IL77750A

Insecticidal compositions containing oxazines and/or thiazines,some such novel compounds and process for their preparation

Abstract

This record has no abstract on file.

IL77750A, drawing sheet 1
Sheet 1 of 131

Term

No projected expiry on record.

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2 claims: 2 independent, 0 dependent

  1. 1
    1) Insecticidal compositions containing as active ingredient heterocyclic compounds of the formula (I) wherein n represents 0 or 1, 12 5 6 R , R , R and R independently represent a hydrogen atom or an alkyl group, R 3 and R 4 independently represent a hydrogen atom, a hydroxy group or an alkyl group, ר where n represents 1, then R may form a single bond, together with R$, X represents a sulfur atom, an oxygen atom, ’7 1 R the following groups; -N-R or -CH-R , R 7 represents a hydrogen atom, a halogen atom, a hydroxy group, an alkoxy group, a benzyloxy group, an alkyl group which may be substituted by at least one selected from the class consisting of alkoxy groups, alkylthio groups, a cyano group, halogen atoms, dialkylamino groups and trialkylsilyl, an alkenyl group which may be substituted by a halogen atom, an alkynyl group which may be substituted by a halogen atom, a phenyl group which may be substituted by an alkyl group and/or a halogen atom, a benzyl group which may be substituted by at least one selected from the class consisting of a methyl group, a methoxy group, halogen atoms, halomethyl groups, halomethoxy groups and a nitro group, a formyl group, an alkenylcarbonyl group, an alkylcarbonyl group which may be substituted by at least one selected from the class consisting of alkoxy groups, a phenoxy group, alkylthio groups, and halogen atoms, a benzoyl group which may be substituted by at least one selected from the class consisting of halogen atoms, alkyl groups, halomethyl groups, alcoxy groups, haloalkoxy groups and a nitro group, a benzylcarbonyl group which may be substituted by an alkyl group and/or a halogen atom, an alkoxycarbonyl group which may be substituted by a halogen atom, an alkylthiocarbonyl group, a phenoxycarbonyl group which may be substituted by at least one selected from the class consisting of methyl group, a methoxy group, halomethyl group, halomethoxy groups, halogen atoms and a nitro group, a ,phenylthiocarbonyl group which may be substituted by a halogen atom and/or an alkyl group. 7775Q/2 a benzyloxycarbonyl group, a monoalkyl- or dialkyl-aminocarbonyl group, a phenylaminocarbonyl group which may be substituted, by at least one selected from the class consisting of alkyl groups, haloalkyl groups and halogen atoms, a benzoylaminocarbonyl group which may be substituted by an alkyl group and/or a halogen atom, a phenylsulfonylaminocarbonyl group which may be substituted by an alkyl group and/or a halogen atom, a phenylthio group which may be substituted by an alkyl group and/or a halogen atom, an alkylsulfonyl group which may be substituted by a halogen atom, a phenylsulfonyl group which may be substituted by at least one selected from the class consisting alkyl groups, halogen atoms and an a nitro group, an alkylcarbonylmethyl group, a phenacyl group which maybe substituted by a halogen atom and/or an alkyl group, an organophosphono group, an organothionophosphono group, the ,following groups; -CH^-W or -CO-W, W represents a 5 or 6 membered unsaturated heterocyclic group, containing at least one hetero atom selected from ! the class consisting of an oxygen atom, a sulfur atom ' (as .herein defined) and a nitrogen atom which may be substituted by at least one substituent selected from the ־ 265 77750/2 class consisting of halogen atoms, alkyl groups and haloalkyl groups, R 8 represents a hydrogen atom, an alkyl group, a phenyl group or a benzyl group, Y represents a nitrogen atom or the following ’9 group; =C-R, Q R represents a hydrogen atom, a halogen atom, a hydroxy group, an alkoxy group, a benzyloxy group, an alkyl group which may be substituted by at least one selected from the class consisting of halogen atoms, a hydroxy group, alkoxy groups, alkylthio groups, a cyano group, mono- or dialkylamino groups, alkylcarbonyl groups, alkoxycarbonyl groups and phenoxycarbonyl groups, an alkenyl group which may be substituted by a halogen atom, an alkynyl group, a phenyl group which may be substituted by an alkyl group and/or I a halogen atom, an alkylcarbonyl group which may be substituted by a halogen atom, an alkenylcarbonyl group, a benzoyl group which may be substituted by at least one selected from the class consisting of halogen atoms, alkyl groups and alkoxy groups, an alkoxycarbonyl group which may be substituted by a halogen atom, an alkylthiocarbonyl group, a phenoxycarbonyl group which may be substituted i I i ' k by at least one selected from the class consisting ί of halogen atoms, alkyl groups, alkoxy groups j ! and a nitro group, ׳ a phenylthiocarbonyl group which may be ! substituted by an alkyl group and/or a halogen atom, a phenylthiocarbonyl group which may be substituted by an alkyl group and/or a halogen atom, a benzyloxycarbonyl group, a benzoylaminocarbonyl group which may be substituted by an alkyl group and/or a halogen atom, a phenylsulfonylaminocarbonyl group which may be substituted by an alkyl group and/or a halogen atom, an alkylsulfonylaminocarbonyl group, an alkylthio group, an alkylsulfonyl group which may be substituted by a halogen atom, a phenylthio group which may be substituted by . * an alkyl group and/or a halogen atom, a phenylsulfonyl group which may be substituted by an alkyl group and/or a halogen atom, in addition, R 9 may form a bis-form of the ן| formula (!),via a methylene group,i R represents a hydrogen atom or an alkyl group, and Z represents a saturated or unsaturated 5 or 6 membered heterocyclic group containing at least one hetero! atom selected from the class consisting of an oxygen (as herein defined); atom, a sulfur atom and a nitrogen atonJT whichi . ; I may be substituted by at least one substituent selected from the class consisting of halogen atoms, alkyl groups, haloalkyl groups, a nitro group, a cyano group, alkoxy groups, alkylthio groups, alkylsulfinyl groups, alkylsulfonyl groups, alkenyl groups, a haloalkoxy group, haloalkylthio groups, haloalkenyl groups, alkanoylamino groups, haloalkanoylamino groups, alkoxycarbonyl groups, a thiocyanate group, alkynyl groups, an amino group, alkylamino groups, dialkylamino groups, a carboxy group, a hydroxy group, a mercapto group, cycloalkyl groups, an oxo group, a thioxo group, haloalkenylthio groups, alkoxyalkyl groups, alkoxycarbonylamina groups, a carbamoyl group, alkanoyl groups, alkylaminocarbonyl groups, dialkylaminocarbonyl groups, a formyl group, phenyl groups optionally substituted by a substituent selected from the class consisting of halogen atoms, alkyl groups, halogenoalkyl groups, alkoxy groups, a nitro group and a cyano group, phenoxy groups optionally substituted by the substituent as that shown for the above phenyl groups, and benzyl groups optionally substituted by the same substituent as that shown for the phenyl groups, W9 תיקון provided that where R 1 , R 2 , R^, r\ R 5 and R 6 represent hydrogen 6S העיף atoms simultaneously, X represents ־^H and Y represnts =CH, then Z must not stand for ! ץ חיקי χλ 6$ *PJIJ the Py rid yl group. ו׳. /י י 77750/2 2. Novel heterocyclic compounds of formula I in Claim 1, wherein R, R*, R 2 , R^, r\ r\ R 3 , X. Y, Z and rZare as defined in Claim 1 provided that where r\ R 2 , R 3 , r\ R^ and t represent hydrogen atoms simultaneously, X represents -NH and Y represents =CH, then Z must not stand for the pyridyl group and further provided that in the case of X standing for S and simultaneously n=0, then the residue Z must stand for an optionally substituted 3-pyridyl group. 