PYRAZOLE DERIVATIVE, INSECTICIDAL OR MITICIDAL COMPOSITION CONTAINING THE SAME AS THE EFFECTIVE INGREDIENT

Abstract: A novel pyrazole derivative and an insecticidal or miticidal composition containing the derivative as the effective ingredient are disclosed. The pyrazole derivative of the present invention has an excellent controlling effect also against harmful insects and mites exhibiting resistance to conventional insecticides and does not disturb the ecosystem since it is less toxic and less residual.

Description: The present invention relates to a novel pyrazole derivative, an insecticidal or miticidal composition containing the derivative as the effective ingredient and an exterminator for animal or plant parasiting mite. Examples of the compounds having the structure similar to that of the present invention are described for those having fungicidal activity in Pest. Bio. Phy., 25 , 163 (1986), JP-A-52-87168 and 60-34949; for those having herbicidal activity in JP-A-57-106665; and for those having medicinal properties JP-A-47-6269, 48-56671, 52-83840, 56-73071 and 59-95272, JP-B-55-44751 and J. Pharm. Sci., 74 , 1013 (1985). However, the insecticidal and miticidal activities of these compounds are not reported at all. Further, aralkyl group as the substituent for the titrogen atom in the carbmoyl group or thiocarbamoyl group is not described at all the above-mentioned publications. While on the other hand, N-benzyl-3-methyl-5-pyrazole carboxamide and benzyl 3-methyl-5-pyrazole carboxylate are described in Farmaco, Ed. Sci., 22 , 692 (1967). N-benzyl-1-(2,4-dinitrophenyl)-3-biphenyl-5-pyrazole carboxamide is disclosed in Rev. Roum. Chim., 23 , 1581 (1978). Further, N-(4-hydroxybenzyl)-1,3-dimethyl-5-pyrazole carboxamide and N-(4-hydroxycarbonyl methoxybenzyl)-1,3-dimethyl-5-pyrazole carboxamide are disclosed in JP-A-50-58056. However, there are no report at all for the presence or absence of insecticidal and miticidal activities of these compounds. Recently, harmful insects have acquired resistance to insecticides due to the long time use thereof and control by the conventional insecticides has become difficult. Harmful insects, for instance, resistive to typical insecticides such as organic phosphorus agent and carbamates have been developed generally and the control thereof is difficult. Further, it is also reported the development of harmful insects resistive to synthesized pyrethroide type insecticides noted in recent years. Aside from the above, some of organic phosphorus agent or carbamate agents show high toxicity and others disturb the ecosystem due to their high residual effect to bring about an extremely anxious problem. Pyrazole derivatives are also described in CA 96:6671y, Synthesis 1981, (9), 727-9; CA 99:139889j Farmaco, Ed. Sci., 1983, 38(6), 369-76; CA 101:55476u, J. Med. Chem., 1984, 27(8), 986-90; CA 42548w, JP-B-48-15300. Accordingly, it has been expected to develop a novel insecticide showing excellent controlling effect even against those harmful insects and mites exhibiting resistance to the conventional insecticides and showing less toxicity and low residual effect. The present inventors have made an earnest study for solving such a problem and have found a novel pyrazole derivative having excellent insecticidal or miticidal activity. The present invention has been accomplished based on the findings. In a first aspect of the present invention, there is provided a pyrazole derivative represented by the following formula (I): wherein R¹ represents a C1-C4 alkyl group; R² represents a hydrogen atom, a C₁-C₄ alkyl group, a C₃-C₆ cycloalkyl group or a C₁-C₄ haloalkyl group; and R³ represents wherein R⁴ represents wherein R⁵, R⁶ and R⁷ represent respectively a hydrogen atom, a C₁-C₄ alkyl group or a phenyl group, R⁸ and R⁹ represent respectively a hydrogen atom, a halogen atom, a C₁-C₈ alkyl group, a C₃-C₅ alkenyl group, a C₃-C₅ alkynyl group, a C₃-C₆ cycloalkyl group, a C₂-C₄ alkoxyalkyl group, a C₁-C₄ alkoxy group, a C₁-C₄ haloalkoxy group, a nitro group, a trifluoromethyl group, a phenyl group, a benzyl group, a phenoxy group, a benzyloxy group, an amino group, a C₁-C₄ alkylamino group, a C₂-C₈ dialkylamino group, a cyano group, a carboxyl group, a C₂-C₅ alkoxycarbonyl group, a C₄-C₇ cycloalkoxycarbonyl group, a C₃-C₉ alkoxyalkoxycarbonyl group, a C₂-C₆ alkylaminocarbonyl group, a C₃-C₁₁ dialkylaminocarbonyl group, a piperidinocarbonyl group, a morpholinocarbonyl group, a trimethylsilyl group, a C₁-C₄ alkylthio group, a C₁-C₄ alkylsulfinyl group, or a C₁-C₄ alkylsulfonyl group; and X represents a hydrogen atom, a halogen atom, a C₁-C₄ alkyl group; a cyano group or a C₁-C₅ alkylamino group. In a second aspect of the present invention, there is provided an insecticidal or miticidal composition comprising as the effective ingredient an insecticidally or miticidally effective amount of a pyrazole derivative as described above/and insectidically and miticidally accpetable adjuvant (s). In a third aspect of the present invention, there is provided a method of controlling insects and mites, which comprises applying an insecticidally and miticidally effective amount of a pyrazole derivative as described above to eggs or larvae of said insects or mites. In a fourth aspect of the present invention, there is provided a process for producing pyrazole derivative as described above which comprises reacting a compound represented by the following general formula (II): wherein R¹, R² and X have the same meanings as defined in the formula (I) described above, Z represents a chlorine atom, bromine atom, hydroxyl group, methoxy group, ethoxy group or propoxy group and Y represents an oxygen atom with a compound represented by R⁴H wherin R⁴ has the same meanings as defined in formula (I) described above. The present invention will be described more specifically. In the formula (I), R¹ represents a C₁-C₄ alkyl group such as methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group and t-butyl group. R² represents a hydrogen atom, C₁-C₄ alkyl group as described above, C₃-C₆ cycloalkyl group such as cyclopropyl group, cyclobutyl group, cyclopenty group and cyclohexyl group and R³ represents R⁴ represents wherein R⁵, R⁶ and R⁷ represent respectively hydrogen atom; C₁-C₄ alkyl group such as a methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group and t-butyl group; or phenyl group. R⁸ and R⁹ represent respectively hydrogen atom; halogen atoms such as a fluorine atom, chlorine atom, bromine atom and iodine atom; C₁ - C₈ alkyl group such as a methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group, t-butyl group, n-amyl group, isoamyl group, t-pentyl group, n-hexyl group, 1-ethyl-1-methylpropyl group and n-octyl group; C₃ - C₅ alkenyl group such as allyl group, methallyl group and 2-butenyl group; C₃ - C₅ alkynyl group such as a propargyl group; C₃ - C₆ cycloalkyl group such as a cyclopropyl group, cyclobutyl group, cyclopentyl group and cyclohexyl group; C₂ - C₄ alkoxyalkyl group such as a ethoxymethyl group and ethoxyethyl group; C₁ - C₄ alkoxy group such as a methoxy group, ethoxy group, n-propoxy group, isopropoxy group, n-butoxy group, isobutoxy group, sec-butoxy group and t-butoxy group; C₁ - C₄ haloalkoxy group such as a monofluoromethoxy group, difluoromethoxy group, trifluoromethoxy group, 2,2,2-trifluoroethoxy group, chloromethoxy group, 2-chloroethoxy group, 2-bromoethoxy group, 3-chloropropoxy group, 4-chlorobutoxy group, 4-bromobutoxy group and 1,1-dimethyl-2-chloroethoxy group; nitro group; trifluoromethyl group; a phenyl group; a benzyl