Azolyl methyl oxiranes, their preparation and use as plant-protecting agents.

The present invention relates to new azole compounds, processes for their preparation and fungicides containing them.

European patent publication 94,564 discloses azole compounds, in particular 2- (1,2,4-triazol-1-yl-methyl) -2- (4-chlorophenyl) -3- (2,4-dichlorophenyl) oxirane, their effect as fungicides is not satisfied in all cases.

It has now been found that compounds of the formula<chemistry id="chem0001" num="0001"><img file="EP0196038A2_D0001.tif" /></chemistry>in which RC, -C4-alkyl means naphthyl, bisphenyl or phenyl, where the phenyl radical can be substituted by halogen, nitro, phenoxy, alkyl, alkoxy or haloalkyl each having 1 to 4 carbon atoms,

in the hal fluorine, chlorine or bromine

and in which = Z-: = CH- or = N- and their acid addition and metal salts, which are compatible with plants, have a better fungicidal action, in particular against cereal diseases, than the known azole compounds.

The compounds of the formula I contain chiral centers and are generally obtained in the form of racemates or as diastereomer mixtures of erythro and threo forms. The erythro- and threo-diastereomers can be separated in a conventional manner in the compounds according to the invention, for example on account of their different solubility or by column chromatography, and isolated in pure form. Such enantiomers can be obtained from such uniform pairs of diastereomers using known methods. Both the uniform diastereomers or enantiomers and the mixtures obtained in their synthesis can be used as fungicidal agents.

R means, for example: methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, isobutyl, tert-butyl, 1-naphthyl, 2-naphthyl, p-biphenyl, phenyl, 2-chlorophenyl, 3-chlorophenyl, ₄-Chlorphenyl, 4-fluorophenyl, 4-bromophenyl, 2,₄-Dichlorophenyl, 3,4-dichlorophenyl, 3,5-dichlorophenyl, 3-chloro-4-methylphenyl, 2-methoxyphenyl, 3-methoxyphenyl, 2,4-dimethoxyphenyl, 3,4-dimethoxyphenyl, 4-methoxyphenyl, 4-ethoxyphenyl , 4-tert-butoxyphenyl, 4-methylphenyl, 4-ethylphenyl, 4-isopropylphenyl, 4-tert-butylphenyl, 4-phenoxyphenyl, 3-phenoxyphenyl, 3-nitrophenyl, 4-nitrophenyf, 3-trifluoromethylphenyl, 4-trifluoromethylphenyl and 4 -Phenylsutfonylphenyl.

Acid addition salts are, for example, the hydrochlorides, bromides, sulfates, nitrates, phosphates, oxalates or dodecyl-benzenesulfonates. The effectiveness of the salts is due to the cation, so that the anion is generally not important. The active ingredient salts according to the invention are prepared by reacting the azolylmethyloxiranes (I) with suitable acids.

Metal complexes of the active ingredients I or their salts can, for example. be formed with copper, zinc, tin, manganese, iron, cobalt or nickel by reacting the azolylmethyloxiranes with appropriate metal salts

The compounds of formula I can be prepared, for example, by<ul id="ul0001" list-style="none"><li>a) a corresponding intermediate of formula II<chemistry id="chem0002" num="0002"><img file="EP0196038A2_D0002.tif" /></chemistry>in which L represents a nucleophilically substituted leaving group, with a corresponding azole of the formula III<chemistry id="chem0003" num="0003"><img file="EP0196038A2_D0003.tif" /></chemistry>in which Me means a hydrogen atom or a metal atom</li><li>b) Another way of preparing a compound I is that a compound of formula II, in which R and Hal have the meanings given above and L represents a hydroxy group, with a compound of formula IV<chemistry id="chem0004" num="0004"><img file="EP0196038A2_D0004.tif" /></chemistry>in which Z has the meaning given and Y represents a carbon or a sulfur atom, or</li><li>c) a compound of formula V<chemistry id="chem0005" num="0005"><img file="EP0196038A2_D0005.tif" /></chemistry>in which Z, R and Hal have the meaning given, epoxidized or</li><li>d) a compound of formula VI<chemistry id="chem0006" num="0006"><img file="EP0196038A2_D0006.tif" /></chemistry>in which Z and R have the meaning given, with a compound of the general formula VII<chemistry id="chem0007" num="0007"><img file="EP0196038A2_D0007.tif" /></chemistry>in which Hal has the meaning given, R 'and R which may be the same or different from one another, denote a methyl or phenyl group and n is zero or one, and if appropriate brings the compounds thus obtained into their salts with physiologically tolerable acids transferred</li></ul>

