Photocrosslinkable liquid crystalline 1,2-phenylene derivatives
Abstract
1,2-Phenylene cpds. of formula (I) are new. In (I), A-F = pyr(im)idin-2,5-diyl; trans-1,4-cyclohexylene; trans-1,3-dioxan-2,5-diyl; or 1,4-phenylene, opt. substd. by halogen, Me and/or CN; Z<1>, Z<2>, Z<7> = -CH2-(CH2)s-, -(CH2)sO-, -O(CH2)s-, -COO-, -OOC-, -(CH2)sCOO- or -(CH2)sOOC-; Z<3>, Z<4>, Z<8> = a single bond, -CH2CH2-, -CH2O-, -OCH2-, -COO-, -OOC-, -(CH2)4-, -O(CH2)3- or -(CH2)3O-; Z<5>, Z<6> = -(CY2)s-, -O(CY2)s-, -(CY2)sO-, -(CY2)sCOO-, -(CY2)sOOC-, -(SiÄMeÜ2O)s-, -OCH2(SiÄMeÜ2O)sSiÄMeÜ2CH2O- or -NHCH2(SiÄMeÜ2O)sSiÄMeÜ2CH2NH-; Y = H or F; m, n, w, r = 0, 1 or 2; s = 1-16; R<1>, R<2> = crosslinkable CH2=CH-, CH2=CX-COO-, CH2=CH-COO-Ph-, CH2=CX-CO-NH-, CH2=C(COOR')-CH2-COO-, CH2=CH-O-, CH2=CH-OOC-, Ph-CH=CH-, Me-C(=NR')-, cis,trans-HOO-CR'=CR'-COO- epoxy, R'-Phe-CH=CH- or R"-Phe-CH=CH-COO- gps.; X = H, Me, Cl or Ph; Ph = phenyl; Phe = phenylene; R' = lower alkyl; R" = Me, OMe, CN or halogen; R<1>-Z<5> and R<2>-Z<6> contain no -O-O- or -N-O- gps.; R<3> = H; halogen; CN; or an alkyl, alkoxy, alkoxycarbonyl or alkanoyloxy gp., opt. substd. y OMe, CN and/or halogen; X<1>, X<2>, X<3> = H, halogen, CN or lower alkyl. Also claimed are curable, liquid crystalline (LC) mixts. contg. NOTLESS 2 components, NOTLESS 1 of which is a cpd. (I).

Term
Term ended
Projected expiry passed 19 July 2016, 10.2 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
12 claims: 12 independent, 0 dependent
- 1Compounds of the general formula I whereinRings A - F each pyridine-2,5-diyl, pyrimidine-2,5-diyl, trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diyl or independently of one another optionally with halogen, methyl and / or cyano substituted 1,4-phenylene;Z.1, Z2 and Z7 independently of each other -CH2- (CH2)s-, - (CH2)sO-, -O (CH2)s-, -COO-, -OOC-, - (CH2)sCOO- - or - (CH2)sOOC-;Z.3, Z4 and Z8 independently of each other a single bond, -CH2CH2-, -CH2O-, -OCH2-, -COO-, -OOC-, - (CH2)4-, -O (CH2)3- or - (CH2)3O-;Z.5 and Z6 - (CY2)s-, -O (CY2)s-, - (CY2)sO-, - (CY2)sCOO-, - (CY2)sOOC-, - (Si [(CH3)2]O)s-, -OCH2(Themselves3)2]O)sThemselves3)2] CH2O-, or -NHCH2(Themselves3)2]O)sThemselves3)2] CH2NH-;Y is hydrogen or fluorine;m, n, q and r independently of one another 0, 1 or 2;s is an integer from 1 to 16;R1 and R2 crosslinkable groups of the structure CH2= CH-, CH2= CH-COO-, CH2= C (CH3) -COO-, CH2= C (Cl) -COO-, CH2= C (Ph) -COO-, CH2= CH-COO-Ph-, CH2= CH-CO-NH-, CH2= C (CH3) -CONH-, CH2= C (Cl) -CONH-, CH2= C (Ph) -CONH-, CH2= C (COOR ') - CH2-COO-, CH2= CH-O-, CH2= CH-OOC-, Ph-CH = CH-, CH3-C (= NR ') -, -cis, -trans HOO-CR' = CR'-COO-,Ph phenyl;R 'lower alkyl;R '' is methyl, methoxy, cyano or halogen, with the proviso that R1-Z5 and R2-Z6 contain no -OO or -NO- groups;R3 Hydrogen, halogen, cyano, or an alkyl, alkoxy, alkoxycarbonyl or alkanoyloxy group optionally substituted with methoxy, cyano and / or halogen;andX1, X2 and X3 independently represent hydrogen, halogen, cyano or lower alkyl, where for m = 2 and / or n = 2 the two rings B and D may be the same or different. Verbindungen der allgemeinen Formel I worin Ringe A - F je Pyridin-2,5-diyl, Pyrimidin-2,5-diyl, trans-1,4-Cyclohexylen, trans-1,3-Dioxan-2,5-diyl oder unabhängig voneinander gegebenenfalls mit Halogen, Methyl und/oder Cyano substituiertes 1,4-Phenylen;Z1, Z2 und Z7 unabhängig voneinander -CH2-(CH2)s-, -(CH2)sO-, -O(CH2)s-, -COO-, -OOC-, -(CH2)sCOO- - oder -(CH2)sOOC-;Z3, Z4 und Z8 unabhängig voneinander eine Einfachbindung, -CH2CH2-, -CH2O-, -OCH2-, -COO-, -OOC-, -(CH2)4-, -O(CH2)3- oder -(CH2)3O-;Z5 und Z6 -(CY2)s-, -O(CY2)s-, -(CY2)sO-, -(CY2)sCOO-, -(CY2)sOOC-, -(Si[(CH3)2]O)s-, -OCH2(Si[(CH3)2]O)sSi[(CH3)2]CH2O-, oder -NHCH2(Si[(CH3)2]O)sSi[(CH3)2]CH2NH-;Y Wasserstoff oder Fluor;m, n, q und r unabhängig voneinander 0, 1 oder 2;s eine ganze Zahl von 1 bis 16;R1 und R2 vernetzbare Gruppen der Struktur CH2=CH-, CH2=CH-COO-, CH2=C(CH3)-COO-, CH2=C(Cl)-COO-, CH2=C(Ph)-COO-, CH2=CH-COO-Ph-, CH2=CH-CO-NH-, CH2=C(CH3)-CONH-, CH2=C(Cl)-CONH-, CH2=C(Ph)-CONH-, CH2=C(COOR')-CH2-COO-, CH2=CH-O-, CH2=CH-OOC-, Ph-CH=CH-, CH3-C(=NR')-, -cis,-trans HOO-CR'=CR'-COO-, Ph Phenyl;R' niederes Alkyl;R'' Methyl, Methoxy, Cyano oder Halogen bedeuten, mit der Massgabe, dass R1-Z5 und R2-Z6 keine -O-O- oder -N-O- Gruppen enthalten;R3 Wasserstoff, Halogen, Cyano, oder eine gegebenenfalls mit Methoxy, Cyano und/oder Halogen substituierte Alkyl-, Alkoxy-, Alkoxycarbonyl- oder Alkanoyloxy-Gruppe;undX1, X2 und X3 unabhängig Wasserstoff, Halogen, Cyano oder Niederalkyl bedeuten, wobei für m=2 und/oder n=2 die beiden Ringe B und D gleich oder verschieden sein können.
- 2Compounds according to claim 1 of formula I. whereinRings A - F each pyridine-2,5-diyl, pyrimidine-2,5-diyl, trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diyl or independently of one another optionally with halogen, methyl and / or cyano substituted 1,4-phenylene;Z.1, Z2 and Z7 independently of each other -CH2-CH2-, -CH2-O-, -COO-, -OOC-, - (CH2)4- or - (CH2)3O-;Z.3, Z4 and Z8 independently of each other a single bond, -CH2CH2-, -CH2O-, -OCH2-, -COO-, -OOC-, - (CH2)4-, -O (CH2)3- or - (CH2)3O-;Z.5 and Z6 - (CY2)s-, -O (CY2)s-, - (CY2)sO-, - (CY2)sCOO-, - (CY2)sOOC-, - (Si [(CH3)2]O)s-, -OCH2(Themselves3)2]O)sThemselves3)2] CH2O-, or -NHCH2(Themselves3)2]O)sThemselves3)2] CH2NH-;Y is hydrogen or fluorine;m, n, q and r independently of one another 0 or 1;s is an integer from 1 to 16;R1 and R2 crosslinkable groups of the structure CH2= CH-, CH2= CH-COO-, CH2= C (CH3) -COO-, CH2= C (Cl) -COO-, CH2= C (Ph) -COO-, CH2= CH-COO-Ph-, CH2= CH-CO-NH-, CH2= C (CH3) -CONH-, CH2= C (Cl) -CONH-, CH2= C (Ph) -CONH-, CH2= C (COOR ') - CH2-COO-, CH2= CH-O-, CH2= CH-OOC-, Ph-CH = CH-, CH3-C (= NR ') -, -cis, -trans HOO-CR' = CR'-COO-,Ph phenyl;R 'lower alkyl;R '' is methyl, methoxy, cyano or halogen, with the proviso that R1-Z5 and R2-Z6 contain no -OO or -NO- groups;R3 Hydrogen, halogen, cyano, or an alkyl, alkoxy or alkanoyloxy group which is optionally substituted by methoxy, cyano and / or halogen;andX1, X2 and X3 independently represent hydrogen, halogen, cyano or lower alkyl. Verbindungen gemäss Anspruch 1 der Formel I worin Ringe A - F je Pyridin-2,5-diyl, Pyrimidin-2,5-diyl, trans-1,4-Cyclohexylen, trans- 1,3-Dioxan-2,5-diyl oder unabhängig voneinander gegebenenfalls mit Halogen, Methyl und/oder Cyano substituiertes 1,4-Phenylen;Z1, Z2 und Z7 unabhängig voneinander -CH2-CH2-, -CH2-O-, -COO-, -OOC-, -(CH2)4- oder -(CH2)3O-;Z3, Z4 und Z8 unabhängig voneinander eine Einfachbindung, -CH2CH2-, -CH2O-, -OCH2-, -COO-, -OOC-, -(CH2)4-, -O(CH2)3- oder -(CH2)3O-;Z5 und Z6 -(CY2)s-, -O(CY2)s-, -(CY2)sO-, -(CY2)sCOO-, -(CY2)sOOC-, -(Si[(CH3)2]O)s-, -OCH2(Si[(CH3)2]O)sSi[(CH3)2]CH2O-, oder -NHCH2(Si[(CH3)2]O)sSi[(CH3)2]CH2NH-;Y Wasserstoff oder Fluor;m, n, q und r unabhängig voneinander 0 oder 1;s eine ganze Zahl von 1 bis 16;R1 und R2 vernetzbare Gruppen der Struktur CH2=CH-, CH2=CH-COO-, CH2=C(CH3)-COO-, CH2=C(Cl)-COO-, CH2=C(Ph)-COO-, CH2=CH-COO-Ph-, CH2=CH-CO-NH-, CH2=C(CH3)-CONH-, CH2=C(Cl)-CONH-, CH2=C(Ph)-CONH-, CH2=C(COOR')-CH2-COO-, CH2=CH-O-, CH2=CH-OOC-, Ph-CH=CH-, CH3-C(=NR')-, -cis,-trans HOO-CR'=CR'-COO-, Ph Phenyl;R' niederes Alkyl;R'' Methyl, Methoxy, Cyano oder Halogen bedeuten, mit der Massgabe, dass R1-Z5 und R2-Z6 keine -O-O- oder -N-O- Gruppen enthalten;R3 Wasserstoff, Halogen, Cyano, oder eine gegebenenfalls mit Methoxy, Cyano und/oder Halogen substituierte Alkyl-, Alkoxy- oder Alkanoyloxy-Gruppe;undX1, X2 und X3 unabhängig Wasserstoff, Halogen, Cyano oder Niederalkyl bedeuten.
- 3Compounds according to claim 1 or 2, wherein the crosslinkable radicals R1 and R2 independent of each other CH2= CH-COO-, CH2= C (CH3) -COO-, CH2= CH-O-, mean. Verbindungen nach Anspruch 1 oder 2, worin die vernetzbaren Reste R1 und R2 unabhangig voneinander CH2=CH-COO-, CH2=C(CH3)-COO-, CH2=CH-O-, bedeuten.