group; a phenoxy group; a benzyloxy group; an amino group; C₁ - C₄ alkylamino group such as a methylamino group, ethylamino group, n-propylamino group, isopropylamino group, n-butylamino group, isobutylamino group, sec-butylamino group and t-butylamino group; C₂ - C₈ dialkylamino group such as a dimethylamino group, diethylamino group, di-n-propylamino group, diisopropylamino group, di-n-butylamino group, diisobutylamino group, N-ethylmethylamino group, N-methylpropylamino group, N-n-butylethylamino group and N-isobutylethylamino group; a cyano group; carboxyl group; C₂ - C₅ alkoxycarbonyl group such as a methoxycarbonyl group, ethoxycarbonyl group, n-propoxycarbonyl group, isopropoxycarbonyl group, n-butoxycarbonyl group, isobutoxycarbonyl group, sec-butoxycarbonyl group and t-butoxycarbonyl group; C₄ - C₇ cycloalkoxycarbonyl group such as a cyclopropoxycarbonyl group, cyclobutoxycarbonyl group, cyclopentyloxycarbonyl group and cyclohexyloxycarbonyl group; C₃ - C₉ alkoxyalkoxycarbonyl group such as a methoxymethoxycarbonyl group, methoxyethoxycarbonyl group, methoxypropoxycarbonyl group, methoxybutoxycarbonyl group, ethoxyethoxycarbonyl group, n-propoxyethoxycarbonyl group, isopropoxyethoxycarbonyl group, n-(iso-, sec- or t-)butoxyethoxycarbonyl group and hexyloxyethoxycarbonyl group; C₂ - C₆ alkylaminocarbonyl group such as a methylaminocarbonyl group, ethylaminocarbonyl group, n-propylaminocarbonyl group, isopropylaminocarbonyl group, n-(iso-, sec- or t-)butylaminocarbonyl group, pentylaminocarbonyl group and hexylaminocarbonyl group; C₃ - C₁₁ dialkylaminocarbonyl group such as dimethylaminocarbonyl group, diethylaminocarbonyl group, dipropylaminocarbonyl group, dibutylaminocarbonyl group, dipentylaminocarbonyl group, methylethylaminocarbonyl group, methylpropylaminocarbonyl group and ethylbutylaminocarbonyl group; piperidinocarbonyl group; morpholinocarbonyl group; trimethylsilyl group; C₁ - C₄ alkylthio group such as a methylthio group, ethylthio group, n-propylthio group, isopropylthio group, n-butylthio group, isobutylthio group, sec-butylthio group and t-butylthio group; C₁ - C₄ alkylsulfinyl group such as methylsulfinyl group, ethylsulfinyl group, n-propylsulfinyl group, isopropylsulfinyl group, n-butylsulfinyl group, isobutylsulfinyl group, sec-butylsulfinyl group and t-butylsulfinyl group; or C₁ - C₄ alkylsulfonyl group such as methylsulfonyl group, ethylsulfonyl group, n-propylsulfonyl group, isopropylsulfonyl group, n-butylsulfonyl group, isobutylsulfonyl group, sec-butylsulfonyl group and t-butylsulfonyl group. X represents a hydrogen atom; halogen atom such as a fluorine atom, chlorine atom, bromine atom and iodine atom; C₁ - C₄ alkyl group such as a methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group and t-butyl group; nitro group; cyano group; C₁ - C₅ alkylamino group such as a methylamino group, ethylamino group, n-propylamino group, isopropylamino group, n-butylamino group, isobutylamino group, sec-butylamino group, t-butylamino group and pentylamino group. Description is to be made for the production process of the compound according to the present invention. The compound according to the present invention represented by the formula (I) described above can be produced in accordance with the following reaction scheme. wherein R¹, R², R³ and R⁴ and X have the same meanings as defined in the formula (I) described above, one of R¹⁰ and R¹¹ represents wherein Z represents chlorine atom, bromine atom, hydroxyl group, methoxy group, ethoxy group or propoxy group, and the other of them represents hydrogen atom, C₁ - C₄ alkyl group, C₁ - C₄ haloalkyl group, C₃ - C₆ cycloalkyl group or phenyl group. In a case where Z represents chlorine atom or bromine atom in the formula (II) described above, the compound of the