The reaction a) takes place — if Me is a hydrogen atom — optionally in the presence of a solvent or diluent, if appropriate with the addition of an inorganic or organic base and if appropriate with the addition of a reaction accelerator at temperatures between 10 and 120 ° C. The preferred solvents or diluents include ketones such as acetone, methyl ethyl ketone or cyclohexanone, nitriles such as acetonitrile, esters such as ethyl acetate, ethers such as diethyl ether, tetrahydrofuran or dioxane, sulfoxides such as dimethyl sulfoxide, amides such as dimethyl formamide, dimethylacetamide or N-methylpyrrolidone Mixtures.

Suitable bases, which can optionally also be used as acid-binding agents in the reaction, are, for example, alkali metal hydroxide such as lithium, sodium or potassium hydroxide; Alkali carbonates such as sodium or potassium carbonate or sodium and potassium hydrogen carbonate, excesses of 1,2,4-triazole, pyridine or 4-dimethylaminopyridine. However, other common bases can also be used.

Preferred reaction accelerators are metal halides such as sodium iodide or potassium iodide, quaternary ammonium salts such as tetrabutylammonium chloride, bromide or iodide, benzyl-tri-ethylammonium chloride or bromide or crown ethers such as 12-crown-4, 15-crown-5, 18-crown-6, Dibenzo-18-Krone-6 or Dicyclohexano-18-Krone-6 in question.

The reaction is generally carried out at temperatures between 20 and 150 ° C, without pressure or under pressure, continuously or batchwise.

If Me is a metal atom, reaction a) is optionally carried out in the presence of a solvent or diluent and, if appropriate, with the addition of a strong inorganic or organic base at temperatures between -10 and 120.degree. The preferred solvents or diluents include amides such as dimethylformamide, diethylformamide, dimethylacetamide, diethylacetamide, N-methylpyrrolidone, hexamethylphosphorus triamide, sulfoxides such as dimethyl sulfoxide and finally sulfolane.

Suitable bases, which can optionally also be used as acid-binding agents in the reaction, are, for example, alkali hydrides such as lithium, sodium and potassium hydride, alkali amides such as sodium and potassium amide, furthermore sodium or potassium tert-butoxide, lithium, sodium or potassium triphenylmethyl and naphthalene lithium, sodium or potassium.

Polar organic solvents such as nitriles, for example, come as diluents for the reaction b). Acetonitrile, sulfoxides, e.g. dimethyl sulfoxide, formamides, e.g. Dimethylformamide, ketones, e.g. Acetone, ether, for example diethyl ether, tetrahydrofuran and in particular chlorinated hydrocarbons, for example. Methylene chloride and chloroform, in question.

The procedure is generally between 0 and 100 ° C, preferably at 20 to 80 ° C. In the presence of a solvent, it is expedient to work at the boiling point of the particular solvent.

When carrying out process b), 1 mol of the compound of the formula II (L = OH), preferably about 1 mol of carbonyl-bis-1,2,4-triazole (1) or carbonyl-bis-imidazole ( 1) or 1 mol of sulfonyl-1,2,4-friazole- (1) or sulfonyl-bis-imidazole- (1) or produces sulfonyl-bis-1,2,4-triazole- (1) or sulfonyl -bis-imidazole- (1) in situ. To isolate the compounds of the formula I, the solvent is distilled off, the residue is taken up in an organic solvent and washed with water.

The new starting compounds II are obtained by epoxidation of the corresponding olefins IX:<chemistry id="chem0008" num="0008"><img file="EP0196038A2_D0008.tif" /></chemistry>(vgL G. Dittus in Houben-Weyl-Müller, Methods of Organic Chemistry, Georg Thieme Verlag, Stuttgart 1965, Vol. VI, 3, page 385 ff).