3) The compounds according to claim 2, wherein n represents 0 or 1, R 1 , R^, r5 and R^ independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R^ and R^ independently represent a hydrogen atom, a hydroxy group or an alkyl group having 1 to 4 carbon 2 1 atoms and when n represents 1, then R may form a single^ bond, together with R 5 , X represents a sulfur atom, an oxygen atom 4, * 7 ’ 8 the following groups; -N-R or -CH-R , R? represents a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, a hydroxy group, an alkoxy group having 1 to 4 carbon atoms, a benzyloxy group, an alkyl group having 1 to 4 carbon atoms which may be substituted by at least one selected from the class consisting <?f alkoxy groups having 1 to 4 carbon atoms, alkylthio groups having 1 to 4 carbon atoms, ., a cyano group, a fluorine atom, a chlorine atom, a bromine atom, a dimethylamino group and trimethylsilyl, an alkenyl group having 2 to 3 carbon atoms which may be substituted by a chlorine atom, an alkynyl group having 2 to 3 carbon atoms, a benzyl group which may be substituted by at least one selected from the class consisting of a methyl group, a methoxy group, a fluorine atom, 4 a calorine atom, a bromine atom and a nitro group, a formyl group, an alkenylcarbonyl group having an alkenyl with 2 to 3 carbon atoms, an alkyl group having 1 to 5 carbon atoms which may be substituted by at least one selected from the class consisting of a methoxy group, a fluorine phenoxy group, adatom, a chlorine atom and a bromine atom, a benzoyl group which may be substituted by at least one selected from the class consisting of a fluorine atom, a chlorine atom, a bromine atom, a methyl group, a trifluoromethyl group, a methoxy group, a difluoromethoxy group, a trifluoromethoxy group and a nitro group, a benzylcarbonyl group which may be substituted by at least one selected from the class consisting of a fluorine atom, a chlorine atom and a bromine atom, an alkoxycarbonyl group having an alkyl with 1 to 4 carbon atoms which may be substituted by a fluorine atom and/or a chlorine atom, an alkylthiocarbonyl group having an alkyl with 1 to 4 carbon atoms, a phenoxycarbonyl group which may be substituted by at least one selected from the class consisting of a methyl group, a fluorine atom, a chlorine atom and a bromine atom, a phenylthiocarbonyl group which may be substituted by at least one selected from the class consisting of a methyl group, a fluorine atom, a chlorine atom and a bromine atom, a benzyloxycarbonyl group, a dimethylaminocarbonyl group,'a phenylaminocarbonyl group which may be substituted by at least one 77750/2 selected from the class consisting of a methyl group, a fluorine atom, a chlorine atom, and a bromine atom, a benzoylaminocarbonyl group which may be substituted by at least one selected from the class consisting of a methyl group, a fluorine atom, a chlorine atom and a bromine atom, a phenylsulfonylaminocarbonyl group which may be substituted by at least one selected from the class consisting of a fluorine atom, a chlorine atom and a bromine atom, a phenyl thio group, an alkylsulfonyl group which may be substituted by a fluorine atom and/or a chlorine atom, a phenylsulfonyl group which may be substituted by at least one selected from the class consisting of a methyl group, a fluorine atom, a chlorine atom, a bromine atom and a nitro group, a methylcarbonylmethyl group, a phenacyl group which may be substituted by a fluorine atom and/or a chlorine atom, an organophosphono group, an organothionophosphono group, the following groups; -CHj-W or -CO-W, W represents a 5 or 6 membered unsaturated heterocyclic:group, containing at least one hetero atom selected from the class consisting of an oxygen atom, a sulfur atom (as herein defined), and a nitrogen atomj which may be substituted by at j i least one substituent selected from the class consisting of a fluorine atom, a chlorine atom, a bromine atom and alkyl groups having 1 to 4 carbon atoms, R represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a phenyl group or a benzyl group, Y represents a nitrogen atom or the following ’9 group;=־C-R , R 8 represents a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, a hydroxy group, an alkoxy group having 1 to 4 carbon atoms, a benzyloxy group, an alkyl group having 1 to 4 carbon atoms which may be substituted by at least One selected from the class consisting of a.fluorine atom, a chlorine atom, a hydroxy group, an alkoxy group having 1 to 2 carbon atoms, alkylthio groups having 1 to 2 carbon atoms, a cyano group, a dimethylamino group, alkylcarbonyl groups having an alkyl with 1 to 2 carbon atoms and alkoxycarbonyl groups having an alkyl with 1 to 2 carbon atoms, an alkenyl group having 2 to 3 carbon atoms, a phenyl group, an alkylcarbonyl group having an alkyl with 1 to 4 carbon atoms which may be substituted by at least one selected from the class consisting of a methoxy group, a chlorine atom and a fluorine atom. an alkenylcarbonyl group having an alkenyl with 2 to 3 carbon atoms, a benzoyl group which may be substituted by at least one selected from the class consisting of a fluorine atom., a chlorine atom, a bromine atom, a methoxy group and a methyl group, an alkoxycarbonyl group which may be substituted by a fluorine atom and/or a chlorine atom, an alkylthiocarbonyl group having an alkyl with 1 to 4 carbon atoms, a phenoxycarbonyl group which may be substituted by at least one selected from the class consisting of a fluorine atom, a chlorine atom, a bromine atom, a methyl group, a methoxy group and a nitro group, a phenylthiocarbonyl group, a benzyloxycarbonyl group, a benzoylaminocarbonyl group which may be substituted by at least one selected from the class consisting of a methyl group, a fluorine atom, a chlorine atom and a bromine atom, a phenylsulfonylaminocarbonyl group which may be substituted by at least one selected from the class consisting of a methyl group, a fluorine atom, a chlorine atom and a bromine atom, an alkylsulfonylaminocarbonyl group having an alkyl with 1 to 4 carbon atoms, an alkylthio group having 1 to 4 carbon atoms. _ 