- 5Compounds according to one of claims 1 to 4 of the general formula IA whereinA1, B1 and E1 independently of one another optionally fluorine-substituted 1,4-phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl or trans-1,4-cyclohexylene;Z.11 -CH2CH2-, -CH2O-, -COO-, -OOC-, - (CH2)4- or - (CH2)3O-;Z.31 a single bond, -CH2O-, -COO- or -OOC-;Z.51 - (CH2)s'-, - (CH2)s'O-, - (CH2)s'COO- or - (CH2)s'OOC-;Z.71 -CH2O- or -COO-;s' is an integer from 3 to 12;R11 CH2= CH-COO-, CH2= C (CH3) -COO-, CH2= CH-O-,R31 Halogen, cyano, lower alkyl or alkoxycarbonylq is 0 or 1 andX1, X2 and X3 have the meaning given in claim 1. Verbindungen nach einem der Ansprüche 1 bis 4 der allgemeinen Formel IA worin A1, B1 und E1 unabhangig voneinander gegebenenfalls mit Fluor substituiertes 1,4-Phenylen, Pyridin-2,5-diyl, Pyrimidin-2,5-diyl oder trans-1,4-Cyclohexylen;Z11 -CH2CH2-, -CH2O-, -COO-, -OOC-, -(CH2)4- oder -(CH2)3O-;Z31 eine Einfachbindung, -CH2O-, -COO- oder -OOC-;Z51 -(CH2)s'-, -(CH2)s'O-, -(CH2)s'COO- oder -(CH2)s'OOC-;Z71 -CH2O- oder -COO-;s' eine ganze Zahl von 3 bis 12;R11 CH2=CH-COO-, CH2=C(CH3)-COO-, CH2=CH-O-, R31 Halogen, Cyano, niederes Alkyl oder Alkoxycarbonylq 0 oder 1 bedeuten undX1, X2 und X3 die in Anspruch 1 angegebene Bedeutung haben.
- 6Compounds according to claim 5 of the formula Ia-c where R32 Cyano or alkoxycarbonyl;X1, X2 and X3 Means hydrogen;and s' has the meaning given in claim 5. Verbindungen nach Anspruch 5 der Formel Ia-c worin R32 Cyano oder Alkoxycarbonyl;X1, X2 und X3 Wasserstoff bedeutet;und s' die in Anspruch 5 angegebene Bedeutung hat.
- 7Compounds according to one of claims 1 to 4 of the general formula IB whereinA2, B2, B3and E2 1,4-phenylene or trans-1,4-cyclohexylene optionally independently substituted by fluorine;Z.12 (CH2)2COO-, (CH2)s'COO- or - (CH2)s'O-;Z.52 - (CH2)s'-, - (CH2)s'O-, - (CH2)s'COO- or - (CH2)s'OOC-;Z.72 -CH2O- or -COO-;s' is an integer from 3 to 12;R12 CH2= CH-COO-, CH2= C (CH3) -COO-, CH2= CH-O-,R33 Halogen, cyano or alkoxycarbonyl mean.q is 0 or 1 andX1, X2 and X3 have the meaning given in claim 1. Verbindungen nach einem der Ansprüche 1 bis 4 der allgemeinen Formel I-B worin A2, B2, B3und E2 unabhängig voneinander gegebenenfalls mit Fluor substituiertes 1,4-Phenylen oder trans-1,4-Cyclohexylen;Z12 (CH2)2COO-, (CH2)s'COO- oder -(CH2)s'O-;Z52 -(CH2)s'-, -(CH2)s'O-, -(CH2)s'COO- oder -(CH2)s'OOC-;Z72 -CH2O- oder -COO-;s' eine ganze Zahl von 3 bis 12;R12 CH2=CH-COO-, CH2=C(CH3)-COO-, CH2=CH-O-, R33 Halogen, Cyano oder Alkoxycarbonyl bedeuten.q 0 oder 1 bedeuten undX1, X2 und X3 die unter Anspruch 1 angegebene Bedeutung haben.
- 8Compounds according to claim 7 of the formula Id-g where R34 Cyano or alkoxycarbonyl;X1, X2 and X3 Means hydrogen;and s' has the meaning given in claim 7. Verbindungen nach Anspruch 7 der Formel Id-g worin R34 Cyano oder Alkoxycarbonyl;X1, X2 und X3 Wasserstoff bedeutet;und s' die in Anspruch 7 angegebene Bedeutung hat.
- 9Crosslinkable, liquid-crystalline mixtures consisting of at least 2 components, of which at least one component is a compound of the formula I defined in claim 1. Vernetzbare, flüssigkristalline Gemische bestehend aus mindestens 2 Komponenten, wovon mindestens eine Komponente eine Verbindung der in Anspruch 1 definierten Formel I ist.
- 10Crosslinkable, liquid-crystalline mixtures according to claim 9, characterized in that, in addition to one or more compounds of the formula I, one or more compounds from the group of the formulas whereinX is hydrogen, fluorine, chlorine, bromine or methyl;s' is an integer from 3 to 12;t is an integer from 2 to 12;Z -OCH2- or -OOC-;G 1,4-phenylene or 2- or 3-fluoro-1,4-phenylene;S - (CH2)s' - or - (CH2)s'O-;andR CH2= CH-COO-, CH2= C (CH3) -COO-, CH2= CH-O- or mean. Vernetzbare, flüssigkristalline Gemische gemäss Anspruch 9, dadurch gekennzeichnet, dass sie neben einer oder mehreren Verbindungen der Formel I, eine oder mehrere Verbindungen aus der Gruppe der Formeln worin X Wasserstoff, Fluor, Chlor, Brom oder Methyl;s' eine ganze Zahl von 3 bis 12;t eine ganze Zahl von 2 bis 12;Z -OCH2- oder -OOC-;G 1,4-Phenylen oder 2- bzw. 3-Fluor-1,4-phenylen;S -(CH2)s' - oder -(CH2)s'O-;undR CH2=CH-COO-, CH2=C(CH3)-COO-, CH2=CH-O- oder bedeuten.
Independent claims12
68 paragraphs, as filed
The present invention relates to photocrosslinkable liquid-crystalline 1,2-phenylene derivatives, liquid-crystalline mixtures which contain such compounds and their use in the crosslinked state as optical components.
By means of suitable orientation layers or in a field, photocrosslinkable liquid crystals, which are provided with a suitable amount of a photoinitiator, can be oriented on a substrate or in a cell and can then be crosslinked in this state by irradiation with light of a suitable wavelength. The structure created in this way is retained even at high temperatures. Optical components such as waveguides, optical gratings and filters, piezoelectric cells and cells with non-linear optical (NLO) properties, etc. can be produced in this way. Such optical components can be used for example for frequency doubling (SHG) or in color filters.
Other properties, such as birefringence, the refractive index, transparency, etc., must meet different requirements depending on the area of application. For example, optical filter materials should have strong absorption in a direction perpendicular to the filter surface.
In addition to the general interest in photo-crosslinkable liquid crystals for optical components, such liquid-crystalline materials are also suitable as cladding of glass fibers for optical data transmission. The use of such materials increases the elastic modulus in the longitudinal axis of the fiber, reduces the thermal expansion coefficient and thus reduces microbending losses. This leads to increased mechanical stability.
The photocrosslinkable liquid crystals must have good chemical and thermal stability, good solubility in common solvents and good stability against electric fields and electromagnetic radiation. They should have a suitable mesophase in a temperature range from about 25 ° C to about + 100 ° C, in particular from about 25 ° C to about + 80 ° C.
Since liquid crystals are generally used as mixtures of several components, it is important that the components are readily miscible with one another. Conventional photochemically oligomerizable or polymerizable liquid crystals generally have a high melting and clearing point. This has the disadvantage that spontaneous, thermal polymerization can occur prematurely during processing. The spontaneous, thermal polymerization can occur because the processing is carried out at temperatures just below the clearing point, since at this temperature the viscosity in the liquid-crystalline state is the lowest and therefore favorable for good orientation. This spontaneous polymerization leads to the formation of domains, as a result of which the optical and thermal properties in the crosslinked layers produced are significantly impaired. The melting point can be reduced by the production of complex mixtures with several components, which allows processing at lower temperatures, but entails the risk of crystallization of the conventional polymerizable liquid crystals. Compounds which can be photochemically oligomerized or polymerized are described, for example, in EP-A-0 331 233.
It was therefore the task to provide photochemically oligomerizable or polymerizable compounds for use in optical components, optical filters, channel waveguides, Mach-Zehnder structures, etc., which are distinguished by a particularly high optical anisotropy Δn. They should have lower melting and clearing points so that the viscosity is not too high at normal processing temperatures in the liquid crystalline state. Furthermore, they should be orientable and structurable as domain-free as possible and also have excellent thermal stability and long-term stability in the cross-linked state. In addition, they should have positive dielectric anisotropy, in particular for channel waveguides, Mach-Zehnder structures, homeotropic layers, etc., and should be able to be oriented in an electrical field. This allows, for example, the additional structuring by using electrodes of photochemically oligomerizable or polymerizable compounds which are already homogeneously oriented by means of an orientation layer. Conventional photochemically oligomerizable or polymerizable liquid crystals generally have a negative or a very weakly positive dielectric anisotropy.
The present invention now provides compounds which are outstandingly suitable as individual components or as components of liquid-crystal mixtures for the abovementioned applications. The present invention relates to compounds of the general formula I.<chemistry id="chem0001" num="0001"><img file="EP0755918A2_D0001.tif" /></chemistry> wherein<dl id="dl0001" compact="compact"><dt>Rings A - F</dt><dd>each pyridine-2,5-diyl, pyrimidine-2,5-diyl, trans-1,4-cyclo-hexylene, trans-1,3-dioxane-2,5-diyl or independently of one another optionally with halogen, methyl and / or cyano substituted 1,4-phenylene;</dd><dt>Z.<sup>1</sup>, Z<sup>2</sup> and Z<sup>7</sup></dt><dd>independently of each other <sup>-</sup>CH<sub>2</sub>- (CH<sub>2</sub>)<sub>s</sub>-, - (CH<sub>2</sub>)<sub>s</sub>O-, -O (CH<sub>2</sub>)<sub>s</sub>-, -COO-, -OOC-, - (CH<sub>2</sub>)<sub>s</sub>COO- <sup>-</sup> or - (CH<sub>2</sub>)<sub>s</sub>OOC-;</dd><dt>Z.<sup>3</sup>, Z<sup>4</sup> and Z<sup>8</sup></dt><dd>independently of each other a single bond, -CH<sub>2</sub>CH<sub>2</sub>-, -CH<sub>2</sub>O-, -OCH<sub>2</sub>-, -COO-, -OOC-, - (CH<sub>2</sub>)<sub>4</sub>-, -O (CH<sub>2</sub>)<sub>3</sub>- or - (CH<sub>2</sub>)<sub>3</sub>O-;</dd><dt>Z.<sup>5</sup> and Z<sup>6</sup></dt><dd>- (CY<sub>2</sub>)<sub>s</sub>-, -O (CY<sub>2</sub>)<sub>s</sub>-, - (CY<sub>2</sub>)<sub>s</sub>O-, - (CY<sub>2</sub>)<sub>s</sub>COO-, - (CY<sub>2</sub>)<sub>s</sub>OOC-, - (Si [(CH<sub>3</sub>)<sub>2</sub>]O)<sub>s</sub>-, -OCH<sub>2</sub>(Themselves<sub>3</sub>)<sub>2</sub>]O)<sub>s</sub>Themselves<sub>3</sub>)<sub>2</sub>] CH<sub>2</sub>O-, or -NHCH<sub>2</sub>(Themselves<sub>3</sub>)<sub>2</sub>]O)<sub>s</sub>Themselves<sub>3</sub>)<sub>2</sub>] CH<sub>2</sub>NH-;</dd><dt>Y</dt><dd>Hydrogen or fluorine;</dd><dt>m, n, q and r</dt><dd>independently of one another 0, 1 or 2;</dd><dt>s</dt><dd>an integer from 1 to 16;</dd><dt>R<sup>1</sup> and R<sup>2</sup></dt><dd>crosslinkable groups of the structure CH<sub>2</sub>= CH-, CH<sub>2</sub>= CH-COO-, CH<sub>2</sub>= C (CH<sub>3</sub>) -COO-, CH<sub>2</sub>= C (Cl) -COO-, CH<sub>2</sub>= C (Ph) -COO-, CH<sub>2</sub>= CH-COO-Ph-, CH<sub>2</sub>= CH-CO-NH-, CH<sub>2</sub>= C (CH<sub>3</sub>) -CONH-, CH<sub>2</sub>= C (Cl) -CONH-, CH<sub>2</sub>= C (Ph) -CONH-, CH<sub>2</sub>= C (COOR ') - CH<sub>2</sub>-COO-, CH<sub>2</sub>= CH-O-, CH<sub>2</sub>= CH-OOC-, Ph-CH = CH-, CH<sub>3</sub>-C (= NR ') -, -cis, -trans HOO-CR' = CR'-COO-,<chemistry id="chem0002" num="0002"><img file="EP0755918A2_D0002.tif" /></chemistry></dd><dt>Ph</dt><dd>Phenyl;</dd><dt>R '</dt><dd>lower alkyl;</dd><dt>R ''</dt><dd>Methyl, methoxy, cyano or halogen mean, with the proviso that R<sup>1</sup>-Z<sup>5</sup> and R<sup>2</sup>-Z<sup>6</sup> contain no -OO or -NO- groups;</dd><dt>R<sup>3</sup></dt><dd>Hydrogen, halogen, cyano, or an alkyl, alkoxy, alkoxycarbonyl or alkanoyloxy group optionally substituted with methoxy, cyano and / or halogen; and</dd><dt>X<sup>1</sup>, X<sup>2</sup> and X<sup>3</sup></dt><dd>independently represent hydrogen, halogen, cyano or lower alkyl,</dd></dl> where for m = 2 and / or n = 2 the two rings B and D may be the same or different.