The compound IX is prepared by using olefins of the formula X<chemistry id="chem0009" num="0009"><img file="EP0196038A2_D0009.tif" /></chemistry>halogenated or oxidized by known methods in the allyl position

Suitable halogenating reagents are N-chloro and N-bromosuccinimnid in halogenated hydrocarbons such as carbon tetrachloride, trichloroethane or methylene chloride at temperatures between 20 and ₁00 ° C. For allyl oxidation, peresters such as tert-butyl perbenzoate or tert-butyl peracetic acid are used in the presence of a heavy metal salt, for example. Copper-I-chloride or copper-I-bromide. It works in inert solvents at temperatures between 10 and 100 ° C.

The allyl halides or alcohols IX obtained in this way are then converted into the corresponding epoxides II (L = halogen, OH). To this end, the olefins IX are oxidized with peroxycarboxylic acids such as perbenzoic acid, 3-chloroperbenzoic acid,₄-Nitroperbenzoesäure, monoperphthalic acid, peracetic acid, perpropionic acid, permaleic, Monoperbemsteinsäure, Perpelargonsäure or Triffuorperessigsäure in inert solvents, preferably chlorinated hydrocarbons, zBMethy (enchforid, chloroform, carbon tetrachloride, dichloroethane, but optionally also in acetic acid, Essigester, acetone or dimethylformamide, optionally in the presence of a Buffers such as sodium acetate, sodium carbonate, sodium hydrogen carbonate, Disodium hydrogen phosphate, Triton B. One works between 10 and 100 ° C and catalyzes the reaction if necessary, for example. with iodine, sodium tungstate or light Alkaline solutions of hydrogen peroxide (approx. 30%) in methanol, ethanol, acetone or acetonitrile at 25 to 30 ° C as well as alkyl hydroperoxides, e.g. tert-butyl hydroperoxide, with the addition of a catalyst, for example. Sodium tungstate, tungsten acid, molybdenum hexacabonyl or vanadylacetylacetonate. generate in situ.

While the epoxy halides II (L = halogen) thus obtained can be reacted immediately according to process a), the corresponding epoxy alcohols II (L = OH) are either allowed to react with compounds of the formula IV according to process b) or are converted into reactive esters which then be reacted with the compounds III according to process a).

The reactive esters which are reacted with III are prepared by generally known methods - (Houben-Weyl-Müller, Methods of Organic Chemistry, Georg Thieme Verlag, Stuttgart, 1955, Volume 9, pages 388, 663, 671). Examples of such esters are methanesulfonic acid esters, trifluoromethanesulfonic acid esters, 2,2,2-trifluoromethanesulfonic acid esters, nonafluorobutanesulfonic acid esters, 4-methylbenzenesulfonic acid esters, 4-bromobenzenesulfonic acid esters, 4-nitrobenzenesulfonic acid esters or benzenesulfonic acid esters.

The compounds X can be prepared according to generally known processes for olefin synthesis (Houben-Weyl-Müller, Methods of Organic Chemistry, Georg Thieme Verlag, Stuttgart, ₁972 Vol. V, 1b).

Process c) is carried out analogously to the epoxidation of compounds IX.

The starting compounds V are known (DE-OS 25 49 798) and can be prepared by the methods given there.

For process d) according to the invention, known azolyl ketone (eg DE-OS 20 63 857) of the formula VI is reacted with sulfur derivatives of the formula Vif.

The alkylidensulfurans VII (n = 0) and oxysulfurans VII (n = 1) are prepared in situ by known general methods (e.g. HO House, Modem Synthetic Reactions, 2nd Ed., WA Benjamin, Menlo Park 1972, pp. 712 ff) and in inert solvents, preferably ethers such as diethyl ether, tetrahydrofuran or mixtures of both or in hydrocarbons such as pentane, hexane or petroleum ether at temperatures between -78 and 30 ° C. implemented with the azolyl ketones VI.