27477750/2 an alkylsulfonyl group which may be substituted by a fluorine atom and/or a chlorine atom, a phenylthio group which may be substituted by at least one selected from the class consisting of a methyl group, a fluorine atom, a chlorine atom and a bromine atom, or a phenylsulfonyl group which may be substituted by at least one selected from the class consisting of a methyl group, a fluorine atom, a chlorine atom and a bromine atom, in addition, R may form a bis-form of the formula (I), via a methylene group, R represents a hydrogen atom or a methyl group, and Z represents a saturated or unsaturated 5 or 6 membered heterocyclic group, containing one to three hetero atoms selected from the class consisting of an oxygen (as herein defined) atom, a sulfur atom and a nitrogen atonjC which may be substituted by at least one substituent selected from the class consisting of a fluorine atom, a chlorine atom, a bromine atom, alkyl groups having 1 to 4 carbon atoms which may be substituted by a fluorine atom and/or a chlorine atom, a nitro group, a cyano group, alkylsulfinyl groups having 1 to 4 carbon atoms, alkylsulfonyl groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms which may be substituted by a fluorine atom and/or a chlorine atom, alkylthio groups haying 1 to 4 carbon atoms which may be substituted a fluorine atom and/or a chlorine atom;alkenyl groups having 2 to 3 carbon atoms which may be substituted by a chlorine atom, an acetamide group which may be substituted by a fluorine atom and/or a chlorine atom, alkoxycarbonyl groups having an alkyl with 1 to 4 carbon atoms, a thiocyanato group, alkynyl groups having 2 to 4 carbon atoms, an amino group, a methylamino group, a dimethylamino group, an acetyl group, a formyl group, a carboxy group, a hydroxy group, a mercapto group, cycloalkyl groups having 3 to 7 carbon atoms, an oxo group, a thioxo group, alkenylthio groups substituted by a fluorine atom, a chlorine atom and/or a bromine atom, alkoxyalkyl groups having 2 to 4 carbon atoms in total, alkylaminocarbonyl groups having an alkyl with 1 to 2 carbon atoms, dialkylaminocarbonyl groups having an alkyl with 1 to 2 carbon atoms, a phenyl group, a phenoxy group and a benzyl group, provided that where r\ R^, R 3 , r\ R^ and R^ represent hydrogen atoms simultaneously, X represents -NH and 77750/2 Y represents ־־CH, then Z must not stand for the pyridyl group and further provided that in the case of X standing for S and simultaneously n=0, then the residue Z must stand for an optionally substituted 3-pyridyl group. ו 4 j3) The compounds according to claim 1 wherein n represents 0 or 1, R 1 , R 2 , R 5 and R 6 independently represent a hydrogen atom or a methyl group, 4 ר R and R independently represent a hydrogen atom or a methyl group, X represents a sulfur atom, an oxygen atom or 1 7 1 8 the following groups -N-R or -CH-R , R 7 represents a hydrogen atom, an alkyl group which may be substituted by at least one selected from the class consisting of a methoxy group, an ethoxy group, a methylthio group, an ethylthio group, a cyano group, a fluorine atom, a chlorine atom and a trimethylsilyl group, an allyl group which may be substituted by a chlorine atom, a propargyl group, a benzyl group which may be substituted by a methyl group and/or a chlorine atom, '־' a formyl group, a vinylcarbonyl group, an alkylcarbonyl group having an alkyl with 1 to 3 carbon atoms which may be substituted by at least one selected from the class consisting of a methoxy group, a phenoxy group and a chlorine atom, a benzoyl group which may be substituted by at least one selected from the class consisting of a chlorine atom, a bromine atom, a methyl group, a trifluoromethyl group, a methoxy group and a nitro group, a benzylcarbonyl group which may be substituted by a chlorine atom, an alkoxycarbonyl group having an alkyl with 1 to 2 carbon atoms which may be substituted by a fluorine atom arid/or a chlorine atom, an alkylthiocarbonyl group having an alkyl with 1 to 2 carbon atoms, a phenoxycarbonyl group which may be substituted by a methyl group and/or a chlorine atom, a phenylthiocarbonyl group which may be substituted by a chlorine atom, a benzyloxycarbonyl group, a dimethylaminocarbonyl group, a phenylaminocarbonyl group, a benzoylaminocarbonyl group, a phenylsulfonylaminocarbonyl group which may be substituted by a methyl group and/or a chlorine atom, a phenylthio group, a methylsulfonyl which may be substituted by a chlorine atom, a phenylsulfonyl group which may be substituted by a methyl gorup, a methylcarbonylmethyl group, a phenacyl group which may be substituted by a chlorine atom, Ο,Ο-diethylthionophosphono group, O-ethyl-5-n-propylthiolophosphono group, the following groups;-CH 2 ־W or -CO-W, W represents a 5 or 6 membered unsaturated heterocyclic;group, containing one or two hetero atoms selected from the class consisting of an oxygen atom, a sulfur atom and a nitrogen atom£ ( a s herein defined) which may be substituted by a fluorine atom, a chlorine atom, a bromine atom and a methyl group, R represents a hydrogen atom, a methyl group, a phenyl group or a benzyl group, Y represents a nitrogen atom or the following ’ 9 group;=C-R , R 9 represents a hydrogen atom, a chlorine atom, a bromine atom, a hydroxy group, a methoxy group, a benzyloxy group, an alkyl group which may be substituted by at least one selected from the class consisting of a fluorine atom, a chlorine atom, a hydroxy group, a methoxy group, a cyano group, a dimethylamino group, an acetyl group and a’methoxycarbonyl group, an allyl group, a phenyl group, an acetyl group which may be substituted by a chlorine atom, a vinylcarbonyl group, an allylcarbonyl group, a benzoyl group, an alkoxycarbonyl group having an alkyl with 1 to 2 carbon atoms which may be substituted by a fluorine atom, n-butylthiocarbonyl group, a phenoxycarbonyl group which may be substituted by a chlorine atom and/or a methyl group, a phenylthiocarbonyl group, a 77750/2 benzyloxycarbonyl group, a benzoylaminocarbonyl group which may be substituted by a chlorine atom, a phenylsulfonylaminocarbonyl group which may be substituted by a methyl group, a methylsulfonylaminocarbonyl group, a propylthio group, a methylsulfonyl group which may be substituted by a fluorine atom and/or a chlorine atom, a phenylthio group which may be substituted by a chlorine atom, or a penylsulfonyl group, in addition, R 9 may form a bis-form Of the formula (I), via a methylene group, R represents a hydrogen or a methyl group, and Z represents a saturated or unsaturated 5 or 6 membered heterocyclic group, containing one to three hetero atoms selected from the class consisting of an oxygen (as herein defined) atom, a sulfur atom and a nitrogen ato^ at least one of which is a nitrogen atom, which may be substituted by at least one substituent selected from the class consisting of a fluorine atom, a chlorine atom, a bromine atom, a methyl group, ן fluoroalkyl groups having 1 to 2 carbon atoms, a methoxy group, a methylthio group, a methylsulfinyl group, a methylsulfonyl group, a nitro group, a cyano group, a trifluoromethoxy group, a trifluoromethylthio group, an ally group, .» an acetamide group, a methoxycarbonyl group, an acetyl group, a formyl group and a carboxyl group, provided that where r\ R 2 , R 3 , R 4 , R 9 and R 8 represent hydrogen atoms simultaneously, X represents -NH and Y represents =CH, then Z must not stand for the pyridyl group, and further provided that in the case of X standing for S and simultaneously n=0, then the residue Z must stand for an optionally substituted 3-pyridyl group. 