formula (I) can be obtained by reacting the compound represented by the formula (II) with R⁴H in an aromatic hydrocarbon such as benzene, toluene and xylene; ketone such as acetone, methyl ethyl ketone and methyl isobutyl ketone; halogenated hydrocarbon such as chloroform and methylene chloride; water; esters such as methyl acetate, ethyl acetate; polar solvent such as tetrahydrofuran, acetonitrile, dioxane, N,N-dimethylformamide, N-methylpyrrolidone and dimethyl sulfoxide at a temperature from 0 to 30°C, preferably, from 0 to 5°C under the presence of a base. The base can include sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, pyridine and triethylamine. Further, in a case where Z represents hydroxyl group, methoxy group, ethoxy group or propoxy group in the formula (II), the compound of the formula (I) can be obtained by reacting the compound of the formula (II) with R⁴H without using solvent or in a high boiling point solvent such as N,N-dimethylformamide, N-methylpyrrolidone and dimethyl sulfoxide at a temperature from 150 to 250°C, preferably from 200 to 250°C. The compound represented by the formula (II) described above can be prepared, for example, according to the method as described in Bull. Soc. Chim. France, 293 (1966). The compound represented by the formula (I) has a remarkable controlling activity against eggs and larvae of insects such as of Celeoptera, Lepidoptera, Hemiptera, Orthoptera and Diptera, as well as eggs and larvae of animal or plant parasiting spider mite. However, harmful insects against which the compound represented by the formula (I) shows a remarkable controlling activity are not restricted to those exemplified below. 1. Hemiptera Delphacidae such as Sogatella furcifera , Nilaparvata lugens , Laodelphax striatellus , etc.; Leaf hopper such as Nephotettix cincticeps , etc.; Aphis such as Myzus persicae , etc. 2. Lepidoptera Spodoptera litura , Chilo suppressalis , Cnaphalocrosis medinalis , etc. 3. Coleoptera Callosobruchus chinensis , etc. 4. Diptera Musca domestica , Aedes aegypti , Culex pipiens molestus , etc. 5. Spider mite Tetranychus urticae , Tetranychus cinnabarinus , Panonychus citri , etc. 6. Tick Boophilus spp. , Ornithodoros spp. , etc. In the case of using the compound represented by the formula (I) according to the present invention as an insecticide or miticide, it may be used alone or usually formulated into emulsifiable concentrate, dust, wettable powder, solution, etc. together with adjuvants in the same manner as conventional agricultural chemicals and then used without or after dilution. The adjuvants are those used ordinarily for the formulation of the insecticides. For instance, there can be mentioned solid carrier such as talc, kaolin, diatomaceous earth, clay and starch; water; hydrocarbons such as cyclohexane, benzene, xylene and toluene; halogenated hydrocarbons such as chlorobenzene; ethers; amides such as dimethylformamide; ketones; alcohols; nitriles such as acetonitrile, as well as other known surface active agents such as emulsifiers and dispersing agents. If desired, it is also possible to use in admixture or combination with other insecticides, miticides, fungicides, insect growth controlling agent, plant growth controlling agent, etc. Although the concentration for the effective ingredient in the formulated insecticidal or miticidal composition has no particular restrictions, it is usually contained from 0.5 to 20 % by weight, preferably, from 1 to 10% by weight in dust; from 1 to 90% by weight, preferably, from 10 to 80% by weight in wettable powder; and from 1 to 90% by weight, preferably, from 10 to 40% by weight in emulsifiable concentrate. In the case of using the compound represented by the formula (I) as the insecticide or miticide, it is usually used within