The compounds of formula 1 thus obtained are isolated by customary methods, optionally purified and, if appropriate, reacted with acids to form salts.

The following examples explain the preparation of the active ingredients.

1. Manufacture of raw materials

Example A

30 g of sodium methylate in 300 ml of dry methanol are introduced into a solution of 194.5 g of 2-chlorobenzyltriphenylphosphonium chloride and 800 ml of dry methanol at 10 ° C., and 60 g of acetophenone are added after half an hour. The reaction solution was boiled under reflux for 3 hours, then the separated salt was filtered off at room temperature and the filtrate was evaporated in vacuo. The residue was separated from triphenylphosphine oxide by digesting the residue with petroleum ether (bp 50 to 70 ° C.) and the solution was evaporated in vacuo.

The backlog was in one ₁ Carbon tetrachloride was added and the mixture was boiled under reflux with 81.7 g of N-bromosuccinimide and 4 g of 2,2'-azoisobutyronitrile. After the reaction had ended, the succinimide was separated off by filtration, the filtrate was evaporated in vacuo and the residue was recrystallized from methanol. 65.5 g (43%) of Z-1- (2-chlorophenyl) -2-phenyl-3-bromopropene-1 were obtained, mp = 78 ° C.

Example B

30th g of Z-1- (2-chorphenyl) -2-phenyl-3-bromopropen-1 was refluxed with 23 g of 3-chloroperoxybenzoic acid in 500 ml of chloroform. After the reaction had ended, the chloroform phase was washed free of acid with aqueous sodium hydrogen carbonate solution and water, dried over sodium sulfate and evaporated in vacuo. 41.3 g (70.2%) of 2-bromomethyl-2-phenyl-3- (2-chlorophenyl) oxirane were obtained from the residue, which was then processed further with triazole according to the following example.

11. Manufacture of the end products

example 1

23 g 1,2,4-triazole and 5 g sodium hydride (80% dispersion in mineral oil) were suspended in 150 ml N, N-dimethylformamide and at room temperature with a solution of 32 g 2-bromomethyl-2-phenyl-3- ( 2-chlorophenyl) oxirane in 150 ml of N, N-dimethylformamide. After 8 hours, the reaction solution was poured into water and extracted with ethyl acetate. The organic phase was washed with water, dried over sodium sulfate and the solvent was evaporated in vacuo. 2 was obtained from diisopropyl ether₄ g Z-2- (1,2,4-triazolyl-1-ylmethyl) -2- (phenyl) -3- (2-chlorophenyl) oxirane with a melting point of 150 ° C (compound no.1).

According to Example 1, the compounds listed in the table can be prepared.<tables id="tabl0001" num="0001"><img file="EP0196038A2_D0010.tif" /></tables><tables id="tabl0002" num="0002"><img file="EP0196038A2_D0011.tif" /></tables>

Generally speaking, the new compounds are distinguished by excellent activity against a broad spectrum of phytopathogenic fungi, in particular from the classes of the Ascomycetes and Basidiomycetes. Some of them are systemically active and can be used as foliar and soil fungicides.

The fungicidal compounds are particularly interesting for controlling a large number of fungi on various crop plants or their seeds, in particular wheat, rye, barley, oats, rice, corn, lawn, cotton, soybeans, coffee, sugar cane, fruit and ornamental plants in horticulture and viticulture as well as vegetables such as cucumbers, beans and squashes.

The new compounds are particularly suitable for controlling the following plant diseases:<ul id="ul0002" list-style="none"><li>Erysiphe graminis (powdery mildew) in cereals,</li></ul>

Erysiphe cichoracearum and Sphaerotheca fuliginea on pumpkin plants,<ul id="ul0003" list-style="none"><li>Podosphaera leucotricha on apples,</li><li>Uncinula necator on vines,</li><li>Puccinia species on cereals,</li><li>Rhizoctonia species on cotton and lawn,</li><li>Ustilago species on cereals and sugar cane,</li><li>Venturia inaequalis (scab) on apples,</li><li>Septoria nodorum on wheat,</li><li>Botrytis cinerea (gray mold) on strawberries, vines,</li><li>Cercospora arachidicola on peanuts,</li><li>Pyrenophora teres on barley,</li><li>Pseudocercosporella herpotrichoides on wheat, barley,</li><li>Pyricularia oryzae on rice,</li><li>Hemileia vastratrix with coffee,</li><li>Alternaria solani on potatoes, tomatoes,</li><li>Sclerotium rolfsii on peanuts and turf species,</li><li>Fusarium and Verticillium species on different plants.</li></ul>

The compounds are applied by spraying or dusting the plants with the active compounds or treating the seeds of the plants with the active compounds. The application is carried out before or after the plants or seeds are infected by the fungi.