Since the compounds of the formula I according to the invention or their mixtures have a mesophase, they can also be oriented on an orientation layer and / or by applying an electrical or magnetic field before crosslinking. This creates a uniform layer.
The crosslinkable group is preferably R.<sup>1</sup> CH<sub>2</sub>= CH-COO-, CH<sub>2</sub>= C (CH<sub>3</sub>) -COO-, CH<sub>2</sub>= C (Cl) -COO-, CH<sub>2</sub>= C (Ph) -COO-, CH<sub>2</sub>= CH-COO-Ph-CH<sub>2</sub>= CH-CONH-, CH<sub>2</sub>= C (CH<sub>3</sub>) -CONH-, CH<sub>2</sub>= C (Ph) -CONH-, CH<sub>2</sub>= CH-O-, CH<sub>2</sub>= CH-OOC-, -cis, trans -HCOO-CR '= CR'-COO-,<chemistry id="chem0003" num="0003"><img file="EP0755918A2_D0003.tif" /></chemistry> wherein R 'and R' 'have the meaning given above.
These are residues which can be photochemically crosslinked in a field after the compounds of the formula I have been oriented.
Particularly preferred groups R<sup>1</sup> are CH<sub>2</sub>= CH-COO-, CH<sub>2</sub>= C (CH<sub>3</sub>) -COO-, CH<sub>2</sub>= CH-O-,<chemistry id="chem0004" num="0004"><img file="EP0755918A2_D0004.tif" /></chemistry>
Particularly preferred groups X<sup>1</sup>, X<sup>2</sup> and X<sup>3</sup> are hydrogen, fluorine, chlorine, cyano and methyl.
The terms used above are explained below: "1,4-Phenylene optionally substituted with halogen, methyl and / or cyano" in the present invention includes 1,4-phenylene, 1,4-phenylene mono- or polysubstituted with fluorine, bromine, chlorine, methyl or cyano, such as for example 2- or 3-flour-1,4-phenylene, 2,3-difluoro-1,4-phenylene, 2,6- or 3,5-difluoro-1,4-phenylene, 2- or 3 -Chlor-1,4-phenylene, 2,3-dichloro-1,4-phenylene, 2,6- or 3,5-dichloro-1,4-phenylene, 2- or 3-bromo-1,4-phenylene, 2- or 3-methyl-1,4-phenylene, 2- or 3-cyano-1,4-phenylene and the like. "Halogen" in the context of the present invention means fluorine, chlorine or bromine, in particular fluorine. "Optionally substituted with methoxy, cyano and / or halogen-substituted alkyl, alkoxy, alkoxycarbonyl, or alkanoyloxy group" in the context of the present invention includes groups in which the alkyl radical can be straight-chain or branched and preferably has 1 to 12 carbon atoms. The groups can be substituted one or more times with methoxy, cyano and / or fluorine, chlorine or bromine. Very preferred groups are methyl, ethyl, propyl, butyl, pentyl, methoxy, ethoxy, propyloxy, butoxy, acetyloxy, propanoyloxy, butanoyloxy, methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, trifluoromethyl, trifluoromethoxy, 2,2,2-trifluoroethoxy, trifluoroacifluoromethoxy, chloro 2-cyanoethyl, 2-fluoroethyl, 2-chloroethyl, 2-bromoethyl, 2-methoxyethoxy, 2,2-difluoroethyl, 2,2,2-trifluoroethyl and the like. "Lower alkyl" in the context of the present invention comprises straight-chain or branched radicals having 1 to 5 carbon atoms, such as methyl ethyl, propyl, butyl, pentyl, i-propyl, i-butyl, t-butyl and the like.
The mesophase type of the compounds according to the invention can be influenced by varying the rings in the side chains. Aromatic rings such as phenylene tend to produce smectic phases, while saturated rings such as trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl rings promote nematic tendencies.
Preferred compounds have the general formula IA<chemistry id="chem0005" num="0005"><img file="EP0755918A2_D0005.tif" /></chemistry> wherein<dl id="dl0002" compact="compact"><dt>A<sup>1</sup>, B<sup>1</sup> and E<sup>1</sup></dt><dd>independently of one another optionally fluorine-substituted 1,4-phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl or trans-1,4-cyclohexylene;</dd><dt>Z.<sup>11</sup></dt><dd>-CH<sub>2</sub>CH<sub>2</sub>-, -CH<sub>2</sub>O-, -COO-, -OOC-, - (CH<sub>2</sub>)<sub>4</sub>- or - (CH<sub>2</sub>)<sub>3</sub>O-;</dd><dt>Z.<sup>31</sup></dt><dd>a single bond, -CH<sub>2</sub>O-, -COO- or -OOC-;</dd><dt>Z.<sup>51</sup></dt><dd>- (CH<sub>2</sub>)<sub>s'</sub>-, - (CH<sub>2</sub>)<sub>s'</sub>O-, - (CH<sub>2</sub>)<sub>s'</sub>COO- or - (CH<sub>2</sub>)<sub>s'</sub>OOC-;</dd><dt>Z.<sup>71</sup></dt><dd>-CH<sub>2</sub>O- or -COO-;</dd><dt>s'</dt><dd>an integer from 3 to 12;</dd><dt>R<sup>11</sup></dt><dd>CH<sub>2</sub>= CH-COO-, CH<sub>2</sub>= C (CH<sub>3</sub>) -COO-, CH<sub>2</sub>= CH-O-,<chemistry id="chem0006" num="0006"><img file="EP0755918A2_D0006.tif" /></chemistry></dd><dt>R<sup>31</sup></dt><dd>Halogen, cyano, lower alkyl or alkoxycarbonyl</dd><dt>q</dt><dd>0 or 1 mean and</dd><dt>X<sup>1</sup>, X<sup>2</sup> and X<sup>3</sup></dt><dd>have the meaning given under formula I.</dd></dl>
Compounds of the formula IA in which q = 0 are very particularly preferred, for example compounds of the general formula Ia-Ic<chemistry id="chem0007" num="0007"><img file="EP0755918A2_D0007.tif" /></chemistry> where R<sup>32</sup> Flour, chlorine, cyano or alkoxycarbonyl; and the remaining symbols are as defined above.
Compounds of the formula Ia in which R<sup>32</sup> Cyano or alkoxycarbonyl and X<sup>1</sup>, X<sup>2</sup> and X<sup>3</sup> Mean hydrogen.
Compounds of the formula IB are likewise preferred<chemistry id="chem0008" num="0008"><img file="EP0755918A2_D0008.tif" /></chemistry> wherein<dl id="dl0003" compact="compact"><dt>A<sup>2</sup>, B<sup>2</sup>, B<sup>3</sup>and E<sup>2</sup></dt><dd>1,4-phenylene or trans-1,4-cyclohexylene optionally independently substituted by fluorine;</dd><dt>Z.<sup>12</sup></dt><dd>(CH<sub>2</sub>)<sub>2</sub>COO-, (CH<sub>2</sub>)<sub>s'</sub>COO- or - (CH<sub>2</sub>)<sub>s'</sub>O-;</dd><dt>Z.<sup>52</sup></dt><dd>- (CH<sub>2</sub>)<sub>s'</sub>-, - (CH<sub>2</sub>)<sub>s'</sub>O-, - (CH<sub>2</sub>)<sub>s'</sub>COO- or - (CH<sub>2</sub>)<sub>s'</sub>OOC-;</dd><dt>Z.<sup>72</sup></dt><dd>-CH<sub>2</sub>O- or -COO-;</dd><dt>s'</dt><dd>an integer from 3 to 12;</dd><dt>R<sup>12</sup></dt><dd>CH<sub>2</sub>= CH-COO-, CH<sub>2</sub>= C (CH<sub>3</sub>) -COO-, CH<sub>2</sub>= CH-O-,<chemistry id="chem0009" num="0009"><img file="EP0755918A2_D0009.tif" /></chemistry></dd><dt>R<sup>33</sup></dt><dd>Halogen, cyano or alkoxycarbonyl mean.</dd><dt>q</dt><dd>0 or 1 mean and</dd><dt>X<sup>1</sup>, X<sup>2</sup> and X<sup>3</sup></dt><dd>have the meaning given under formula I.</dd></dl>
Compounds of the formula IB in which q = 0 are very particularly preferred, such as, for example, compounds of the general formula Id-g<chemistry id="chem0010" num="0010"><img file="EP0755918A2_D0010.tif" /></chemistry><chemistry id="chem0011" num="0011"><img file="EP0755918A2_D0011.tif" /></chemistry> where R<sup>34</sup> Is fluorine, chlorine, cyano or alkoxycarbonyl; and the remaining symbols are as defined above.
The compounds of the formula IA and IB are synthetically very easily accessible and can be prepared, for example, analogously to the methods shown in schemes 1 to 10. For example, 2-hydroxyphenols can be reacted with (ω-acryloyloxyalkyloxy) -substituted carboxylic acids in a manner known per se. This esterification can be carried out, for example, via the corresponding methanesulfonic acid ester in tetrahydrofuran or in the presence of N, N'-dicyclohexylcarbodiimide (DCC) and 4- (dimethylamino) pyridine (DMAP) in dichloromethane or another suitable solvent, such as chloroform. The 2-hydroxyphenols can also be reacted in a Mitsunobu reaction with (ω-acryloyloxyalkyloxy) substituted benzyl alcohols. This etherification can take place, for example, at room temperature in the presence of diethyl azodicarboxylate and triphenylphosphine in tetrahydrofuran or another suitable solvent, such as, for example, N, N'-dimethylfomamide. The 2-hydroxyphenols are known or can be prepared by methods known to those skilled in the art.
In the schemes, the symbols have the meanings given above.<chemistry id="chem0012" num="0012"><img file="EP0755918A2_D0012.tif" /></chemistry><chemistry id="chem0013" num="0013"><img file="EP0755918A2_D0013.tif" /></chemistry><chemistry id="chem0014" num="0014"><img file="EP0755918A2_D0014.tif" /></chemistry><chemistry id="chem0015" num="0015"><img file="EP0755918A2_D0015.tif" /></chemistry><chemistry id="chem0016" num="0016"><img file="EP0755918A2_D0016.tif" /></chemistry><chemistry id="chem0017" num="0017"><img file="EP0755918A2_D0017.tif" /></chemistry><chemistry id="chem0018" num="0018"><img file="EP0755918A2_D0018.tif" /></chemistry><chemistry id="chem0019" num="0019"><img file="EP0755918A2_D0019.tif" /></chemistry><chemistry id="chem0020" num="0020"><img file="EP0755918A2_D0020.tif" /></chemistry><chemistry id="chem0021" num="0021"><img file="EP0755918A2_D0021.tif" /></chemistry>
A small amount of BHT (2,6-di-tert-butyl-4-methylphenol / "butyl-hydroxytoluene") is added to each stage to prevent undesirable thermal crosslinking.
Compounds of the formula I in which the crosslinkable side chains are different can be prepared by monoesterification of 2-hydroxyphenols with a (ω-acryloyloxyaIkyloxy) substituted carboxylic acid. Subsequent esterification with another (ω-acryloyloxyalkyloxy) substituted carboxylic acid gives the asymmetric diester. The corresponding asymmetric diethers can be accessed using a similar two-step process. The starting materials are known and some available in the stores.
The compounds of the formulas I can be used as pure compounds, or in the form of mixtures with one another and / or with other liquid crystal components.
The liquid-crystalline mixtures according to the invention contain at least 2 components, of which at least one component is a compound of the formula I. A second and optionally further components can be further compounds of the formula I or other known liquid-crystalline compounds having a photocrosslinkable group. One or more chiral components can also be contained in the mixture.
Because of the good solubility of the compounds of the formula I and because of their good miscibility with one another, the proportion of compounds of the formula I in the mixtures according to the invention can be high and can be up to 100% by weight.