the range of concentration of the active ingredient from 5 to 1000 ppm, preferably, from 10 to 500 ppm. The present invention will be explained more specifically referring to the following preparation examples, formulation examples and test examples for the compound according to the present invention, but it should be understood that the present invention is not restricted only to the following examples. Example 1 : Preparation of N-(4-tert-butyl-α-methylbenzyl)-4-bromo-1,3-dimethyl-5-pyrazole carboxamide A mixture of 2.19 g of 4-bromo-1,3-dimethylpyrazole-5-carboxylic acid and 11.7 g of thionyl chloride was heated under reflux for one hour. After distilling off thionyl chloride under a reduced pressure, the residue was dissolved into 20 ml of toluene. The solution was dropped into 25 ml of a toluene solution containing 2.12 g of 4-tert-butyl-α-methylbenzylamine and 1.21 g of triethylamine at a temperature from 0 to 10°C. After dropping was over, the solution was stirred for 2 hours, poured into ice-water and extracted with toluene. The toluene layer was washed with an aqueous solution of sodium carbonate, water and then saturated aqueous solution of sodium chloride. After drying over anhydrous sodium sulfate, it was concentrated under a reduced pressure. The residue was purified by silica gel column chromatography to obtain 3.41 g of the compound (No. 13) described in Table 1. NMR and IR for the compound were as described below. ¹HNMR(CDCl₃)δppm; 1.30 (s, 9H), 1.60 (d, 3H), 2.25 (s, 3H), 4.10 (s, 3H), 5.25 (m, 1H), 7.00 (b, 1H), 7.35 (m, 4H) IR(KBr) cm⁻¹; 3330, 2970, 1640, 1535, 1290, 1270, 1035, 825, 570 Example 2 : Preparation of N-(4-tert-butylbenzyl)-4-chloro-1,3-dimethyl-5-pyrazole carboxamide A mixture of 2.03 g of ethyl 4-chloro-1,3-dimethylpyrazole-5-carboxylate and 2.45 g of 4-tert-butylbenzylamine was heated at 200°C for 4 hours under stirring. After cooling to room temperature, the reaction product was purified by silica gel column chromatography to obtain 2.24 g of the compound (No. 36) described in Table 1. NMR and IR for the compound were as described below. ¹HNMR(CDCl₃)δppm; 1.30 (s, 9H), 2.25 (s, 3H), 4.15 (s, 3H), 4.60 (d, 2H), 7.00 (b, 1H), 7.40 (m, 4H) IR(KBr) cm⁻¹; 3300, 2960, 1650, 1560, 1465, 1300, 1090, 990, 820, 660, 640 Example 3 : The compounds as described in Tables 1 to 3 were obtained according to the methods of Example 1 to 2. Formulation examples of the compound according to the present invention are shown below, in which "parts" and "%" means "parts by weight" and "% by weight" respectively. Formulation Example 1 : Wettable Powder A wettable powder containing 40% of the effective ingredient was prepared by uniformly mixing and pulverizing 20 parts of each of the compounds according to the present invention shown in Tables 1 to 3, 20 parts of Carplex #80 (trademark, manufactured by Shionogi Seiyaku Co.), 55 parts of N,N Kaolin Clay (trademark, manufactured by Tsuchiya Kaolin Co.), and 5 parts of Sorpol 8070, a higher alcohol sulfuric ester type surface active agent (trademark, manufactured by Toho Kagaku Co.). Formulation Example 2: Dust A dust containing 2% effective ingredient was prepared by uniformly mixing and pulverizing 2 parts of each of the compounds according to the present invention shown in Tables 1 to 3, 93 parts of clay (manufactured by Nippon Talc Co.) and 5 parts of white carbon. Formulation Example 3: Emulsifiable Concentrate An emulsifiable concentrate containing 20% of the effective ingredients was prepared by dissolving 20 parts of each of the compounds according to the present invention shown in Tables 1 to 3 into a mixed solvent comprising 35 parts of xylene and 30 parts of dimethylformamide and adding thereto 15 parts of Sorpol 3005X, a polyoxyethylene type surface active agent (trademark, manufactured by Toho Kagaku Co.). Formulation Example 4: Flowable Agent A stable flowable agent containing 30% of the effective ingredients was prepared by mixing and dispersing 30 parts of the compound according to the present invention shown in Tables 1 to 3 and a previously prepared mixture of 8 parts of ethylene glycol, 5 parts of Sorpol AC 3032 (trademark, manufactured by Toho Kagaku Co.) and 0.1 parts of xanthene gum into 56.9 parts of water, and then pulverizing the slurry-like mixture in the wet process in a DYNO-MILL (manufactured by Shinmaru Enterprises Co.). Test Example 1: Effect against adult Tetranychus urticae Ten female adult Tetranychus urticae were put to a leaf disc (2 cm diameter) of a kidney bean leaf. Then, 5 ml of a solution, prepared by diluting each of insecticidal and miticidal compositions of the present invention formulated in accordance with the preparation of Formulation Example 1 with water to a predetermined concentration, was scattered by using a rotary type scattering tower (manufactured by Mizuho Rika Co.). Test was repeated twice for one concentration. 24 hours after the treatment, the number of live and dead larvae were investigated and the miticidal activity (%) was determined by the following equation. The results are shown in Table 4. Test Example 2: Effect against eggs of Tetranychus urticae Five female adult Tetranychus urticae were put to a leaf disc (2 cm diameter) of a kidney bean leaf. The mites were allowed to oviposit on the leaf disc for 20 hours after putting and then the adult females mites were removed. Then, 5 ml of a solution prepared by diluting each of insecticidal and miticidal compositions of the present invention formulated in accordance with the preparation of Formulation Example 1 with water to a predetermined concentration was scattered by using a rotary type scattering tower (manufactured by Mizuho Rika Co.). Test was repeated twice for one concentration. The number of unhatched eggs and the number of hatched larvae were investigated 5 days after the treatment to determine the ovicidal activity (%) by the following equation. The results are shown in Table 4. Test Example 3: Effect against larvae of Nilaparvata lugens Germinated seedlings of rice plant were set to a glass cylinder (3 cm diameter, 17 cm length) and five larvae of fourth instar of Nilaparvata lugens were put to them. Then, each of the insecticidal and miticidal compositions according to the present invention formulated in accordance with the preparation of Formulation Example 3 was diluted with water and scattered by 0.5 ml using a scattering tower (manufactured by Mizuho Rika Co.). Test was repeated four times for one centration. Twenty-four hours after the treatment, the number of dead larvae was examined to determine the mortality (%). The results are shown in Table 5. Test Example 4: Effect against larvae of Plutella xylostella Slices of cabbage leaves (5 x 5 cm) were immersed for one minute in a water-diluted solution of each of the insecticidal and miticidal compositions of the present invention formulated in accordance with the preparation of Formulation Example 1. They were air-dried after immersion and placed in a plastic cup (7 cm diameter), to which five larvae of third instar of Plutella xylostella were put. Test was repeated twice for one concentration. Two days after putting, the number of dead larvae was examined to determine the mortality (%). The results are shown in Table 5. Test Example 5: Effect against nymphae of Tick ( Ornithodoros moubata ) To a glass laboratory dish (9 cm diameter), 1 ml of 200 ppm acetone solution of the compound of the present invention shown in Tables 1 to 3 (corresponding to 200 g of the compound) was added dropwise. A film of the compound was formed inside of the glass laboratory dish by air-drying. Into the thus treated glass dish, ten nymphae of third instar of Ornithodoros moubata , a species belonging to Tick, were put. Ten days after putting, the number of dead nymphae was examined to determine the mortality (%). The test was repeated twice for one concentration. The results are shown in Table 6. Compound No. Mortality (%) 13 100 19 " 36 " 39 " 51 " 72 " 77 " 97 " 103 " 108 " 125 " 128 " 134 " 151 " 168 "