5) 3-(2-Chloro-5-pyridylmethyl)-2-(nitromethylene)tetrahydro-2H-l,3-thiazine according to claims 2 to 4 which is represented by the following formula: 6) 3-(2-Chlor0-5-pyridylmethyl)-2-(nitromethylene)- thiazolidine according to claims 2 to 4 which is represented by the following formula: 7) 3-(2-Fluoro-5*־pyridylmethyl)-2-(nitromethylene)- tetrahydro-2H-l,3-thiazine according to claims 2 to 4 which is represented by the following formula: 77750/2 g) 3-(2-Fluoro-5-pyridylmethyl)-2-(nitromethylene)thiazolidine according to claims 2 to 4 which is represented by the following formula: r s \ )־CBflO, l-ν' z 9) 3-(2-Bromo-5-pyridylmethyl)-2-(nitromethylene)tetrahydro-2H-l,3-thiazine according to claims 2 to 4 which is represented by the following formula: (^־CHNO, iH ־־Q־ Br
  2. 2
    2)-3 (0ן-Bromo-5-pyridylmethyl)-2-(nitromethylene)thiazolidine according to claims 2 to ,4 which is rspresented by the following formula:« 2 -Q־ b£ 11) 3-(l-(2-chloro-5-pyridyl)ethyl]-2-(nitromethylene)thiazolidine according to claims 2 to 4 which is represented by the following formula: 12) 3-(2-Methyl-5-pyridylmethyl)-2־(nitromethylene)thiazolidine according to claims 2 to 4 which is represented by the following formula: ς>־Η«° 2 CH--yy-CH, . 4 \2Z N !3) 3-(2-Methyl-5-pyridylmethyl)-2-(nitromethylene)tetrahydro-2H-113-thiazine according to claims 2 to 4 which is represented by the following formula: 0־c° 2 ™־ ch,-^Vch 3 14) 3-(2־>Trifluoromethyl-5-pyridylmethyl)-2-(nitromethylene)thiazolidine according to claims 2 to 4 which is represented by the following formula: ־ 284 iAJ 3-(2-Ethyl-5-pyridylmethyl)-2-{nitromethylene)thia2 ‘ 4 zolidine according to claims V to 3 which is represented by the following formula: 16 . 1,5) 3-(3-pyridylmethyl)-2-(nitromethylene)tetrahydro2 4 2H-l,3-thiazine according to claims Δ to J which is represented by the following formula: W) according 1-(5-Pyrazolylmethyl)-2-(nitromethylene)imidazolidine to claims I to 3 4 which is represented by the following formula: /W) methylene)imidazolidine according to claims represented by the following formula: 1-(5-Chloro־l-methyl-3-pyrazolylmethyl)-2-(nitrowhich is H Γ Ν \ > CHN0 2 *-» Cl CH, -pyrazolylmethyl)-2-(nitromethylene)- ( / 2 4 V l-(l-Methyl-4 tetrahydropyrimidine according to claims V to 5/ which is represented by the following formula: H CHNO 2 20 3 \ l-(l-Methyl-4-pyrazolylmethyl)-2-(nitromethylene)imidazolidine according to claims $ to \ which is represented by the following formula: H I /=.N ch 3 J2M 1-(3-Trifluoromethyl-5-isoxazolylmethyl)-2-(nitroa 2 4 methylene)tetrahydropyrimidine according to claims V to J which is represented by the following formula: H chno 2 CH cf 3 ־ 2׳V) l-(3-Methyl-5-isoxazolylmethyl)-2-(nitromethylene) imidazolidine according to claims 1 to ί which is represented by the following formula: * . B C> CHH0 2 I .0־־N ch«4 ־ II 3*י 23 ' ίί) l-(3-Methyl-5-isoxazolylmethyl)-2-(nitromethylene)־'( tetrahydropyrimidine according to claims $ to $ which is represented by the following formula: B CH CHNO 2 . 0-N H 3 l-(5-iso-Oxazolylmethyl)-2-(nitromethylene)imidazolidine according to claims i to j) which is represented by the following fbrmula: H CHN0 2 11) l-(2-Methyl5־-thiazolylmethyl)-2-(nitromethylene)imidazolidine according to claims 1 to 3 ' which is represented by the following’ formula: Η /#) l-{2-Chloro-5-thiazolylmethyl)-2-(nitromethylene) 4.. tetrahydropyrimidine according to claims X to p wnich is represented by the following formula: H chno 2 1¢) l-(2-Trifluoromethyl-5-thiazolylmethyl)-2-(nitro- 2,4 .. methylene)imidazolidine according to claims /1 to i whicn is represented by the following formula: B ί.־<ί z sA CF 3 1-(1,2,5-Thiadiazol-3-ylmethyl)-2-{nitromethylene) 2 4 .. tetrahydropyrimidine according to claims ]/ to X which is represented by the following formula: O =chn02 1-(1,2,3-Thiadiazol-5-ylmethyl)-2-(nitromethylene)־ tetrahydropyrimidine according to claims ί to 3 which is represented by the following formula: H r־N. .N 3Ω l-(2-Methyl-5-thiazolylmethyl)-2-(nitromethylene)tetrahydropyrimidine according to claims 1 to 3 which is represented by the following formula: H C^ CHK0 2 ch 2 CH, צ 31 2¢) l-(2-Chloro-5-thiazolylmethyl)-2-(nitromethylene)2 4- ' imidazolidine according toclaims 4 to & which is represented by the following formula: H chno 2 /TP CH 0 ־( I z s-\ Cl .Thiazolylmethyl)-2-(nitromethylene)tetrahydroclaims J to β 4 which is represented pyrimidine according to by the following’formula: ־ 289 - ¼4 5)-1 ץ -Pyrimidiny!methyl)-2-(nitromethylene)imidazol 1 2 4 idine according to to claims ί to ί which is represented by the following formula: H 1-(2-Methyl-5-pyrmidinylmethyl) -2-(nitromethylene) 2-4., imidazolidine according to claims ZL to 3 which is represented by the following formula: H w l-(2-Pyrazinylmethyl)-2-(nitromethylene)imidazolidine 2 4 according to claims Ϊ to 3 which is represented by the following formula: 1-(5-Methyl-2-pyraz inylmethyl)-2-(nitromethylene)imidazolidine according to claims Ϊ to $ which is represented by the following formula: H C> CBH °2 CH,-(׳ ')-CH, 2 N=/ כ l-(2-Chloro-5-pyrimidinylmethyl)-2-(nitromethylene)tetrahydropyrimidine according to claims 1. to 3 which is represented by the following formula: H O™. ־״Ch /37) l-(2-Chloro-5-pyrimidinylmethyl)-2-(nitromethylene)2 4 t imidazolidine according to claims 1 to 1 which is represented by the following formula: . H f^>CHNO 2 £8) hydropyrimidine according to claims 1 to 3 1-(2-(Chloro-5-pyridylmethyl)-2-(nitroimino)tetra2 4 which is represented by the following formula: 77750/3 1-(2-Chloro-5-pyridyImethyl)-2-(nitroimino) imidazolidine according to claims to β which is represented by the following formula: H ־ h0 ־C> h Q>-C1־A?. תיקיו ?e. העיף 5» 1 (2-chloro-5־pyridy Imethyl) -2- (nitromethylene) 2 4 pyrolidine according to claims Z to 3 which is represented by the following formula: l-(2-chloro-5-thiazolyImethyl)-2-(nitroimino) 2 4 tetrahydropyrimidine according to claims A to /3 which is represented by the following formula: H . Ο** 12 Cl £2) l-(2-chloro-5-pyrimidinylmethyl)-2-(nitroimino) imidazolidine according to claims to which is represented by the following formula: ־chno 2 434 1-(2-chloro-5-pyridyImethyl)-3- (3-pyridyImethyl)2 4 2-(nitromethylene)imidazolidine according to claims V to 3 which is represented by the following formula: 