In addition to one or more compounds of the formula I, the mixtures according to the invention preferably contain one or more compounds from the group of the compounds of the general formulas<chemistry id="chem0022" num="0022"><img file="EP0755918A2_D0022.tif" /></chemistry><chemistry id="chem0023" num="0023"><img file="EP0755918A2_D0023.tif" /></chemistry> wherein<dl id="dl0004" compact="compact"><dt>X</dt><dd>Hydrogen, fluorine, chlorine, bromine or methyl;</dd><dt>s'</dt><dd>an integer from 3 to 12; and</dd><dt>t</dt><dd>is an integer from 2 to 12;</dd><dt>Z.</dt><dd>-Oh<sub>2</sub>- or -OOC-;</dd><dt>G</dt><dd>1,4-phenylene or 2- or 3-fluoro-1,4-phenylene;</dd><dt>S</dt><dd>- (CH<sub>2</sub>)<sub>s'</sub> - or - (CH<sub>2</sub>)<sub>s'</sub>O-; and</dd><dt>R</dt><dd>CH<sub>2</sub>= CH-COO-, CH<sub>2</sub>= C (CH<sub>3</sub>) -COO-, CH<sub>2</sub>= CH-O-,<chemistry id="chem0024" num="0024"><img file="EP0755918A2_D0024.tif" /></chemistry> mean.</dd></dl>
The following examples further illustrate the preparation of the compounds of the formula I and liquid-crystalline mixtures comprising these compounds. C means a crystalline phase, S a smectic phase, N a nematic phase and I the isotropic phase.
example 1
To a solution of 2.0 g of 4- (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) benzoic acid in 40 ml of tetrahydrofuran was added with stirring at -25<sup>O</sup>C 0.9 g of triethylamine and then 0.5 g of methanesulfochloride were added dropwise. The reaction mixture was at -25 for 1 hour<sup>O</sup>C stirred, mixed with 0.28 g of 3,4-dihydroxybenzonitrile and 0.05 g of 4- (dimethylamino) pyridine, stirred overnight at room temperature, poured into 100 ml of water and then extracted three times with 50 ml of diethyl ether. The organic phases were combined, washed twice with 100 ml of water each time, dried over magnesium sulfate, filtered and the filtrate was concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) and recrystallization twice from the fractions according to thin layer chromatography from a cyclohexane / ethyl acetate mixture (vol. 8: 2) gave 1.2 g of 3,4-bis [4- (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) phenylcarbonyloxy] benzonitrile; M.p. (CS<sub>A</sub>) 70<sup>O</sup>C, S<sub>A</sub>-N 139<sup>O</sup>C, Klp. (NI) 152<sup>O</sup>C.
The 4- (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) benzoic acid used as the starting material was prepared as follows:<ul id="ul0001" list-style="none"><li>(a). A solution of 1.9 g of 4-hydroxybenzaldehyde, 5.0 g of 4- [8-acryloyloxyoctyloxy] benzoic acid and 0.1 g of 4- (dimethylamino) pyridine in 100 ml of dichloromethane was added with stirring at 0 ° C. in the course of 15 minutes 3 , 9 g of N, N'-dicyclohexylcarbodiimide. The reaction mixture was stirred at room temperature overnight, filtered and the filtrate was concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) and recrystallization twice from the fractions according to thin layer chromatography from ethyl acetate gave 5.5 g of 4- (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) benzaldehyde; M.p. 73<sup>O</sup>C.</li><li>(b). A solution of 5.5 g of 4- (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) benzaldehyde in 100 ml of acetone was added dropwise with 25 ml of Jones' reagent. The mixture was stirred at room temperature overnight, poured onto 100 ml of water and extracted three times with 50 ml of ethyl acetate each time. The organic phases were combined, washed twice with 100 ml of water each time, dried over magnesium sulfate, filtered and the filtrate was concentrated. The residue was recrystallized from ethyl acetate. This gave 3.5 g of 4- (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) benzoic acid; M.p. (CN) 116<sup>O</sup>C, Klp. (NI) 240<sup>O</sup>C (decomposition).</li></ul>
The following connections can be made in an analogous manner:<ul id="ul0002" list-style="none" compact="compact"><li>3,4-bis [4- (4- [3-acryloyloxypropyloxy] phenylcarbonyloxy) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (4- [4-acryloyloxybutyloxy] phenylcarbonyloxy) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (4- [5-acryloyloxypentyloxy] phenylcarbonyloxy) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (4- [6-acryloyloxyhexyloxy] phenylcarbonyloxy) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (4- [7-acryloyloxyheptyloxy] phenylcarbonyloxy) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (4- [9-acryloyloxynonyloxy] phenylcarbonyloxy) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (4- [10-acryloyloxydecyloxy] phenylcarbonyloxy) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (4- [11-acryloyloxyundecyloxy] phenylcarbonyloxy) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (4- [12-acryloyloxydodecyloxy] phenylcarbonyloxy) phenylcarbonyloxy] benzonitrile;</li><li>1,2-bis [4- (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) phenylcarbonyloxy] benzene; M.p. (C- S<sub>A</sub>) 89 ° C, p<sub>A</sub>-N, 105 ° C, bp. (NI) 107 ° C;</li><li>Methyl 3,4-bis [4- (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) phenylcarbonyloxy] benzoic acid ester;</li><li>Ethyl 3,4-bis [4- (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) phenylcarbonyloxy] benzoic acid ester; M.p. (C- S<sub>A</sub>) 25 ° C, clp. (P<sub>A</sub>-I) 150 ° C;</li><li>3,4-bis [4- (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) phenylcarbonyloxy] toluene;</li><li>3,4-bis [4- (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -1-ethylbenzene;</li><li>3,4-bis [4- (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -1-propylbenzene.</li></ul>
Example 2
A solution of 0.4 g of 3,4-bis (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) benzoic acid in 40 ml of tetrahydrofuran was added with stirring at -25<sup>O</sup>C 0.9 g of triethylamine and then 0.5 g of methanesulfochloride were added dropwise. The reaction mixture was at -25 for 1 hour<sup>O</sup>C stirred, then mixed with 0.06 g of 2-fluoro-4-hydroxybenzonitrile and 0.05 g of 4- (dimethylamino) pyridine in 40 ml of tetrahydrofuran, stirred overnight at room temperature, poured into 100 ml of water and then three times with 50 each ml of diethyl ether extracted. The organic phases were combined, washed twice with 100 ml of water each time, dried over magnesium sulfate, filtered and the filtrate was concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) and recrystallization twice from the fractions according to thin layer chromatography from ethyl alcohol gave 1.2 g of 3,4-bis [4- (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -2-fluorobenzonitrile; M.p. (CI) 85<sup>O</sup>C, Klp. (NI) 38<sup>O</sup>C.
The 3,4-bis (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) benzoic acid used as the starting material was prepared as follows:<ul id="ul0003" list-style="none"><li>(a). A solution of 1.0 g of 4- (8-acryloyloxyoctyloxy) benzoic acid in 40 ml of tetrahydrofuran was added with stirring at -25<sup>O</sup>C 0.6 g of triethylamine and then 0.4 g of methanesulfochloride were added dropwise. The reaction mixture was at -25 for 1 hour<sup>O</sup>C stirred, then mixed with 0.20 g of 4-hydroxybenzaldehyde and 0.03 g of 4- (dimethylamino) pyridine in 40 ml of tetrahydrofuran, stirred overnight at room temperature, poured into 100 ml of water and then extracted three times with 50 ml of diethyl ether. The organic phases were combined, washed twice with 100 ml of water each time, dried over magnesium sulfate, filtered and the filtrate was concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) and recrystallization twice from the fractions according to thin layer chromatography from a cyclohexane / ethyl acetate mixture (vol. 8: 2) gave 0.6 g of 3,4-bis (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) benzaldehyde; M.p. (CI) 56<sup>O</sup>C.</li><li>(b). A solution of 0.6 g of 3,4-bis (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) benzaldehyde in 20 ml of acetone was added dropwise at 0 ° C. with 2 ml of Jones' reagent. The mixture was stirred at 0 ° C. for 1 hour and then at room temperature overnight, poured onto 100 ml of water and filtered, the filter material was washed with water and then dried. This gave 0.4 g of 3,4-bis (4- [8-acryloyloxyoctyloxy] phenylcarbonyloxy) benzoic acid.</li></ul>
The following connections can be made in an analogous manner:<ul id="ul0004" list-style="none" compact="compact"><li>3,4-bis [4- (4- [3-acryloyloxypropyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -2-fluorobenzonitrile;</li><li>3,4-bis [4- (4- [4-acryloyloxybutyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -2-fluorobenzonitrile;</li><li>3,4-bis [4- (4- [5-acryloyloxypentyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -2-fluorobenzonitrile;</li><li>3,4-bis [4- (4- [6-acryloyloxyhexyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -2-fluorobenzonitrile;</li><li>3,4-bis [4- (4- [7-acryloyloxyheptyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -2-fluorobenzonitrile;</li><li>3,4-bis [4- (4- [9-acryloyloxynonyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -2-fluorobenzonitrile;</li><li>3,4-bis [4- (4- [10-acryloyloxydecyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -2-fluorobenzonitrile;</li><li>3,4-bis [4- (4- [11-acryloyloxyundecyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -2-fluorobenzonitrile;</li><li>3,4-bis [4- (4- [12-acryloyloxydodecyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -2-fluorobenzonitrile;</li><li>3,4-bis [4- (4- [6-acryloyloxyhexyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -1-fluorobenzene;</li><li>3,4-bis [4- (4- [6-acryloyloxyhexyloxy] phenylcarbonyloxy) phenylcarbonyloxyl-1-chlorobenzene;</li><li>3,4-bis [4- (4- [6-acryloyloxyhexyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -1-bromobenzene ;;</li><li>3,4-bis [4- (4- [6-acryloyloxyhexyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -1, 2-difluorobenzene;</li><li>3,4-bis [4- (4- [6-acryloyloxyhexyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -1, 2-dichlorobenzene;</li><li>3,4-bis [4- (4- [6-acryloyloxyhexyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -1, 2-dicyanobenzene;</li><li>3,4-bis [4- (4- [6-acryloyloxyhexyloxy] phenylcarbonyloxy) phenylcarbonyloxy] -1-chloro-2-fluorobenzene.</li></ul>
Example 3
A solution of 2.0 g of 4- (8-acryloyloxyoctyloxy) biphenyl-4'-carboxylic acid in 40 ml of tetrahydrofuran is stirred at -25<sup>O</sup>C 0.9 g of triethylamine and then 0.5 g of methanesulfochloride were added dropwise. The reaction mixture is 1 hour at -25<sup>O</sup>C stirred, then mixed with 0.25 g of 3,4-dihydroxy-benzonitrile and 0.05 g of 4- (dimethylamino) pyridine, stirred overnight at room temperature, poured onto 100 ml of water and then extracted three times with 50 ml of diethyl ether. The organic phases are combined, washed twice with 100 ml of water each time, dried over magnesium sulfate, filtered and the filtrate is concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) and recrystallization twice from the fractions according to thin layer chromatography from a cyclohexane / ethyl acetate mixture (vol. 8: 2) gives 1.0 g of 3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-carbonyloxy] benzonitrile.