The new substances can be converted into the usual formulations, such as solutions, emulsions, suspensions, dusts, powders, pastes and granules. The application forms depend entirely on the purposes; in any case, they should ensure a fine and uniform distribution of the active substance. The formulations are prepared in a known manner, for example. by stretching the active ingredient with solvents and / or carriers, if appropriate using emulsifiers and dispersants, where, if water is used as the diluent, other organic solvents can also be used as auxiliary solvents. The following are essentially suitable as auxiliaries: solvents such as aromatics (eg xylene, benzene), chlorinated aromatics (eg chlorobenzenes), paraffins (eg petroleum fractions), alcohols (eg Methanol, butanol), ketones (e.g. cyclohexanone), amines (e.g. ethanolamine, dimethylformamide) and water, carriers such as natural stone powder (e.g. kaolins, clays, talc, chalk) and synthetic rock powder (e.g. highly disperse silica, silicates); Emulsifiers, such as nonionic and anionic emulsifiers (for example polyoxyethylene fatty alcohol ethers, alkyl sulfonates and aryl sulfonates) and dispersants, such as lignin, sulfite liquors and methyl cellulose.

The fungicidal compositions generally contain between 0.1 and 95, preferably between 0.5 and 90% by weight of active ingredient.

Depending on the type of effect desired, the application rates are between 0.02 and 3 kg of active ingredient or more per hectare. The new compounds can also be used in material protection. When using the active ingredients in the protection of materials, inter alia for combating wood-destroying fungi such as Coniophora puteana and Polystictus versicolor. The new active ingredients can also be used as fungicidally active components of oily wood preservatives to protect wood against wood-staining fungi. The application takes place in such a way that the wood is treated with these agents, for example soaked or painted

The agents or the ready-to-use preparations produced therefrom, such as solutions, emulsions, suspensions, powders, dusts, pastes or granules, are used in a known manner, for example by spraying, atomizing, dusting, scattering, pickling or pouring.

Examples of such preparations are:<ul id="ul0004" list-style="none"><li>I. 90 parts by weight of compound no. 2 are mixed with 10 parts by weight of N-methyl-a-pyrrolidone and a solution is obtained which is suitable for use in the form of tiny drops</li></ul>

II. 20 parts by weight of compound no. 8 are dissolved in a mixture consisting of 80 parts by weight of xylene, 10 parts by weight of the adduct of 8 to 10 moles of ethylene oxide and 1 mole of oleic acid-N-monoethanolamide, 5 Parts by weight of calcium salt of dodecylbenzenesulfonic acid and 5 parts by weight of the adduct and 40 moles of ethylene oxide ₁ Mol of castor oil consists of pouring out and finely distributing the solution in water, an aqueous dispersion is obtained.

III. 20 parts by weight of compound no. 17 are dissolved in a mixture consisting of 40 parts by weight of cyclohexanone, 30 parts by weight of isobutanol, 20 parts by weight of the adduct of 40 moles of ethylene oxide and 1 mole of castor oil and finely distributing the solution in water gives an aqueous dispersion.

IV. 20 parts by weight of compound no. 2 are dissolved in a mixture consisting of 25 parts by weight of cyclohexanol, 65 parts by weight of a mineral oil fraction with a boiling point of 210 to 280 ° C. and 10 parts by weight of the adduct of 40 moles Ethylene oxide in 1 mol castor oil consists of pouring and finely distributing the solution in water, an aqueous dispersion is obtained.