1-(2-chloro-5-pyridyImethyl)-2-(bromonitromethylene) imidazolidine according to claims to 3 which is represented by the following formula: jij5) 1- (2-chloro-5-pyr idy !methyl )-2-(l-nitro-22 oxopentylidene)imidazolidine according to claims 1 to 3 which is represented by the following formula: 4$) Ethyl, nitrof3-(2-chloro-5-pyridylmethyl) 2 4 thiazolidin-2-ylidene) acetate according to claims ϊ to 3׳ which is represented by the following formula: |7) l-acetyl-3-(2-chloro-5-pyridylmethyl)2 4 2-(nitroimino)imidazolidine according to claims X to 3 which is represented by the following formula: 18) N-phenylsulfonyl, nitro(1-(2-chloro-5-pyridylmethyl)imidazolidin-2-ylidene]acetamide according to claims /to / which is represented by the following formula: 32)־-chloro-5-pyridy!methyl)-2-(nitroimino) 2 4 thiazolidine according to claims 1 to צ which is represented by the following formula: ־N-NO 2 Process for the preparation of novel heterocyclic compounds of the formula (la) R 9 NO 2 NO wherein n represents 0 or 1, R 1 , R 2 , R 5 and R 6 independently represent a 3 4 hydrogen atom or an alkyl group, R and R independently represent a hydrogen atom, a hydroxy group or an alkyl group, where n represents 1, then R may form a 5 single bond together with R , X^represents a sulfur atom, an oxygen atom, י in the following groups;-N-R , !^represents a hydrogen atom, a halogen atom, a hydroxy group, an alkoxy group, a benzyloxy group, an alkyl group which may be substituted by at least one selected from the class consisting of alkoxy groups, alkylthio groups, a cyano group, halogen atoms, dialkylamino groups and trialkylsilyl, an alkenyl group which may be substituted by a halogen atom, an alkynyl group which may be substituted by a halogen atom, a phenyl group which may be substituted by an alkyl group and/or a halogen atom, a benzyl group which may be substituted by at least one selected from the class consisting of a methyl group, a methoxy group, halogen atoms, halomethyl groups, halomethoxy groups and a nitro group, a formyl group, a phenylthio group which may be substituted by an alkyl group and/or a halogen atom. 77750/2 an alkylcarbonylmethyl group, a phenacyl group which may be substituted by a halogen atom and/or an alkyl group, the following group ;-CH 2 -W, W represents a 5 or 6 membered.unsaturated heterocyclic! i group, contain.!ng at least one hetero atom selected from the class consisting of an oxygen atom, a sulfur atom (as herein defined) | and a nitrogen atonj( which may be substituted by at ן least one substituent selected from the____ ' class consisting of halogen atoms, alkyl groups and haloalky1 groups, R 9 represents a hydrogen atom, a halogen atom, a hydroxy group, an alkoxy group, a benzyloxy group, an alkyl group which may be substituted by at least one selected from the class consisting of halogen atoms, a hydroxy group, alkoxy groups, alkylthio groups, a cyano group, mono- or dialkylamino groups, alkylcarbonyl groups, alkoxycarbonyl groups and phenoxycarbonyl groups, an alkenyl group which may be substituted by a halogen atom, an alkynyl group, a phenyl group which may be substituted by an alkyl group and/or a halogen atom, an alkylcarbonyl group which may be substituted by a halogen atom, an alkenylcarbonyl group, a benzoyl group which may be substituted by at least one selected from the class consisting of halogen atoms, alkyl groups and alkoxy groups, an alkoxycarbonyl group which may be substituted by a halogen atom, an alkylthiocarbonyl group, a phenoxycarbonyl group which may be substituted by at least one selected from the class consisting of halogen atoms, alkyl groups, alkoxy groups and a nitro group, a phenylthiocarbonyl group which may be substituted by an alkyl group and/or a halogen atom, a phenylthiocarbonyl group which may be substituted by an alkyl group and/or a halogen atom, a benzyloxycarbonyl group, a benzoylaminocarbonyl.group which may be substituted by an alkyl group and/or a halogen atom, a phenylsulfonylaminocarbonyl group which may be substituted by an alkyl group and/or a halogen atom, an alkylsulfonylami'nocarbonyl group, an alkylthio group, an alkylsulfonyl group which may be substituted by a halogen- atom, a phenylthio group which may be substituted by an alkyl group and/or a halogen atom, a phenylsulfonyl group which may be substituted by an alkyl group and/or a halogen atom, a in addition, R may form a bis-form of the formula (I), via a methylene group. 77750/2 R represents a hydrogen atom or an alkyl group, and Z represents a saturated or unsaturated 5 or 6 membered heterocyclic group, containing at least one hetero atom selected from the class consisting of an oxygen atom, a sulfur atom and a (as herein defined) nitrogen atom/ which may be substituted by at least one substituent selected from the class consisting of halogen atoms, alkyl groups, haloalkyl groups, a nitro group, a cyano group, alkoxy groups, alkylthio groups, alkylsulfinyl groups, alkylsulfonyl groups, alkenyl groups, a haloalkoxy group, haloalkylthio groups, haloalkenyl groups, alkanoylamino groups, haloalkanoylamino groups, alkoxycarbonyl groups, a thiocyanate group, alkynyl groups, an amino group, alkylamino groups, dialkylamino groups, a carboxy group, a hydroxy group, a mercapto group, cycloalkyl groups, an oxo group, a thioxo group, haloalkenylthio groups, alkoxyalkyl groups, alkoxycarbonylamino groups, a carbamoyl group, alkanoyl groups, alkylaminocarbonyl groups, dialkylaminocarbonyl groups, a formyl group, phenyl groups optionally substituted by a substituent selected from the class consisting of halogen atoms, alkyl groups, halogenoalkyl groups, alkoxy groups, a nitro group and a cyano group, phenoxy groups optionally substituted by the substituent as that shown for the above phenyl groups, and benzyl groups optionally substituted by the same substituent as that shown for the phenyl groups, and benzyl . groups optionally substituted by the same substituent as that shown for the aryl gorups, provided that where r\ R 2 , R 3 ,׳R 4 , R 3 and R 6 represent hydrogen atoms simultaneouly, 1 ’ 9 X represents -NH and R represents a hydrogen * atom, then Z must not stand for the pyridyl group, and further provided that in the case of X standing for S and simultaneously n=0, then the residue Z must stand for an optionally substituted 3-pyridyl group,. , characterized in that (a) the compounds of the formula (II) R R 5 R 4 R Z-CH-NH—C ׳ (C)־-—C X^H (H) 1 י . Πi R 6 R 3 R wherein n, R^, R 2 , R 3 , R 4 , R 3 , R 3 , R, X 1 and Z have the same meanings as stated above, are reacted with the compounds of the formula (III) 1 R'-S. R 9 J,C־C-NO 2 (III) R’-r wherein R' represents a lower alkyl or a benzyl group, or the two R's may form a ring, together with two sulfur atoms to which they are a bonded .and R has the same meaning as stated above, if appropriate, in the presence of inert solvents, __________________________________ (b) the compounds of the above formula (II) are reacted with the compounds of the formula (IV) R (Hal) 0 C=C-NO״ (IV) M 4« wherein Hal represents a halogen atom and R represents a hydrogen atom, a halogen atom or a lower alkyl group, if appropriate, in the presence of inert solvents and in the presence of acid acceptors, or (c) the compounds of the above formula (II) are reacted with the compounds of the formula (V) R (Hal) 3 CCH-NO 2 (V) wherein Hal and R have the same meanings .! as stated above, if appropriate, in the presence of inert solvents and in the presence of acid acceptors. 