The 4- (8-acryloyloxyoctyloxy) biphenyl-4'-carboxylic acid used as the starting material is prepared as follows:<ul id="ul0005" list-style="none"><li>(a). A solution of 5.0 g of 4'-hydroxybiphenyl-4-carbonitrile and 5.1 g of 8-chloro-1-octanol in 100 ml of ethyl methyl ketone is mixed with 14.1 g of finely powdered potassium carbonate and the mixture is heated under gentle reflux overnight . The suspension is sucked off and the filtrate is concentrated in vacuo. Chromatography of the residue on silica gel with hexane / ethyl acetate (vol. 1: 1) gives 4.9 g of 4 '- (8-hydroxyoctyloxy) biphenyl-4-carbonitrile.</li><li>(b). A solution of 4.9 g of 4-cyano-4 '- (8-hydroxyoctyloxy) biphenyl in 25 ml of toluene is mixed with 50 ml of a 1.2 M solution of diisobutylaluminum hydride in toluene at 0 ° C. and the mixture is stirred overnight at room temperature . The reaction mixture is poured onto 100 ml of 1.0 N sulfuric acid and extracted twice with 50 ml of ethyl acetate each time. The organic phases are washed with 50 ml of water, dried over magnesium sulfate and concentrated. Chromatography of the residue on silica gel with hexane / ethyl acetate (vol. 8: 2) and recrystallization of the fractions according to thin layer chromatography from ethyl alcohol gives 3.8 g of 4-formyl-4 '- (8-hydroxyoxyoctyloxy) biphenyl.</li><li>(c). A solution of 3.8 g of 4-formyl-4 '- (8-hydroxyoctyloxy) biphenyl, 0.9 g of acrylic acid and 0.05 g of 4- (dimethylamino) pyridine in 25 ml of dichloromethane is stirred within 5 minutes 2. 9 g of N, N '-dicyclohexylcarbodiimide added. The reaction mixture is stirred further overnight, filtered and then concentrated. Chromatography of the residue on silica gel with hexane / ethyl acetate (vol. 8: 2) and recrystallization of the fractions according to thin layer chromatography from ethyl alcohol gives 2.5 g of 4-formyl-4 '- (8-acryloyloxyoctyloxy) biphenyl.</li><li>(d). A solution of 2.5 g of 4-formyl-4 '- (8-acryloyloxyoctyloxy) biphenyl in 100 ml of acetone is mixed dropwise with 10 ml of Jones' reagent. The mixture is stirred at room temperature for 1 hour and then at room temperature overnight, poured onto 100 ml of water and then extracted three times with 50 ml of ethyl acetate each time. The combined organic phases are washed twice with 100 ml of water each time, dried over magnesium sulfate, filtered and the filtrate is concentrated. The residue is recrystallized from ethyl acetate. This gives 1.6 g of 4- (8-acryloyloxyoctyloxy) biphenyl-4'-carboxylic acid.</li></ul>
The following connections can be made in an analogous manner:<ul id="ul0006" list-style="none" compact="compact"><li>3,4-bis [4- (3-acryloyloxypropyloxy) biphenyl-4'-carbonyloxy] benzonitrile;</li><li>3,4-bis [4- (4-acryloyloxybutyloxy) biphenyl-4'-carbonyloxy] benzonitrile;</li><li>3,4-bis [4- (5-acryloyloxypentyloxy) biphenyl-4'-carbonyloxy] benzonitrile;</li><li>3,4-bis [4- (6-acryloyloxyhexyloxy) biphenyl-4'-carbonyloxy] benzonitrile;</li><li>3,4-bis [4- (7-acryloyloxyheptyloxy) biphenyl-4'-carbonyloxy] benzonitrile;</li><li>3,4-bis [4- (9-acryloyloxynonyloxy) biphenyl-4'-carbonyloxy] benzonitrile;</li><li>3,4-bis [4- (10-acryloyloxydecyloxy) biphenyl-4'-carbonyloxy] benzonitrile;</li><li>3,4-bis [4- (11-acryloyloxyundecyloxy) biphenyl-4'-carbonyloxy] benzonitrile;</li><li>3,4-bis [4- (12-acryloyloxydodecyloxy) biphenyl-4'-carbonyloxy] benzonitrile;</li><li>Methyl 3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-carbonyloxy] benzoic acid ester;</li><li>Ethyl 3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-carbonyloxy] benzoic acid ester;</li><li>Propyl 3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-carbonyloxy] benzoic acid ester;</li><li>3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-carbonyloxy] toluene;</li><li>3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-carbonyloxy] -1-ethylbenzene;</li><li>3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-carbonyloxy] -1-propylbenzene;</li></ul>
Example 4
To a solution of 2.0 g of 4- (5- [8-acryloyloxyoctyloxy] pyrimidin-2-yl) benzoic acid in 40 ml of tetrahydrofuran is added with stirring at -25<sup>O</sup>C 0.9 g of triethylamine and then 0.5 g of methanesulfochloride were added dropwise. The reaction mixture is 1 hour at -25<sup>O</sup>C stirred, then mixed with 0.28 g of 3,4-dihydroxybenzonitrile and 0.05 g of 4- (dimethylamino) pyridine, stirred overnight at room temperature, poured onto 100 ml of water and then extracted three times with 50 ml of diethyl ether. The organic phases are combined, washed twice with 100 ml of water each time, dried over magnesium sulfate, filtered and the filtrate is concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) and recrystallization twice from the fractions according to thin layer chromatography from a cyclohexane / ethyl acetate mixture (vol. 8: 2) gives 1.1 g of 3,4-bis [4- (5- [8-acryloyloxyoctyloxy] pyrimidine-2- yl) phenylcarbonyloxy] benzonitrile.
The 4- (5- [8-acryloyloxyoctyloxy] pyrimidin-2-yl) benzoic acid used as the starting material is prepared as follows:<ul id="ul0007" list-style="none"><li>(a). A mixture of 10.0 g of 4- (5-benzyloxypyrimidin-2-yl) benzaldehyde, 0.2 g of sodium carbonate and 250 ml of ethyl acetate is mixed with 1.0 g of palladium on activated carbon (10%), and at normal pressure and room temperature to hydrogenated to a standstill of hydrogen uptake. The inorganic material is filtered off over Sillit and the filtrate is concentrated. Recrystallization of the crude product from hexane gives 6.1 g of pure 4- (5-hydroxypyrimidin-2-yl) benzaldehyde.</li><li>(b). A solution of 6.1 g of 4- (5-hydroxypyrimidin-2-yl) benzaldehyde and 6.0 g of 8-chloro-1-octanol in 100 ml of ethyl methyl ketone is mixed with 16.9 g of finely powdered potassium carbonate and the mixture warmed overnight under gentle reflux. The suspension is sucked off and the filtrate is concentrated in vacuo. Chromatography of the residue on silica gel with hexane / ethyl acetate (vol. 1: 1) gives 5.5 g of 4- (5- [8-hydroxyoctyloxy] pyrimidin-2-yl) benzaldehyde.</li><li>(c). To a solution of 5.5 g of 4- (5- [8-hydroxyoctyloxy] pyrimidin-2-yl) benzaldehyde, 1.2 g of acrylic acid and 0.2 g of 4- (dimethylamino) pyridine in 25 ml of dichloromethane is stirred with stirring 5 minutes 4.2 g of N, N '-dicyclohexylcarbodiimide added. The reaction mixture is stirred overnight, filtered and the filtrate is concentrated. Chromatography of the residue on silica gel with hexane / ethyl acetate (vol. 8: 2) and recrystallization of the fractions according to thin layer chromatography from ethyl alcohol gives 4.8 g of 4- (5- [8-acryloyloxyoctyloxy] pyrimidin-2-yl) benzaldehyde.</li><li>(d). A solution of 3.2 g of 4- (5- [8-acryloyloxyoctyloxy] pyrimidin-2-yl) benzaldehyde in 100 ml of acetone is added dropwise with 20 ml of Jones' reagent. The mixture is stirred at room temperature overnight, poured onto 100 ml of water and then extracted three times with 50 ml of ethyl acetate each time. The organic phases are combined, washed twice with 100 ml of water each time, dried over magnesium sulfate, filtered and the filtrate is concentrated. The residue is recrystallized from ethyl acetate. This gives 2.0 g of 4- (5- [8-acryloyloxyoctyloxy] pyrimidin-2-yl) benzoic acid.</li></ul>
The following connections can be made in an analogous manner:<ul id="ul0008" list-style="none" compact="compact"><li>3,4-bis [4- (5- [3-acryloyloxypropyloxy] pyrimidin-2-yl) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (5- [4-acryloyloxybutyloxy] pyrimidin-2-yl) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (5- [5-acroloyloxypentyloxy] pyrimidin-2-yl) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (5- [6-acryloyloxyhexyloxy] pyrimidin-2-yl) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (5- [7-acryloyloxyheptyloxy] pyrimidin-2-yl) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (5- [9-acryloyloxynonyloxy] pyrimidin-2-yl) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (5- [10-acryloyloxydecyloxy] pyrimidin-2-yl) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (5- [11-acryloyloxyundecyloxy] pyrimidin-2-yl) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (5- [12-acryloyloxydodecyloxy] pyrimidin-2-yl) phenylcarbonyloxy] benzonitrile;</li><li>Methyl 3,4-bis [4- (5- [8-acryloyloxyoctyloxy] pyrimidin-2-yl) phenylcarbonyloxy] benzoic acid ester;</li><li>Ethyl 3,4-bis [4- (5- [8-acryloyloxyoctyloxy] pyrimidin-2-yl) phenylcarbonyloxy] benzoic acid ester;</li><li>Propyl 3,4-bis [4- (5- [8-acryloyloxyoctyloxy] pyrimidin-2-yl) phenylcarbonyloxy] benzoic acid ester;</li><li>3,4-bis [4- (5- [12-acryloyloxydodecyloxy] pyrimidin-2-yl) phenylcarbonyloxy] toluene;</li><li>3,4-bis [4- (5- [12-acryloyloxydodecyloxy] pyrimidin-2-yl) phenylcarbonyloxy] -1-ethylbenzene;</li><li>3,4-bis [4- (5- [12-acryloyloxydodecyloxy] pyrimidin-2-yl) phenylcarbonyloxy] -1-propylbenzene;</li><li>3,4-bis [2- (4- [3-acryloyloxypropyloxy] phenyl) pyridin-5-ylcarbonyloxy] benzonitrile;</li><li>3,4-bis [2- (4- [4-acryloyloxybutyloxy] phenyl) pyridin-5-ylcarbonyloxy] benzonitrile;</li><li>3,4-bis [2- (4- [5-acryloyloxypentyloxy] phenyl) pyridin-5-ylcarbonyloxy] benzonitrile;</li><li>3,4-bis [2- (4- [6-acryloyloxyhexyloxy] phenyl) pyridin-5-ylcarbonyloxy] benzonitrile;</li><li>3,4-bis [2- (4- [7-acryloyloxyheptyloxy] phenyl) pyridin-5-ylcarbonyloxy] benzonitrile;</li><li>3,4-bis [2- (4- [8-acryloyloxyoctyloxy] phenyl) pyridin-5-ylcarbonyloxy] benzonitrile;</li><li>3,4-bis [2- (4- [9-acryloyloxynonyloxy] phenyl) pyridin-5-ylcarbonyloxy] benzonitrile;</li><li>3,4-bis [2- (4- [10-acryloyloxydecyloxy] phenyl) pyridin-5-ylcarbonyloxy] benzonitrile;</li><li>3,4-bis [2- (4- [11-acryloyloxyundecyloxy] phenyl) pyridin-5-ylcarbonyloxy] benzonitrile;</li><li>3,4-bis [2- (4- [12-acryloyloxydodecyloxy] phenyl) pyridin-5-ylcarbonyloxy] benzonitrile;</li><li>Methyl 3,4-bis [2- (4- [3-acryloyloxypropyloxy] phenyl) pyridin-5-ylcarbonyloxy] benzoic acid ester;</li><li>Ethyl 3,4-bis [2- (4- [3-acryloyloxypropyloxy] phenyl) pyridin-5-ylcarbonyloxy] benzoic acid ester;</li><li>Propyl 3,4-bis [2- (4- [3-acryloyloxypropyloxy] phenyl) pyridin-5-ylcarbonyloxy] benzoic acid ester;</li><li>3,4-bis [2- (4- [3-acryloyloxypropyloxy] phenyl) pyridin-5-ylcarbonyloxy] toluene;</li><li>3,4-bis [2- (4- [3-acryloyloxypropyloxy] phenyl) pyridin-5-ylcarbonyloxy] -1-ethylbenzene;</li><li>3,4-bis [2- (4- [3-acryloyloxypropyloxy] phenyl) pyridin-5-ylcarbonyloxy] -1-propylbenzene.</li></ul>
Example 5
A solution of 1.1 g of 4- (5- [8-acryloyloxyoctyloxy] pyrimidin-2-yl) benzyl alcohol, 0.2 g of 3,4-dihydroxybenzonitrile, 0.5 g of diethyl azodicarboxylate, 0.7 g of triphenylphosphine and 50 ml of tetrahydrofuran is stirred overnight and then concentrated. The residue is slurried with 50 ml of hot hexane and filtered. The filtrate is concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) and recrystallization twice from the fractions according to thin layer chromatography from a cyclohexane / ethyl acetate mixture (vol. 8: 2) gives 1.2 g of 3,4-bis ([4- (5- [8-acryloyloxyoctyloxy] pyrimidine-2 -yl) phenyl] methoxy) benzonitrile.