V. 80 parts by weight of compound no. 8 are mixed well with 3 parts by weight of the sodium salt of diisobutylnaphthalene-α-sulfonic acid, 10 parts by weight of the sodium salt of lignin sulfonic acid from a sulfite waste liquor and 7 parts by weight of powdered silica gel and ground in a hammer mill. A spray liquor is obtained by finely distributing the mixture in water.

V1. 3 parts by weight of compound no. 17 are intimately mixed with 97 parts by weight of finely divided kaolin. This gives a dusting agent which contains 3% by weight of the active ingredient.

V11. 30 parts by weight of compound no. 1 are intimately mixed with a mixture of 92 parts by weight of powdered silica gel and 8 parts by weight of paraffin oil which has been sprayed onto the surface of this silica gel. In this way, a preparation of the active ingredient with good adhesiveness is obtained

V111. 40 parts by weight of compound no. 2 are intimately mixed with 10 parts by weight of sodium salt of a phenolsulfonic acid-urea-formaldehyde condensate, 2 parts by weight of silica gel and 48 parts by weight of water. A stable aqueous dispersion is obtained. An aqueous dispersion is obtained by dilution with water.

IX.20 parts by weight of compound no. 3 are mixed with 2 parts by weight of calcium salt of dodecylbenzenesulfonic acid, 8 parts by weight of fatty alcohol polyglycol ether, 2 parts by weight of sodium salt of a phenolsulfonic acid-urea-formaldehyde condensate and 68 parts by weight. Parts of a paraffinic mineral oil are intimately mixed. A stable oily dispersion is obtained.

In these forms of use, the agents according to the invention can also be present together with other active ingredients, such as, for example, herbicides, insecticides, growth regulators and fungicides, or else mixed and applied with fertilizers. When mixed with fungicides, the fungicidal spectrum of activity is enlarged in many cases.

The following list of fungicides with which the compounds according to the invention can be combined is intended to explain the combination possibilities, but not to limit them.