5V) Process for the preparation of novel hetero cyclic compounds of the formula (Ib) R Z-CH R \ Rx , R 1 1 n-no 2 wherein n represents 0 or 1, R 1 , R 2 , R 5 and R 6 independently represent a 3 ’ 4 hydrogen atom or an alkyl group, R and R independently represent a hydrogen atom, a hydroxy group or an alkyl group, where n represents 1, then R may form a single bond together with R , X^represents a sulfur atom, an oxygen atom, the following group ן -N-R 1 ®, R^represents a hydrogen atom, a halogen atom, a hydroxy group, an alkoxy group, a benzyloxy group, an alkyl group which may be substituted by at least one selected from the class consisting of alkoxy groups, alkylthio groups, a cyano group, halogen atoms, dialkylamino groups and trialkylsilyl, an alkenyl group which nay be substituted by a halogen atom, an alkynyl group which may be substituted by a halogen atom, a phenyl _ 302 77750/2 group which may be substituted by an alkyl group and/or a halogen atom, a benzyl group which may be substituted by at least one selected from the class consisting of a methyl group, a methoxy group, halogen atoms, halomethyl groups, halomethoxy groups and a nitro group, a formyl group, a phenylthio group which may be substituted by an alkyl group and/or a halogen atom, an alkylcarbonylmethyl group, a phenacyl group which may be substituted by a halogen atom and/or an alkyl group, the following group ;-CH 2 »W, ןץ represents a 5 to 6 membered heterocyclic group, containing at least one hetero atom selected from the class consisting of an oxygen atom, a (as herein defined) sulfur atom and a nitrogen aton^ which may be substituted by at least one selected from the class consisting of halogen atoms, alkyl groups and haloalkyl groups, R represents a hydrogen atom or an alkyl group, and Z represents a saturated or unsaturated 5 or 6 membered heterocyclic group, containing at least one hetero atom selected from the class consisting of an oxygen atom, a sulfur atom and a (as hgrein defined) nitrogen atony, which may be substituted by at least one substituent selected from the class consisting of halogen atoms, alkyl groups, haloalkyl groups, a nitro group, a cyano group, alkoxy groups, alkylthio groups, alkylsulfinyl groups, 77750/2 alkylsulfonyl groups, alkenyl groups, a haloalkoxy group, haloalkylthio groups, haloalkenyl groups, alkanoylamino groups, haloalkanoylamino groups, alkoxycarbonyl groups, a thiocyanate group, alkynyl groups, an amino group, alkylamino groups, Hi ηIky1nmino groups, a carboxy group, a hydroxy group, a mercapto group, cycloalkyl groups, an oxo group, a thioxo group, haloalkenylthio groups, alkoxyalkyl groups, alkoxycarbonylamino groups, a carbamoyl group, alkanoyl groups, alkylaminocarbohyl groups, dialkylaminocarbonyl groups, a formyl group, phenyl groups optionally substituted by a substituent selected from the class consisting of halogen atoms, alkyl groups, halogenoalkyl groups, alkoxy groups, a nitro group and a cyano group, phenoxy groups optionally substituted by the substituent as that shown for the above phenyl groups, and benzyl groups optionally substituted by the same substituent as that shown for the phenyl groups, characterized in that the compounds of the formula (II) R R 5 R 4 R 2 :-CH-NH—C---(C>— C--X X H (XI) • 1 n ן R 6 R 3 R 1 wherein n, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R, X 1 and Z have the same meanings as stated above, are reacted with nitrognanidine of the following formula h 2 n^ ?C-NH-NO , if appropriate, in the presence of inert solvents. Process for the preparation of novel heterocyclic compounds of the formula (Ic) R 2 N-NO, ־ 305 wherein n represents 0 or 1, R 1 , R 2 , R 5 and R 6 independently represent a 3 4 hydrogen atom or an alkyl group, R and R . independently represent a hydrogen atom, a hydroxy group or an alkyl group, where n represents 1, then R may form a single bond together with R 9 , X represents a sulfur atom, an oxygen atom, ’7 1 8 the following groups;-N-R or -CH-R , R? represents a hydrogen atom, a halogen atom, a hydroxy group, an alkoxy group, a benzyloxy group, an alkyl group which may be substituted by at least one selected from the class consisting of alkoxy groups, alkylthio groups, a cyano group, halogen atoms, dialkylamino groups and trialkylsilyl, an alkenyl group which may be substituted by a halogen atom, an alkynyl group which may be substituted by a halogen atom, a phenyl group which may be substituted by an alkyl group and/or a halogen atom, a benzyl group which may be substituted by at least one selected from the class consisting of a methyl group, a methoxy group, halogen atoms, halomethyl groups, halomethoxy groups and i. nitro group, a formyl group, an alkenylcarbonyl group, an alkylcarbonyl group which may be substituted by at least one selected from the class consisting of alkoxy groups, a phenoxy group, alkylthio groups, and halogen atoms, a benzoyl group which may be substituted by at least one selected from the class consisting of halogen atoms, alkyl groups, halomethyl groups, alkoxy groups, haloalkoxy groups and a nitro group, a benzylcarbonyl group which may be substituted by an alkyl group and/or a halogen atom, an alkoxycarbonyl group which may be substituted by a halogen atom, an alkylthiocarbonyl group, a phenoxycarbonyl group which may be substituted by at least one selected from the class consisting of methyl group, a methoxy group, halomethyl group, halomethoxy groups, halogen atoms and a nitro group, a phenylthiocarbonyl group which may be substituted by a halogen atom and/or an alkyl group, a benzyloxycarbonyl group, a monoalkyl- or dialky1-aminocarbonyl group, a phenylaminocarbonyl group which may be substituted by at least one selected from the class consisting of alkyl groups, haloalkyl groups and halogen atoms, a benzoylaminocarbonyl group which may be substituted by an alkyl group and/or a halogen atom, a phenylsulfonylaminocarbonyl group ;which may be substituted by an alkyl group and/or a halogen 77750/2 atom, a phenylthio group which may be substituted by an alkyl group and/or a halogen atom, an alkylsulfonyl group which may be substituted by a halogen atom, a phenylsulfonyl group which may be substituted by at least one selected from the class consisting alkyl groups, halogen atoms and an a nitro group, an alkylcarbonylmethyl group, a phenacyl group which may be substituted by a halogen atom and/or an alkyl group, an organophosphono group, an organothionophosphono