The 4- (5- [8-acryloyloxyoctyloxy] pyrimidin-2-yl) benzyl alcohol used as the starting material is prepared as follows:<ul id="ul0009" list-style="none" compact="compact"><li>(a). A mixture of 0.3 g sodium borohydride and 30 ml water is added dropwise at 0<sup>O</sup>C with a solution of 1.6 g of 4- (5- [8-acryloyloxyoctyloxy] pyrimidin-2-yl) benzaldehyde in 100 ml of dioxane. The reaction mixture is at 0 for 60 minutes<sup>O</sup>C and then stirred for 10 minutes at room temperature, poured onto 100 ml dichloromethane and washed twice with 100 ml water. The aqueous phases are combined, extracted twice with 50 ml dichloromethane each time. The organic phases are combined, washed twice with 100 ml of water each time, dried over magnesium sulfate, the suspension is filtered and the filtrate is concentrated. This gives 1.1 g of 4- (5- [8-acryloyloxyoctyloxy] pynmidin-2-yl) benzyl alcohol.</li></ul>
The following connections can be made in an analogous manner:<ul id="ul0010" list-style="none" compact="compact"><li>3,4-bis ([4- (5- [3-Acryloyloxypropyloxy] pyrimidin-2-yl) phenyl] methoxy) benzonitrile;</li><li>3,4-bis ([4- (5- [4-acryloyloxybutoxy] pyrimidin-2-yl) phenyl] methoxy) benzonitrile;</li><li>3,4-bis ([4- (5- [5-acryloyloxypentyloxy] pyrimidin-2-yl) phenyl] methoxy) benzonitrile;</li><li>3,4-bis ([4- (5- [6-acryloyloxyhexyloxy] pyrimidin-2-yl) phenyl] methoxy) benzonitrile;</li><li>3,4-bis ([4- (5- [7-acryloyloxyheptyloxy] pyrimidin-2-yl) phenyl] methoxy) benzonitrile;</li><li>3,4-bis ([4- (5- [8-acryloyloxyoctyloxy] pyrimidin-2-yl) phenyl] methoxy) benzonitrile;</li><li>3,4-bis ([4- (5- [9-acryloyloxynonyloxy] pyrimidin-2-yl) phenyl] methoxy) benzonitrile;</li><li>3,4-bis ([4- (5- [10-Acryloyloxydecyloxy] pyrimidin-2-yl) phenyl] methoxy) benzonitrile;</li><li>3,4-bis ([4- (5- [11-Acryloyloxyundecyloxy] pyrimidin-2-yl) phenyl] methoxy) benzonitrile;</li><li>3,4-bis ([4- (5- [12-Acryloyloxydodecyloxy] pyrimidin-2-yl) phenyl] methoxy) benzonitrile;</li><li>Methyl 3,4-bis ([4- (5- [12-acryloyloxydodecyloxy] pyrimidin-2-yl) phenyl] methoxy) benzoic acid ester;</li><li>Ethyl 3,4-bis ([4- (5- [12-acryloyloxydodecyloxy] pyrimidin-2-yl) phenyl] methoxy) benzoic acid ester;</li><li>Propyl 3,4-bis ([4- (5- [12-acryloyloxydodecyloxy] pyrimidin-2-yl) phenyl] methoxy) benzoic acid ester;</li><li>3,4-bis ([4- (5- [12-Acryloyloxydodecyloxy] pyrimidin-2-yl) phenyl] methoxy) toluene;</li><li>3,4-bis ([4- (5- [12-Acryloyloxydodecyloxy] pyrimidin-2-yl) phenyl] methoxy) -1-ethylbenzene;</li><li>3,4-bis ([4- (5- [12-Acryloyloxydodecyloxy] pyrimidin-2-yl) phenyl] methoxy) -1-propylbenzene;</li><li>3,4-bis ([4- (5- [8-acryloyloxyoctyloxy] pyridin-2-yl) phenyl] methoxy) benzonitrile;</li><li>3,4-bis ([2- (4- [3-acryloyloxypropyloxy] phenyl) pyridin-5-yl] methoxy) benzonitrile;</li><li>3,4-bis ([2- (4- [4-acryloyloxybutyloxy] phenyl) pyridin-5-yl] methoxy) benzonitrile;</li><li>3,4-bis ([2- (4- [5-acryloyloxypentyloxy] phenyl) pyridin-5-yl] methoxy) benzonitrile;</li><li>3,4-bis ([2- (4- [6-acryloyloxyhexyloxy] phenyl) pyridin-5-yl] methoxy) benzonitrile;</li><li>3,4-bis ([2- (4 [7-acryloyloxyheptyloxy] phenyl) pyridin-5-yl] methoxy) benzonitrile;</li><li>3,4-bis ([2- (4- [8-acryloyloxyoctyloxy] phenyl) pyridin-5-yl] methoxy) benzonitrile;</li><li>3,4-bis ([2- (4- [9-acryloyloxynonyloxy] phenyl) pyridin-5-yl] methoxy) benzonitrile;</li><li>3,4-bis ([2- (4- [10-acryloyloxydecyloxy] phenyl) pyridin-5-yl] methoxy) benzonitrile;</li><li>3,4-bis ([2- (4- [11-acryloyloxyundecyloxy] phenyl) pyridin-5-yl] methoxy) benzonitrile;</li><li>3,4-bis ([2- (4- [12-acryloyloxydodecyloxy] phenyl) pyridin-5-yl] methoxy) benzonitrile;</li><li>Methyl 3,4-bis ([2- (4- [8-acryloyloxyoctyloxy] phenyl) pyridin-5-yl] methoxy) benzoic acid ester;</li><li>Ethyl 3,4-bis ([2- (4- [8-acryloyloxyoctyloxy] phenyl) pyridin-5-yl] methoxy) benzoic acid ester;</li><li>Propyl 3,4-bis ([2- (4- [8-acryloyloxyoctyloxy] phenyl) pyridin-5-yl] methoxy) benzoic acid ester;</li><li>3,4-bis ([2- (4- [8-acryloyloxyoctyloxy] phenyl) pyridin-5-yl] methoxy) toluene;</li><li>3,4-bis ([2- (4- [8-acryloyloxyoctyloxy] phenyl) pyridin-5-yl] methoxy) -1-ethylbenzene;</li><li>3,4-bis ([2- (4- [8-acryloyloxyoctyloxy] phenyl) pyridin-5-yl] methoxy) -1-propylbenzene;</li><li>3,4-bis [4- (3-acryloyloxypropyloxy) biphenyl-4'-methoxy] benzonitrile;</li><li>3,4-bis [4- (4-acryloyloxybutyloxy) biphenyl-4'-methoxy] benzonitrile;</li><li>3,4-bis [4- (5-acryloyloxypentyloxy) biphenyl-4'-methoxy] benzonitrile;</li><li>3,4-bis [4- (6-acryloyloxyhexyloxy) biphenyl-4'-methoxy] benzonitrile;</li><li>3,4-bis [4- (7-acryloyloxyheptyloxy) biphenyl-4'-methoxy] benzonitrile;</li><li>3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-methoxy] benzonitrile;</li><li>3,4-bis [4- (9-acryloyloxynonyloxy) biphenyl-4'-methoxy] benzonitrile;</li><li>3,4-bis [4- (10-acryloyloxydecyloxy) biphenyl-4'-methoxy] benzonitrile;</li><li>3,4-bis [4- (11-acryloyloxyundecyloxy) biphenyl-4'-methoxy] benzonitrile;</li><li>3,4-bis [4- (12-acryloyloxydodecyloxy) biphenyl-4'-methoxy] benzonitrile;</li><li>Methyl 3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-methoxy] benzoic acid ester;</li><li>Ethyl 3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-methoxy] benzoic acid ester;</li><li>Propyl 3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-methoxy] benzoic acid ester;</li><li>3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-methoxy] toluene;</li><li>3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-methoxy] -1-ethylbenzene;</li><li>3,4-bis [4- (8-acryloyloxyoctyloxy) biphenyl-4'-methoxy] -1-propylbenzene;</li></ul>
Example 6
A solution of 2.0 g of trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexanecarboxylic acid and 40 ml of tetrahydrofuran is added with stirring at -25<sup>O</sup>C 0.9 g of triethylamine and then 0.5 g of methanesulfochloride were added dropwise. The reaction mixture is 1 hour at -25<sup>O</sup>C stirred, then mixed with 0.28 g of 3,4-dihydroxybenzonitrile and 0.05 g of 4- (dimethylamino) pyridine, stirred overnight at room temperature, poured onto 100 ml of water and then extracted three times with 50 ml of diethyl ether. The combined organic phases are washed twice with 100 ml of water, dried over magnesium sulfate, filtered and then concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) and recrystallization twice from the fractions according to thin layer chromatography from a cyclohexane / ethyl acetate mixture (vol. 8: 2) gives 1.1 g of 3,4-bis [trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexane carbonyloxy] benzonitrile.
The trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexane carboxylic acid used as the starting material is prepared as follows:<ul id="ul0011" list-style="none"><li>(a). A solution of 0.3 ml of 35% hydrochloric acid and 10.0 g of methyl trans-4- (trans-4- [2- (1,3-dioxan-2-yl) ethyl] cyclohexyl) cyclohexane carboxylic acid ester in 100 ml of toloule is stirred overnight at room temperature, poured onto 100 ml of water. The organic phase is separated off, washed twice with 100 ml of water each time, dried over magnesium sulfate, the suspension is filtered and the filtrate is concentrated. This gives 7.4 g of methyl trans-4- (trans-4- [2-formylethyl] cyclohexyl) cyclohexanecarboxylate.</li><li>(b). A mixture of 1.4 g sodium borohydride and 140 ml water is added dropwise at 0<sup>O</sup>C with a solution of 7.4 g of trans-4- (trans-4- [2-formylethyl] cyclohexyl) cyclohexanecarboxylic acid methyl ester in 100 ml of dioxane. The reaction mixture is at 0 for 60 minutes<sup>O</sup>C and then stirred for 10 minutes at room temperature, poured onto 100 ml dichloromethane and washed twice with 100 ml water. The aqueous phases are combined, extracted twice with 50 ml dichloromethane each time. The organic phases are combined, washed twice with 100 ml of water each time, dried over magnesium sulfate, the suspension is filtered and the filtrate is concentrated. This gives 6.3 g of methyl trans-4- (trans-4- [3-hydroxypropyl] cyclohexyl) cyclohexanecarboxylate.</li><li>(c). A solution of 2.0 g of potassium hydroxide, 20 ml of water and 6.3 g of methyl trans-4- (trans-4- [3-hydroxypropyl] cyclohexyl) cyclohexanecarboxylate in 100 ml of ethyl alcohol is heated for 2 hours with gentle reflux to 100 ml Poured water and acidified 25% hydrochloric acid. The precipitate is filtered off, washed in portions with water and dried. This gives 5.2 g of trans-4- (trans-4- [3-hydroxypropyl] cyclohexyl) cyclohexane carboxylic acid.</li><li>(d). A solution of 5.2 g of trans-4- (trans-4- [3-hydroxypropyl] cyclohexyl) cyclohexane carboxylic acid, 1.2 g of acrylic acid and 0.2 g of 4- (dimethylamino) pyridine in 25 ml of dichloromethane is stirred with stirring 5 minutes 4.2 g of N, N '-dicyclohexylcarbodiimide added. The reaction mixture is stirred further overnight, filtered and then concentrated. Chromatography of the residue on silica gel with hexane / ethyl acetate (vol. 8: 2) and recrystallization of the fractions according to thin layer chromatography from ethyl alcohol gives 4.2 g of trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexane carboxylic acid</li></ul>
The following connections can be made in an analogous manner:<ul id="ul0012" list-style="none" compact="compact"><li>3,4-bis [trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexanecarbonyloxy] -2-fluorobenzonitrile;</li><li>3,4-bis [trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexane carbonyloxy] -1-fluorobenzene;</li><li>3,4-bis [trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexane carbonyloxy] -1-chlorobenzene;</li><li>3,4-bis [trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexane carbonyloxy] -1-bromobenzene;</li><li>3,4-bis [trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexane carbonyloxy] toluene;</li><li>3,4-bis [trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexanecarbonyloxy] -1-ethylbenzene;</li><li>3,4-bis [trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexanecarbonyloxy] -1-propylbenzene;</li><li>Methyl 3,4-bis [trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexanecarbonyloxy] benzoic acid ester;</li><li>Ethyl 3,4-bis [trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexanecarbonyloxy] benzoic acid ester;</li><li>Propyl 3,4-bis [trans-4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) cyclohexanecarbonyloxy] benzoic acid ester;</li><li>3,4-bis [trans-4- (2- [trans-4- (3-Acryloyloxypropyl) cyclohexyl] ethyl) cyclohexanecarbonyloxy] benzonitrile;</li><li>Methyl 3,4-bis [trans-4 (2- [trans-4- (3-acryloyloxypropyl) cyclohexyl] ethyl) cyclohexane carbonyloxy] benzoic acid ester;</li><li>Ethyl 3,4-bis [trans-4- (2- [trans-4- (3-acryloyloxypropyl) cyclohexyl] ethyl) cyclohexane carbonyloxy] benzoic acid ester;</li><li>3,4-bis [4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) phenylcarbonyloxy] benzonitrile;</li><li>3,4-bis [4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) phenylcarbonyloxy] -2-fluorobenzonitrile;</li><li>3,4-bis [4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) phenylcarbonyloxy] -1-fluorobenzene;</li><li>3,4-bis [4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) phenylcarbonyloxy] -1-chlorobenzene;</li><li>3,4-bis [4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) phenylcarbonyloxy] -1-bromobenzene;</li><li>3,4-bis [4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) phenylcarbonyloxy] toluene;</li><li>3,4-bis [4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) phenylcarbonyloxy] -1-ethylbenzene;</li><li>3,4-bis [4- (trans-4 [3-acryloyloxypropyl] cyclohexyl) phenylcarbonyloxy] -1-propylbenzene;</li><li>Methyl 3,4-bis [4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) phenylcarbonyloxy] benzoic acid ester;</li><li>Ethyl 3,4-bis [4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) phenylcarbonyloxy] benzoic acid ester;</li><li>Propyl 3,4-bis [4- (trans-4- [3-acryloyloxypropyl] cyclohexyl) phenylcarbonyloxy] benzoic acid ester;</li><li>3,4-bis [4- (2- [trans-4- (3-acryloyloxypropyl) cyclohexyl] ethyl) phenylcarbonyloxy] benzonitrile;</li><li>Methyl 3,4-bis [4- (2- [trans-4- (3-acryloyloxypropyl) cyclohexyl] ethyl) phenylcarbonyloxy] benzoic acid ester;</li><li>Ethyl 3,4-bis [4- (2- [trans-4- (3-acryloyloxypropyl) cyclohexyl] ethyl) phenylcarbonyloxy] benzoic acid ester.</li></ul>
Example 7
To a solution of 1.00 g of acrylic acid 6- [4 '- [trans-4- (2-carboxy-ethyl) cyclohexyl] biphenyl-4-yloxy] hexyl ester, 0.127 g of 3,4-dihydroxybenzonitrile and 0.255 g of 4-dimethylamino pyridine (DMAP) in 30 ml dichloromethane, a solution of 0.433 g N-ethyl-N '- (3-dimethylaminopropycarbodiimide hydrochloride (EDC) in 5 ml dichloromethane is slowly added dropwise at 0 ° C., stirred overnight at room temperature, poured onto 50 ml of water and then extracted three times with 25 ml of diethyl ether each time. The combined organic phases are washed twice with 50 ml of water, dried over magnesium sulfate, filtered and then concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) and recrystallization twice from the fractions according to thin layer chromatography from a cyclohexane / ethyl acetate mixture (vol. 8: 2) gives 0.48 g of 3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propionyloxy] benzonitrile.