Examples of fungicides which can be combined with the compounds according to the invention are:<ul id="ul0005" list-style="none"><li>Sulfur,</li><li>Dithiocarbamates and their derivatives, such as</li><li>Ferridimethyldithiocarbamate,</li><li>Zinc dimethyldithiocarbamate,</li><li>Zinc ethylene bisdithiocarbamate,</li><li>Manganese ethylene bisdithiocarbamate,</li><li>Manganese-zinc-ethylenediamine-bis-dithiocarbamate,</li><li>Tetramethylthiuram disulfide,</li><li>Ammonia complex of zinc (N, N-ethylene-bis-dithiocarbamate),</li><li>Ammonia complex of zinc (N, N'-propylene-bis-dithiocarbamate,</li><li>Zinc (N, N'-propylene-bis-dithiocarbamate),</li><li>N, N'-polypropylene bis (thiocarbamoyl) disulfide; Nitroderivatives, such as</li><li>Dinitro- (1-methylheptyl} phenylcrotanate,</li><li>2-sec-butyl-4,6-dinitrophenyl-3,3-dimethylacrylate,</li><li>2-sec-butyl-4,6-dinitrophenyl isopropyl carbonate;</li><li>5-nitro-isophthalic acid di-isopropyl ester heterocyclic substances, such as</li><li>2-heptadecyl-2-imidazoline acetate,</li><li>2,4-dichloro-6- (o-chloroanilino) -s-triazine,</li><li>0,0-diethyl phthalimidophosphonothioate,</li><li>5-amino-1- [bis- (dimethylamino) phosphiny)] - 3-phenyl-1,2,4-triazole,</li><li>2,3-dicyano-1,4-dithioanthraquinone,</li><li>2-thio-1,3-dithio- (4,5-b) -quinoxaiine,</li><li>1- (butylcarbamoyl) -2-benzimidazole-</li><li>carbamic acid methyl ester,</li><li>2-methoxycarbonylamino-benzitnidazole,</li><li>2- (furyl- (2)) - benzimidazole,</li><li>2- (thiazolyl- (4)) -benzimidazole,</li><li>N- (1,1,2,2-tetrachloroethylthiol) tetrahydrophthalimide,</li><li>N-trichloromethylthio-tetrahydropthalimide,</li><li>N-trichloromethylthio-phthalimide,</li><li>N-dichlorotluoromethylthio-N ', N'-dimethyl-N-phenyl-- sulfuric acid diamide,</li><li>5-ethoxy-3-trichloromethyl-1,2,3-thiadiazole,</li><li>2-rhodanmethylthiobenzthiazole,</li><li>1,4-dichloro-2,5-dimethoxybenzene,</li><li>4- (2-chlorophenylhydroazano) -3-methyl-5-isoxazolone,</li><li>Pyridine-2-thio-1-oxide,</li><li>8-hydroxyquinoline or its copper salt,</li><li>2,3-dihydro-5-carboxanilido-6-methyl-1,4-oxathiine,</li><li>2,3-dihydro-5-carboxanilido-6-methyl-1,4-oxathiin-4,4-dioxide,</li><li>2-methyl-5,6-dihydro-4H-pyran-3-carboxylic acid aniline,</li><li>2-methyl-furan-3-carboxylic acid anilide,</li><li>2,5-dimethyl-furan-3-carboxylic acid anilide,</li><li>2,4,5-trimethyl-furan-3-carboxylic acid anilide,</li><li>2,5-dimethyl-furan-3-carboxylic acid cyclohexylamide,</li><li>N-cyclohexyl-N-methoxy-2,5-dimethyl-furan-3-carboxamide,</li><li>2-methylbenzoic acid anilide,</li><li>2-iodo-benzoic acid anilide,</li><li>N-formyl-N-morpholine-2,2,2-trichloroethyl acetal,</li><li>Piperazin-1,4-dirylbis- (1- (2,2,2-trichloro-ethyl) -formamide,</li><li>1- (3,4-dicfitoranilfno) -1-formylamino-2,2,2-trichloroethane,</li><li>2,6-dimethyl-N-tridecyl-morpholine or its salts,</li><li>2,6-dimethyl-N-cyctodedecyl-morpholine or its salts,</li><li>N- [3- (p-tert-butylphenyl) -2-methyropropyl] cis-2,6-dimethylmorpholine,</li><li>N- [3- (p-tert-butylphenyl) -2-methylpropyt] piperidine,</li><li>1- [2- (2,4-dichlorophenyl) -4-ethyl-1,3-dioxolan-2-yl-ethyl] -1H-1,2,4-triazole</li><li>t- [2- (2,4-dichlorophenyl) -4-n-propyf-t, 3-dioxolan-2-yl-ethyl] -1H-1,2,4-fiazole,</li><li>N- (n-propyl) -N- {2,4,6-frichforphenoxyethyl) -N'-imidazol-yl urea,</li><li>1- (4-chlorophenoxy) -3,3-dimethyl-1- (1H-1,2,4-triazol-1-yl) -2-butanone,</li><li>1- (4-chtorphenoxy) -3,3-dimethyl-1- (1H-1,2,4-triazot-1-yl) -2-butanol,</li><li>1- (4-phenylphenoxy) -3,3-dimethyl-1- (1H-7,2,4-triazol-t-yl) -2-butanol,</li><li>α- (2-chlorophenyte) -α- (4-chlorophenyl) -5-pyrimidine-methanol,</li><li>5-butyl-2-dimethyiamino-4-hydroxy-6-methyt-pyrimidine,</li><li>Bis- (p-chlorophenyl) -3-pyridinemethanol,</li><li>1,2-bis (3-ethoxycarbonyl-2-thioureido) benzene,</li><li>1,2-bis (3-methoxycarbonyl-2-thioureido) benzene,</li><li>as well as various fungicides, such as</li><li>Dodecylguanidine acetate,</li><li>3- [3- (3,5-dimethyl-2-oxycyclohexyl) -2-hydroxyethyl] glutarimide,</li><li>Hexachlorobenzene,</li><li>DL-methyl-N- (2,6-dimethyl-phenyl) -N-furoyl (2) -alaninate,</li><li>DL-N- (2,6-dimethylphenyl) -N- (2'-methoxyaceiyl) alanine methyl ester,</li><li>N- (2,6-dimeihyiphenyl) -N-chloroacetyl-D, L-2-aminobutyrofactone,</li><li>DL-N- (2,6-dimethylphenyl) -N- (phenylacetyl) alanine methyl ester,</li><li>5-methyl-5-vinyl-3- (3,5-dichlorophenyl) -2,4-dioxo-1,3-oxazolidine,</li><li>3- [3,5-dichlorophenyl (-5-methyl-5-methoxymethyl] -1,3-oxazolidine-2,4-dione,</li><li>3- (3,5-dichlorophenyl) -1-isopropylcarbamoylhydantoin,</li><li>N- (3,5-dichromophenyl) -1,2-dimethyicyclopropane-1,2-dicarboxylic acid imide,</li><li>2-cyano- [N- (ethyfaminocarbonyl) -2-methoximino] acetamide,</li><li>t- [2- (2,4-dichforphenyl) pentyl] -1H-1,2,4-triazole,</li><li>2,4'-difluoro-α- (1H-1,2,4-triazofyl-1-methyl) -benzhydryl alcohol,</li><li>N- (3-chloro-2,6-dinitro-4-trifluoromethylphenyl) -5-trifluoromethyl-3-chloro-2-aminopyridine,</li><li>1 - ((bis · (4-fluorophenyl) -methyls | lyl) -methyl) -1 H-1,2,4-triazole,</li></ul>