group, the following groups;-CH 2 ־W or -CO-W, W represents a 5 or 6 membered unsaturated heterocyclic group, containing at least one hetero atom selected from the class consisting of an oxygen atom, a sulfur atom (as herein defined) . . , . j and a nitrogen atomj, which may be substituted by at ן least one substituent selected from the .. J class consisting of halogen atoms, alkyl groups and haloalkyl groups, Q R represents a hydrogen atom, an alkyl group, an aryl group or a benzyl group, R represents a hydrogen atom or an alkyl group, and Z represents a saturated or unsaturated 5 or 6 membered heterocyclic group, containing at least one hetero atom selected from the class consisting of an oxygen (as hereiiudefined) atom, a sulfur atom and a nitrogen atony, which may be! substituted by at least one substituent selected from the / / /ου/z class consisting of halogen atoms, alkyl groups, haloalkyl groups, a nitro group, a cyano group, alkoxy groups, alkylthio groups, alkylsulfinyl groups, alkylsulfonyl groups, alkenyl groups, a haloalkoxy group, haloalkylthio groups, haloalkenyl groups, alkanoylamino groups, haloalkanoylamino groups, alkoxycarbonyl groups, a thiocyanate group, alkynyl groups, an amino group, alkylamino groups, dialkylamino groups, a carboxy group, a hydroxy group, a mercapto group, cycloalkyl groups, an oxo group, a thioxo group, haloalkenylthio groups, alkoxyalkyl groups, alkoxycarbonylamino groups, a carbamoyl group, alkanoyl groups, alkylaminocarbonyl groups, dialkylaminocarbonyl groups, a formyl group, phenyl groups optionally substituted by a substituent selected from the class consisting of halogen atoms, alkyl groups, halogenoalkyl groups, alkoxy groups, a nitro group and a cyano group, phenoxy groups optionally substituted by the substituent as that shown for the above phenyl groups, and benzyl groups optionally substituted by the same substituent as that shown for the phenyl groups, I the compounds of the formula (VI) characterized in that NH (VI) wherein n, R 1 , R 2 , R 2 , r\ R®, r 8 , X, R and 2 have the same meanings as stated above, are reacted with fuming nitric acid, if appropriate, in the presence of inert solvent. $3iy Process for the preparation of novel heterocyclic compounds of the formula (I) (1) 310 wherein n represents 0 or 1, r\ R 2 , R 5 and R 6 independently represent a 3 4 hydrogen atom or an alkyl group, R and R independently represent a hydrogen atom, a hydroxy group or an alkyl group, where n represents 1, then R may form a single bond together with R 9 , X represents a sulfur atom, an oxygen atom, • 7 ’ 8 the following groups? -N-R or -CH-R , R 7 represents a hydrogen atom, a halogen atom, a hydroxy group, an alkoxy group, a benzyloxy group, an alkyl group which may be substituted by at least one selected from the class consisting of alkoxy groups, alkylthio groups, a cyano group, halogen atoms, dialkylamino groups and trialkylsilyl, an alkenyl group which may be substituted by a halogen atom, an alkynyl group which may be substituted by a halogen atom, a phenyl group which may be substituted by an alkyl group and/or a halogen atom, a benzyl, group which may be substituted by at least one selected from the class consisting of a methyl group, a methoxy group, halogen atoms, halomethyl groups, halomethoxy groups and a nitro group, a formyl group, an alkenylcarbonyl group, an alkylcarbonyl group which may be substituted by at least one selected ־ 311 from the class consisting of alkoxy groups, a phenoxy group, alkylthio groups, and halogen atoms, a benzoyl group which may be substituted by at least one selected from the class consisting of halogen atoms, alkyl groups, halomethyl groups, alkoxy groups, haloalkoxy groups and a nitro group, a benzylcarbonyl group which may be substituted by an alkyl group and/or a halogen atom, an alkoxycarbonyl group which may be substituted by a halogen atom, an alkylthiocarbonyl group, a phenoxycarbonyl group which may be substituted by at least one selected from the class consisting of methyl group, a methoxy group, halomethyl group, halomethoxy groups, halogen atoms and a nitro group, a phenylthiocarbonyl group which may be substituted by a halogen atom and/or an alkyl group, a benzyloxycarbonyl group, a monoalkyl- or dialkyl-aminocarbonyl group, a phenylaminocarbonyl group.which may be substituted by at least one selected from the class consisting of alkyl groups, haloalkyl groups and halogen atoms, a benzoylaminocarbonyl group which may be substituted by an alkyl group and/or a halogen atom, a phenylsulfonylaminocarbonyl group which may be substituted by an alkyl group and/or a halogen _ atom, a phenylthio group which may be substituted by an alkyl group and/or a halogen atom, an alkylsulfonyl group which may be substituted by a halogen atom, a phenylsulfonyl group which may be substituted by at least one selected from the class consisting alkyl groups, halogen atoms and an a nitro group, an alkylcarbonylmethyl group, a phenacyl group which may be substituted by a halogen atom and/or an alkyl group, an organophosphono group, an organothionophosphono group, the following groups;-CH 2 ־W or -CO-W, W represents a 5 or 6 membered unsaturated heterocyclic, group, containing at least one hetero atom selected from the class consisting of an oxygen atom, a sulfur atom (as herein defined) i and a nitrogen atomj( which may be substituted by at j least one substituent selected from the ;. — . i class consisting of halogen atoms, alkyl groups and haloalkyl groups, R represents a hydrogen atom, an alkyl group, an aryl group or a benzyl group, Y represents a nitrogen atom or the following '9 group;=c-R , g R represents a hydrogen atom, a halogen atom, a hydroxy group, an alkoxy group, a benzyloxy group, an alkyl group which may be substituted by at least one selected from the class consisting of halogen atoms, a hydroxy group, alkoxy groups, alkylthio groups, a cyano group, mono- or dialkylamino groups, alkylcarbonyl groups, alkoxycarbonyl groups and phenoxycarbonyl groups, an alkenyl group which may be substituted by a halogen atom, an alkynyl group, a phenyl group which may be substituted by an alkyl group and/or a halogen atom, an alkylcarbonyl group which may be substituted by a halogen atom, an alkenylcarbonyl group, a benzoyl group which may be substituted by at least one selected from the class consisting of halogen atoms, alkyl groups and alkoxy groups, an alkoxycarbonyl group which may be substituted by a halogen atom, an alkylthiocarbonyl group, a phenoxycarbonyl group which may be substituted by at least one selected from the class consisting of halogen atoms, alkyl groups, alkoxy groups and a nitro group, a phenylthiocarbonyl group which may be substituted by an alkyl group and/or a halogen atom, a phenylthiocarbonyl group which may be substituted by an alkyl group and/or a halogen atom, a benzyloxycarbonyl group, a benzoyiaminocarbonyl group which may be substituted by an alkyl group and/or