The acrylic acid 6- [4 '- [trans-4- (2-carboxy-ethyl) cyclohexyl] biphenyl-4-yloxy] hexyl ester used as the starting material is prepared as follows:<ul id="ul0013" list-style="none"><li>(a). A solution of 5,238 g dihydroxy- [4- (6-hydroxy-hexyloxy) phenyl] borane, 8,206 g trifluoromethanesulfonic acid 4- [trans-4- (2- [1,3] dioxolan-2-yl-ethyl) -cyclohexyl] -phenyl ester, 6,368 g tri-potassium phosphate, 2,619 g potassium bromide and 0,578 g tetrakis-triphenylphosphine) -palladium in 100 ml dioxane is stirred overnight at 85 ° C under nitrogen. After cooling, the solution is diluted with 100 ml of ether, washed three times with 50 ml of water each time, dried over magnesium sulfate, filtered and concentrated. The residue is purified by column chromatography on silica gel using cyclohexam / ethyl acetate (vol. 8: 2). This gives 6.2 g of 6- [4 '- [trans-4- (2- [1,3] dioxolan-2-yl-ethyl) cyclohexyl] biphenyl-4-yloxy] hexan-1-ol.</li><li>(b). To a solution of 6.2 g of 6- [4 '- [trans-4- (2- [1,3] dioxolan-2-yl-ethyl) cyclohexyl] biphenyl-4-yloxy] hexan-1-ol, 1.48 g of acrylic acid and 1.67 g of 4-dimethylamino-pyridine in 50 ml of dichloromethane are added dropwise with stirring at 0 ° -5 ° C. in the course of 5 minutes, 3.38 g of dicyclohexylcarbodiimide in 5 ml of dichloromethane. The reaction mixture is stirred further overnight, filtered and then concentrated. Chromatography of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) gives 5.14 g of acrylic acid 6- [4 '- [trans-4- (2- [1,3] dioxolan-2-yl-ethyl) cyclohexyl] biphenyl-4-yloxy] hexyl ester.</li><li>(c). 5.14 g of acrylic acid 6- [4 '- [trans-4- (2- [1,3] dioxolan-2-yl-ethyl) cyclohexyl] biphenyl-4-yloxy] hexyl ester are dissolved in 100 ml of toluene. After adding 50 ml of formic acid, the mixture is stirred for 4 hours at room temperature. The organic phase is then separated off and the aqueous phase is extracted twice with 50 ml of toluene. The combined organic phases are washed twice with 100 ml of water, dried over magnesium sulfate and concentrated. This gives 4.55 g of acrylic acid 6- [4 '- [trans-4- (3-oxo-propyl) cyclohexyl] biphenyl-4-yloxy] hexyl ester.</li><li>(d). A solution of 4.55 g of acrylic acid 6- [4 '- [trans-4- (3-oxo-propyl) cyclohexyl] biphenyl-4-yloxy] hexyl ester in 100 ml of acetone is added dropwise at 5 ° C. with 20 ml Jones' reagent added. The mixture is stirred at room temperature overnight, poured onto 100 ml of water and extracted three times with 50 ml of ethyl acetate. The organic phases are combined, washed twice with 100 ml of water each time, dried over magnesium sulfate, filtered and evaporated down. This gives 3.86 g of acrylic acid 6- [4 '- [trans-4- (2-carboxy-ethyl) cyclohexyl] biphenyl-4-yloxy] hexyl ester.</li></ul>
The following connections can be made in an analogous manner:<ul id="ul0014" list-style="none"><li>3,4-bis- [3- [trans-4- [4 '- (3-acryloyloxypropyloxy) biphenyl-4-yl] cyclohexyl] propionyloxy] benzonitrile</li><li>3,4-bis- [3- [trans-4- [4 '- (4-acryloyloxy-butyloxy) biphenyl-4-yl] cyclohexyl] propionyloxy] benzonitrile</li><li>3,4-bis- [3- [trans-4- [4 '- (5-acryloyloxypentyloxy) biphenyl-4-yl] cyclohexyl] propionyloxy] benzonitrile</li><li>3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propionyloxy] benzonitrile</li><li>Methyl 3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propionyloxy] benzoic acid ester</li><li>Ethyl 3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propionyloxy] benzoic acid ester</li><li>Propyl 3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propionyloxy] benzoic acid ester</li><li>Octyl 3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) bipheny-4-yl] cyclohexyl] propionyloxy] benzoic acid ester</li><li>3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propionyloxy] benzene</li><li>3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propionyloxy] toluene</li><li>3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4yl] cyclohexyl] propionyloxy] ethylbenzene</li><li>3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propionyloxy] propylbenzene</li></ul>
Example 8
A solution of 1.50 g acrylic acid 6- [4 '- [trans-4- [3- (trifluoromethanesulfonyl) propyl] cyclohexyl] biphenyl-4-yloxy] hexyl ester and 0.155 g 3,4-dihydroxy-benzonitrile in 25 ml of 1,2-dimethoxyethane is added in portions at 0 ° C with 0.286 g of potassium tert-butoxide and then stirred at 85 ° C overnight. The cooled reaction mixture is poured onto 25 ml of water and then extracted three times with 20 ml of ethyl acetate. The combined organic phases are washed twice with 50 ml of water, dried over magnesium sulfate, filtered and concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) and recrystallization of the fractions according to thin-layer chromatography from a cyclohexane / ethyl acetate mixture (vol. 8: 2) gives 1.10 g of 3,4-bis- [ 3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propoxy] benzonitrile.
The acrylic acid 6- [4 '- [trans-4- [3- (trifluoromethanesulfonyl) propyl] cyclohexyl] biphenyl-4-yloxy] hexyl ester used as the starting material is prepared as follows:<ul id="ul0015" list-style="none"><li>(a). A mixture of 0.123 g of sodium borohydride and 10 ml of water is added dropwise at 0 ° C. with a solution of 5.00 g of acrylic acid- 6- [4 '- [trans-4- (3-oxo-propyl] cyclohexyl] biphenyl-4- yloxy] hexyl ester in 50 ml of dioxane, the mixture is then stirred for 1 hour at room temperature, the reaction mixture is poured onto 50 ml of water, the phases are separated and the aqueous phase is extracted twice with 25 ml of ethyl acetate each time. The combined organic phases are washed twice with 50 ml of water, dried over magnesium sulfate, filtered and concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) gives 4.77 g of acrylic acid 6- [4 '- [trans-4- (3-hydroxy-propyl) cyclohexyl] biphenyl-4- yloxy] hexyl ester.</li><li>(b). A solution of 4.77 g of acrylic acid 6- [4 '- [trans-4- (3-hydroxypropyl) cyclohexyl] biphenyl-4-yloxy] hexyl ester and 1.32 g of lutidine in 100 ml of dichloromethane is added at 0 ° C 3.47 g of trifluoromethanesulfonic anhydride dissolved in 10 ml of dichloromethane are added dropwise. The reaction mixture is stirred at 0 ° C. for 90 minutes and then poured onto 100 ml of water and extracted twice with 50 ml of dichloromethane. The combined organic phases are washed twice with 50 ml of water, dried over magnesium sulfate and concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) gives 5.09 g of acrylic acid 6- [4 '- [trans-4- [3- (trifluoromethanesulfonyloxy) propyl] cyclohexyl] biphenyl-4-yloxy ] hexyl ester.</li></ul> The following connections can be made in an analogous manner:<ul id="ul0016" list-style="none"><li>3,4-bis- [3- [trans-4- [4 '- (3-acryloyloxypropyloxy) biphenyl-4-yl] cyclohexyl] propoxy] benzonitrile</li><li>3,4-bis- [3- [trans-4- [4 '- (4-acryloyloxy-butyloxy) biphenyl-4-yl] cyclohexyl] propoxy] benzonitrile</li><li>3,4-bis- [3- [trans-4- [4 '- (5-acryloyloxy-pentyloxy) biphenyl-4-yl] cyclohexyl] propoxy] benzonitrile</li><li>3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propoxy] benzonitrile</li><li>Methyl 3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propoxy] benzoic acid ester</li><li>Ethyl 3,4-bis- [3-trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propoxy] benzoic acid ester</li><li>Propyl 3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propoxy] benzoic acid ester</li><li>Octyl 3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propoxy] benzoic acid ester</li><li>3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexy] propoxy] benzene</li><li>3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propoxy] toluene</li><li>3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl] cyclohexyl] propoxy] ethylbenzene</li><li>3,4-bis- [3- [trans-4- [4 '- (6-acryloyloxyhexyloxy) biphenyl-4-yl) cyclohexyl propoxy] propylbenzene.</li></ul>
Example 9
To a solution of 1.00 g of acrylic acid-4- [2 ', 3'-difluoro-4' '- (3-carboxypropyl) -1.2': 4 ', 1' '- terphenyl-4-yloxy] - butyl ester, 0.123 g of 3,4-dihydroxy-benzonitrile and 0.247 g of 4-dimethylamino-pyridine (DMAP) in 30 ml of dichloromethane slowly become a solution of 0.418 g of N-ethyl-N '- (3-dimethylaminopropyl) at 0 ° C Carbodiimide hydrochloride (EDC) added dropwise in 5 ml of dichloromethane, stirred overnight at room temperature, poured onto 50 ml of water and then extracted three times with 25 ml of diethyl ether each time. The combined organic phases are washed twice with 50 ml of water, dried over magnesium sulfate, filtered and then concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) and recrystallization twice from the fractions according to thin-layer chromatography from a cyclohexane / ethyl acetate mixture (vol. 8: 2) gives 0.39 g of 3,4-bis- [4- [4 '' - (4-acryloyloxy-butoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' '-terphenyl ] butyryloxy] benzonitrile.