For the following experiments, the known active ingredient 2- (1,2,4-triazofyt-1-yl-methyl) -2- (4-chforphenyl) -3- (2,4-dichlorophenyl) oxirane (A) (EP 94 564) used

Trial 1

Efficacy against powdery mildew

Leaves of potted wheat seedlings of the "Frühgold" variety are sprayed with an aqueous spray mixture which contains 80% active ingredient and 20% emulsifier in the dry matter, and 24 hours after the spray coating has dried on, with oidia (spores) of the powdery mildew (Erysiphe graminis var. Tritici ) pollinated The test plants are then placed in a greenhouse at temperatures between 20 and 22 ° C and 75 to 80% relative humidity. The extent of mildew development is determined after 7 days

The result of the experiment shows that, for example, when used as 0.025; 0.006 or 0.0015% (wt.%) Active ingredient broth, the compounds 2, 8, 16, 21, 23 and 17 show a better fungicidal activity (97%) than the known active ingredient A (90%).

Trial 2

Efficacy against wheat brown rust

Leaves of "Fruhgoid" wheat seedlings grown in pots are dusted with spores of brown rust - (Puccinia recondita). The pots are then placed in a chamber with high humidity (90 to 95%) at 20 to 22 ° C for 24 hours Time spores germinate and the germ tubes penetrate the leaf tissue. The infected plants are then sprayed to runoff point with aqueous spray liquors which contain 80% active ingredient and 20% emulsifier in the dry substance. After the spray application has dried on, the test plants are placed in a greenhouse at temperatures between 20 and 22 ° C. and 65 to 70% relative atmospheric humidity . After 8 days, the extent of the rust fungus development on the leaves is determined.

The result of the test shows that, for example, when used as 0.006 or 0.0015% active ingredient broth, the compounds 1, 2, 3, 7, 8, 9, 16, 23, 24 and 17 show a better fungicidal activity (97%) than the known active ingredient A (70%).

Trial 3

Efficacy against Pyrenophora teres

Barley seedlings of the "Asse" variety are sprayed to runoff point in the two-leaf stage with aqueous suspensions containing 80% active ingredient and 20% emulsifier in the dry matter. After 24 hours, the plants are inoculated with a spore suspension of the fungus Pyrenophora teres and placed in a climatic chamber with high atmospheric humidity at 18 ° C. for 48 hours. The plants are then cultivated in a greenhouse at 20 to 22 ° C. and 70% relative atmospheric humidity for a further 5 days. The extent of symptom development is then determined.

The result of the test shows that, for example, when used as a 0.05% strength active ingredient broth, the compounds ₁, 2, 3, 16, 21, 24 and 8 show good fungicidal activity (97%).