a halogen atom, a phenylsulfonylaminocarbonyl group which may 77750/2 be substituted by an alkyl group and/or a halogen atom, an alkylsulfonylaminocarbonyl group, an alkylthio group, an alkylsulfonyl group which may be substituted by a halogen atom, a phenylthio group which may be substituted by an alkyl group and/or a halogen atom, a phenylsulfonyl group which may be substituted by an alkyl group and/or a halogen atom, in addition, R 9 may form a bis-form of the formula (I), via a methylene group, R represents a hydrogen atom or an alkyl group, and Z represents a saturated or unsaturated 5 or 6 membered heterocyclic group, containing at least one hetero atom selected from the class consisting of an oxygen atom, a sulfur atom and a (as herein defined) nitrogen atom/, which may be substituted by at least one substituent selected from the class consisting of halogen atoms, • alkyl groups, haloalkyl groups, a nitro group, a cyano group, alkoxy groups, alkylthio groups, alkylsulfinyl groups, alkylsulfonyl groups, alkenyl groups, a haloalkoxy group, haloalkylthio groups, haloalkenyl groups, alkanoylamino groups, haloalkanoylamino groups, alkoxycarbonyl groups, a thiocyanate group, alkynyl groups, an amino group, alkylamino groups, dialkylamino groups, a carboxy group, a hydroxy group, a mercapto group, cycloalkyl groups, an oxo group, a thioxo group, haloalkenylthio groups, alkoxyalkyl groups, alkoxycarbonylamino groups, a carbamoyl group, alkanoyl groups, alkylaminocarbonyl groups, dialkylaminocarbonyl groups, a formyl group, phenyl groups optionally substituted by a substituent selected from the class consisting of halogen atoms, alkyl groups, halogenoalkyl groups, alkoxy groups, a nitro, group and a cyano group, phenoxy groups optionally substituted by the substituent as that shown for the above phenyl groups, and benzyl groups optionally substituted by the same substituent as that shown for the phenyl groups, and ך A λ c provided that where R , « , R , R’, « and R represent hydrogen atoms simultaneouly, I . X represents -NH and Y represents =CH, then Z must not stand for the pyridyl group. characterized in that the compounds of the formula (VII) (VII) wherein n, R 1 , R 2 . R 3 , R 4 , R 5 , R 6 , X and Y have the same meanings as stated above. are reacted with the compounds of the formula (VIII) R (VIII) wherein R and Z have the same meaning as stated above, and M represents a halogen atom or the following group;-OSO 2 T, T represents a lower alkyl group, a phenyl group or a tolylgroup, if appropriate, in the presence of inert solvents and in the presence of acid acceptors. 55) Process for combating harmful insects, characterized in that heterocyclic compounds of the formula (I) in Claim 1 are allowed to act on harmful insects and/or their habitat. 56) Process for the preparation of insecticidal compositions according to Claim 1, characterized in that heterocyclic compounds of the formula (I) in Claim 1 are mixed with extenders and/or surface-active agents. PC/rrb ξγγ וגיסיו / qJ?,! ץ H 77750/2 a thioxo group, haloalkenylthio groups, alkoxyalkyl groups, alkoxycarbonylamino groups, a carbamoyl group, acyl groups, alkylaminocarbonyl groups, dialkylaminocarbonyl groups, a formyl group, aryl groups optionally substituted by a substituent selected from the class consisting of halogen atoms, alkyl groups, halogenoalkyl groups, alkoxy groups, a nitro group and a cyano group, aryloxy groups optionally substituted by the substituent as that shown for the above aryl groups, and aralkyl groups optionally substituted by the same i . substituent as that shown for the aryl groups, provided that where R^ ׳ R 2 , R 2 , r\ R 3 and R 8 represent hydrogen atoms simultaneouly, I . X represents -NH and Y represents ־CH, then Z must not stand for the pyridyl-group. Some of the compounds of formula (I) are new, namely those in which R, R 3 , R 2 , R 3 , R 4 , R 3 , r6 , X, Y, X and n are as defined above, provided that where R 1 , R 2 , R 3 , R 4 , R 5 and R 6 represent hydrogen atoms simultaneously, X represents -NH and Y represents ־CH, then Z must not stand for the pyridyl group and further provided that in the case of X standing for S and simultaneously n0־, then the residue Z must stand for an optionally substituted 3-pyridyl group. class consisting of a fluorine atom, a chlorine atom, a bromine atom and alkyl groups having 1 to 4 carbon atoms, g R represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a phenyl group or a benzyl group, Y represents a nitrogen atom or the following * 9 group;=C-R , R 9 represents a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, a hydroxy group, an alkoxy group having 1 to 4 carbon atoms, a benzyloxy group, an alkyl group having 1 to 4 carbon atoms which may be substituted by at least one selected from the class consisting of a fluorine atom, a chlorine atom, a hydroxy group, an alkoxy group having 1 to 2 carbon atoms, alkylthio groups having 1 to 2 carbon atoms, a cyano group, a dimethylamino group, alkylcarbonyl groups having an alkyl with 1 to 2 carbon atoms and alkoxycarbonyl groups having an alkyl with 1 to 2 carbon atoms, an alkenyl group having 2 to 3 carbon atoms, a phenyl group, an alkylcarbonyl group having an alkyl with 1 to 4 carbon atoms which may be substituted by at least one selected from the class consisting of a methoxy group, a chlorine atom and a fluorine atom. may be substituted by at least one substituent selected from the class consisting of halogen atoms, alkyl groups, haloalkyl groups, a nitro group, a cyano group, alkoxy groups, alkylthio groups, alkylsulfinyl groups, alkylsulfonyl groups, alkenyl groups, a haloalkoxy group, haloalkylthio groups, haloalkenyl groups, alkanoylamino groups, haloalkanoylamino groups, alkoxycarbonyl groups, a thiocyanate group, alkynyl groups, an amino group, alkylamino groups, dialkylamino groups, a carboxy group, a hydroxy group, a mercapto group, cycloalkyl groups, an oxo group, a thioxo group, haloalkenylthio groups, alkoxyalkyl groups, alkoxycarbonylamino groups, a carbamoyl group, alkanoyl groups, alkylaminocarbonyl groups, dialkylaminocarbonyl groups, a formyl group, phenyl grpups optionally substituted by a substituent selected from the class consisting of halogen atoms, alkyl groups, halogenoalkyl groups, alkoxy groups, a nitro group and a cyano group, phenoxy groups optionally substituted by the substituent as that shown for the above phenyl groups, and benzyl groups optionally substituted by the same substituent as that shown for the phenyl groups. 12)־-Chloro-5-pyridylmethyl)-2-(nitroimino)imidazolidine according to claims $ to J 4 which is represented by the following formula: Η Cl 1-(2-chloro-5-pyridylmethyl)-2-(nitromethylene) 2 4 pyrolidine according to claims 1 to 3 which is represented by the following formula: 41) 1-(2-chloro-5-thiazoly!methyl)-2-(nitroimino) 2 4 tetrahydropyrimidine according to claims !׳ to 3 which is represented by the following formula: H /“ N , Q n ־ n ° 2 Cl