The acrylic acid 4- [2 ', 3'-difluoro-4' '- (3-carboxypropyl) -1,2': 4 ', 1' '- terphenyl-4-yloxy] butyl ester used as the starting material becomes manufactured as follows:<ul id="ul0017" list-style="none"><li>(a). To a solution of 5.80 g of 2- [3- (2 ', 3'-difluorobiphenyl-4-yl) propyl] - [1,3] dioxolane in 80 ml of dry tetrahydrofuran under nitrogen is added dropwise at -78 ° C slowly add 13.0 ml of 1.6 molar solution of butyl lithium in hexane and stir for 2.5 hours at this temperature. A solution of 4.32 g of trimethyl borate in 10 ml of tetrahydrofuran is then added dropwise. The solution is allowed to warm up slowly and stirred overnight at room temperature. 50 ml of 10% hydrochloric acid are then added, the mixture is stirred for one hour, the phases are separated and extracted twice with 25 ml of ether. The combined organic phases are washed twice with 50 ml of water, dried over magnesium sulfate, filtered and concentrated. This gives 5.3 g of [2,3-difluoro-4 '- (4-oxo-butyl) bipheny-4-yl] dihydroxy borane.</li><li>(b). A solution of 5.30 g of [2,3-difluoro-4 '- (4-oxobutyl) biphenyl-4-yl] dihydroxy borane, 6.18 g of acrylic acid 3- (bromophenoxy) propyl ester, 0.50 g Tetrakis (triphenylphosphine) palladium and 17.5 ml of 2M sodium carbonate solution in 100 ml of 1,2-dimethoxyethane are stirred overnight at 85 ° C. under nitrogen. After cooling, the solution is diluted with 100 ml of ether, washed three times with 50 ml of water each time, dried over magnesium sulfate, filtered and concentrated. The residue is purified by column chromatography on silica gel with cyclohexane / ethyl acetate (vol. 8: 2). This gives 5.55 g of acrylic acid 4- [2 ', 3'-difluoro-4' '- (4-oxo-butyl) -1.2': 4 ', 1' '-terphenyl-4-yloxy] - butyl ester.</li><li>(c). A solution of 5.55 g of acrylic acid 4- [2 ', 3'-difluoro-4' '- (4-oxo-butyl) -1.2': 4 ', 1' '- terphenyl-4-yloxy] - butyl ester 20 ml of Jones' reagent are added dropwise in 100 ml of acetone at 5 ° C. The mixture is stirred at room temperature overnight, poured onto 100 ml of water, extracted three times with 50 ml of ethyl acetate. The organic phases are combined, washed twice with 100 ml of water each time, dried over magnesium sulfate, filtered and concentrated. This gave 5.29 g of acrylic acid 4- [2 ', 3'-difluoro-4' '- (3-carboxypropyl) -1,2': 4 ', 1' '-terphenyl-4-yloxy] butyl ester.</li></ul>
The following connections can be made in an analogous manner:<ul id="ul0018" list-style="none"><li>3,4-bis- [4- [4 '' - (3-acryloyloxypropoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'teryhenyl] butyryloxy] benzonitrile</li><li>3,4-bis- [4- [4 '' - (5-acryloyloxypentoxy) -2'3'-difluoro-1,1 ': 4', 1 '' terphenyl] butyryloxy] benzonitrile</li><li>3,4-bis- [4- [4 '' - (6-acryloyloxyhexoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'terphenyl] butyryloxy] benzonitrile</li><li>Methyl 3,4-bis- [4- [4 '' - (4-acryloyloxy-butoxy) -2'3'-difluoro-1,1 ': 4'1' 'terphenyl] butyryloxy] benzoic acid ester</li><li>Ethyl 3,4-bis- [4- [4 '' - (4-acryloyloxy-butoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' '- terphenyl] butyryloxy] benzoic acid ester</li><li>Propyl 3,4-bis- [4- [4 '' - (4-acryloyloxy-butoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' '- terphenyl] butyryloxy] benzoic acid ester</li><li>Octyl 3,4-bis- [4- [4 '' - (4-acryloyloxy-butoxy) -2 ', 3'-difluoro-1,1': 4'1 '' terphenyl] butyryloxy] benzoic acid ester</li><li>3,4-bis- [4- [4 '' - (4-acryloyloxybutoxy) -2'3'-difluoro-1,1 ': 4'1' 'terphenyl] butyryloxy] benzene</li><li>3,4-bis- [4- [4 '' - (4-acryloyloxy-butoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'terphenyl] butyryloxy] toluene</li><li>33,4-bis- [4- [4 '' - (4-acryloyloxybutoxy) -2'3'-difluoro-1,1 ': 4'1' 'terphenyl] butyryloxy] ethylbenzene</li><li>3,4-bis- [4- [4 '' - (4-acryloyloxybutoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'terphenyl] butyryloxy] propylbenzene</li></ul>
Example 10
A solution of 1.50 g of acrylic acid 4- [2 ', 3'-difluoro-4' '- [4- (trifluoromethanesulfonyloxy) butyl] -1.2': 4 ', 1' '- terphenyl-4-yloxy] - Butyl ester and 0.156 g of 3,4-dihydroxybenzonitrile in 25 ml of 1,2-dimethoxyethane are mixed with 0.292 g of potassium tert-butoxide in portions at 0 ° C. and then stirred at 85 ° C. overnight. The cooled reaction mixture is poured onto 25 ml of water and then extracted three times with 20 ml of ethyl acetate. The combined organic phases are washed twice with 50 ml of water, dried over magnesium sulfate, filtered and concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) and recrystallization of the fractions according to thin layer chromatography from a cyclohexane / ethyl acetate mixture (vol. 8: 2) gives 0.65 g of 3,4-bis- [ 4- [4- (4-acryloyloxy-butoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'terphenyl] butoxy] benzonitrile.
The acrylic acid 4- [2 ', 3'-difluoro-4' '- [4- (trifluoromethanesulfonyloxy) butyl] -1.2': 4 ', 1' '- terphenyl-4-yloxy] butyl used as the starting material ester is produced as follows:<ul id="ul0019" list-style="none"><li>(a). A mixture of 0.119 g sodium borohydride and 10 ml water is added dropwise at 0 ° C with a solution of 5.00 g acrylic acid 4- [2 ', 3'-difluoro-4' '- (4-oxo-butyl) -1.2' : 4 ', 1' 'terphenyl-4-yloxy] butyl ester in 50 ml of dioxane. The batch is then stirred at room temperature for 1 hour. The reaction mixture is poured onto 50 ml of water, the phases are separated and the aqueous phase is extracted twice with 25 ml of ethyl acetate each time. The combined organic phases are washed twice with 50 ml of water, dried over magnesium sulfate, filtered and concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) gives 4.49 g of acrylic acid 4- [2 ', 3'-difluoro-4' '- (4-hydroxy-butyl) -1.2' : 4 ', 1' 'terphenyl-4-yloxy] butyl ester.</li><li>(b). To a solution of 4.40 g of acrylic acid 4- [2 ', 3'-difluoro-4' '- (4-hydroxy-butyl) -1,2': 4 ', 1' '- terphenyl-4-yloxy] butyl ester and 1.18 g of lutidine in 100 ml of dichloromethane are added dropwise at 0 ° C. 3.10 g of trifluoromethanesulfonic anhydride dissolved in 10 ml of dichloromethane. The reaction mixture is stirred at 0 ° C. for 90 minutes and then poured onto 100 ml of water and extracted twice with 50 ml of dichloromethane. The combined organic phases are washed twice with 50 ml of water, dried over magnesium sulfate and concentrated. Chromatographic purification of the residue on silica gel with cyclohexane / ethyl acetate (vol. 8: 2) gives 4.20 g of acrylic acid- 4- [2 ', 3'-difluoro-4' '- [4- (trifluoromethanesulfonyloxy) butyl] -1.2 ': 4', 1 '' terphenyl-4-yloxy] butyl ester.</li></ul>
The following connections can be made in an analogous manner:<ul id="ul0020" list-style="none"><li>3,4-bis- [4- [4- (3-acryloyloxypropoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'terphenyl] butoxy] benzonitrile</li><li>3,4-bis- [4- [4- (5-acryloyloxypentoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'terphenyl] butoxy] benzonitrile</li><li>3,4-bis- [4- [4- (6-acryloyloxyhexoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'terphenyl] butoxy] benzonitrile</li><li>Methyl 3,4-bis- [4- [4- (4-acryloyloxy-butoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'terphenyl] butoxy] benzoic acid ester</li><li>Ethyl 3,4-bis- [4- [4- (4-acryloyloxy-butoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' '-terphenyl] butoxy] benzoic acid ester</li><li>Propyl 3,4-bis- [4- [4- (4-acryloyloxybutoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'terphenyl] butoxy] benzoic acid ester</li><li>Octyl 3,4-bis- [4- [4- (4-acryloyloxybutoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'terphenyl] butoxy] benzoic acid ester</li><li>3,4-bis- [4- [4- (4-acryloyloxy-butoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'terphenyl] butoxy] benzene</li><li>3,4-bis- [4- [4- (4-acryloyloxy-butoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'terphenyl] butoxy] ethylbenzene</li><li>3,4-bis- [4- [4- (4-acryloyloxy-butoxy) -2 ', 3'-difluoro-1,1': 4 ', 1' 'terphenyl] butoxy] propylbenzene</li></ul>
41 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5 Sheet 6 Sheet 7 Sheet 8 Sheet 9 Sheet 10 Sheet 11 Sheet 12 Sheet 13 Sheet 14 Sheet 15 Sheet 16 Sheet 17 Sheet 18 Sheet 19 Sheet 20 Sheet 21 Sheet 22 Sheet 23 Sheet 24 Sheet 25 Sheet 26 Sheet 27 Sheet 28 Sheet 29 Sheet 30 Sheet 31 Sheet 32 Sheet 33 Sheet 34 Sheet 35 Sheet 36 Sheet 37 Sheet 38 Sheet 39 Sheet 40 Sheet 41
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| WO0005189A1 | Cited by | World Intellectual Property Organization (WIPO) | International search |
| EP1205467A1 | Cited by | European Patent Office (EPO) | Search report |
| US6833421B1 | Cited by | United States of America | Applicant |
| EP1142863A2 | Cited by | European Patent Office (EPO) | Search report |
| EP1070731A1 | Cited by | European Patent Office (EPO) | Search report |
| EP1142863A3 | Cited by | European Patent Office (EPO) | Search report |
| US6582626B2 | Cited by | United States of America | Applicant |
| WO0107495A1 | Cited by | World Intellectual Property Organization (WIPO) | International search |
| SG96663A1 | Cited by | Singapore | Search report |
| EP0331233A2 | Cites | European Patent Office (EPO) | Applicant |
| EP0611981A1 | Cites | European Patent Office (EPO) | Search report |
| EP0700981A2 | Cites | European Patent Office (EPO) | Search report |
| DE4226994A1 | Cites | Germany | Search report |
| WO9516007A1 | Cites | World Intellectual Property Organization (WIPO) | Search report |
| WO9524455A1 | Cites | World Intellectual Property Organization (WIPO) | Search report |
13 members in 8 offices
Priority claims12
| Document | Office | Kind | Date |
|---|---|---|---|
| 222195 | Switzerland | – | |
| 222195 | Switzerland | A | |
| 222195 | Switzerland | A | |
| 96107341 | European Patent Office (EPO) | A | |
| 96107341 | European Patent Office (EPO) | A | |
| 96107341 | European Patent Office (EPO) | – | |
| 96111676 | European Patent Office (EPO) | A | |
| 222195 | – | – | – |
| 96107341 | – | – | – |
| CH19950002221 | – | – | – |
| EP19960107341 | – | – | – |
| EP19960111676 | – | – | – |
Members13
| Document | Office | Kind | |
|---|---|---|---|
| EP0755918A2This record | European Patent Office (EPO) | A2 | |
| JPH0940585A | Japan | A | |
| KR970007493A | Republic of Korea | A | |
| CN1154368A | China | A | |
| EP0755918A3 | European Patent Office (EPO) | A3 | |
| US5800733A | United States of America | A | |
| SG64395A1 | Singapore | A1 | |
| HK1011014A1 | Hong Kong, China | A1 | |
| EP0755918B1 | European Patent Office (EPO) | B1 | |
| DE59605843D1 | Germany | D1 | |
| CN1065265C | China | C | |
| KR100391862B1 | Republic of Korea | B1 | |
| JP4023852B2 | Japan | B2 |
43 legal events, as 4 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Notification of lapseLapsedST | ST | FR | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Nl: lapsed or anulled due to non-payment of the annual feeLapsedNLV4 | NLV4 | EP | |
| Gb: european patent ceased through non-payment of renewal feeCeasedGBPC | GBPC | EP | |
| Patent ceasedCeasedPL | PL | CH | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| European patent in force as of 2002-01-01IF02 | IF02 | GB | |
| No opposition filedOpposition26N | 26N | EP | |
| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Nl: modifications (of names), taken from the european patent patent bulletinNLT2 | NLT2 | EP | |
| Fr: translation filedET | ET | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| Gb: translation of ep patent filed (gb section 77(6)(a)/1977)GBT | GBT | EP | |
| Party data changed (patent owner data changed or rights of a patent transferred)RAP2 | RAP2 | EP | |
| Corresponds to:REF | REF | EP | |
| European patent takes effect as a national patent in ch/liEP | EP | CH | |
| New agentNV | NV | CH | |
| Designated contracting statesAK | AK | EP | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOS IGRAGRAH | GRAH | EP | |
| Despatch of communication of intention to grantORIGINAL CODE: EPIDOS AGRAGRAG | GRAG | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOS IGRAGRAH | GRAH | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Despatch of communication of intention to grantORIGINAL CODE: EPIDOS AGRAGRAG | GRAG | EP | |
| Designated contracting statesAK | AK | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 0755918
- Publication, DOCDB
- 0755918
- Publication, EPODOC
- EP0755918
- Application
- 96111676
- Application, DOCDB
- 96111676
- Application, EPODOC
- EP19960111676
Titles3
- German
- Photovernetzbare flüssigkristalline 1,2-Phenylen-Derivate
- English
- Photocrosslinkable liquid crystalline 1,2-phenylene derivatives
- French
- Dérivés photoréticulables du 1,2-phénylène ayant des propriétés de cristaux liquides
Classification
- CPC, 14
- C07D213/30
- G03F7/004
- C07C69/54
- C07C69/734
- C07C69/92
- C07C69/94
- C07C255/54
- C07C255/55
- C07D239/34
- C09K19/2014
- C09K19/3068
- C09K19/38
- C09K2019/0448
- C07C2601/14
- IPC, 22
- G02F1 13
- C07C13 28
- C07C22 04
- C07C25 18
- C07C43 205
- C07C69 54
- C07C69 618
- C07C69 734
- C07C69 757
- C07C69 773
- C07C69 92
- C07C69 94
- C07C255 54
- C07C255 55
- C07C255 57
- C07D213 30
- C07D239 26
- C07D239 34
- C07D319 06
- C09K19 20
- C09K19 30
- C09K19 38
Designated states7
- Contracting states, 7
- Switzerland
- Germany
- France
- United Kingdom
- Italy
- Liechtenstein
- Netherlands (Kingdom of the)