Claims: Claims for the following Contracting States : AT, BE, CH, DE, FR, GB, IT, LI, LU, NL A pyrazole derivative represented by the following formula (I): wherein R¹ represents a C₁-C₄ alkyl group; R² represents a hydrogen atom, a C₁-C₄ alkyl group, a C₃-C₆ cycloalkyl group or a C₁-C₄ haloalkyl group; and R³ represents wherein R⁴ represents wherein R⁵, R⁶ and R⁷ represents respectively a hydrogen atom, a C₁-C₄ alkyl group or a phenyl group, R⁸ and R⁹ represent respectively a hydrogen atom, a halogen atom, a C₁-C₈ alkyl group, a C₃-C₅ alkenyl group, a C₃-C₅ alkynyl group, a C₃-C₆ cycloalkyl group, a C₂-C₄ alkoxylalkyl group, a C₁-C₄ alkoxy group, a C₁-C₄ haloalkoxy group, a nitro group, a trifluoromethyl group, a phenyl group, a benzyl group, a phenoxy group, a benzyloxy group, an amino group, a C₁-C₄ alkylamino group, a C₂-C₈ dialkylamino group, a cyano group, a carboxyl group, a C₂-C₅ alkoxycarbonyl group, a C₄-C₇ cycloalkoxycarbonyl group, a C₃-C₉ alkoxyalkoxycarbonyl group, a C₂-C₆ alkylaminocarbonyl group, a C₃-C₁₁ dialkylaminocarbonyl group, a piperidinocarbonyl group, a morpholinocarbonyl group, a trimethylsilyl group, a C₁-C₄ alkylthio group, a C₁-C₄ alkylsufinyl group, or a C₁-C₄ alkylsufonyl group; and X represents a hydrogen atom, a halogen atom, a C₁-C₄ alkyl group; a cyano group or a C₁-C₅ alkylamino group. An insecticidal and miticidal composition comprising, as the effective ingredient, an insecticidally and miticidally effective amount of a pyrazole derivative as defined in claim 1 and insecticidally and miticidally acceptable adjuvant(s). A method of controlling insects and mites which comprises applying an insecticidally and miticidally effective amount of a pyrazole derivative as defined in claim 1 to eggs or larvae of said insects or mites. A process for producing a pyrazole derivative as in claim 1 which comprises reacting a compound represented by the following formula (II): wherein R¹, R² and X are as defined in claim 1, Z represents a chlorine atom, a bromine atom, a hydroxyl group, a methoxy group, an ethoxy group or a propoxy group, and Y represents an oxygen atom or a sulfur atom with a compound represented by R⁴H wherein R⁴ is as defined in claim 1. Claims for the following Contracting State : ES A process for producing a pyrazole derivative represented by the following formula (I): wherein R¹ represents a C₁-C₄ alkyl group; R² represents a hydrogen atom, a C₁-C₄ alkyl group, a C₃-C₆ cycloalkyl group or a C₁-C₄ haloalkyl group; and R³ represents wherein R⁴ represents wherein R⁵, R⁶ and R⁷ represent respectively a hydrogen atom, a C₁-C₄ alkyl group or a phenyl group, R⁸ and R⁹ represents respectively a hydrogen atom, a halogen atom, a C₁-C₈ alkyl group, a C₃-C₅ alkenyl group, a C₃-C₅ alkynyl group, a C₃-C₆ cycloalkyl group, a C₂-C₄ alkoxyalkyl group, a C₁-C₄ alkoxy group, a C₁-C₄ haloalkoxy group, a nitro group, a trifluoromethyl group, a phenyl group, a benzyl group, a phenoxy group, a benzyloxy group, an amino group, a C₁-C₄ alkylamino group, a C₂-C₈ dialkylamino group, a cyano group, a carboxyl group, a C₂-C₅ alkoxycarbonyl group, a C₄-C₇ cycloalkoxycarbonyl group, a C₃-C₉ alkoxyalkoxycarbonyl group, a C₂-C₆ alkylaminocarbonyl group, a C₃-C₁₁ dialkylaminocarbonyl group, a piperidinocarbonyl group, a morpholinocarbonyl group, a trimethysilyl group, a C₁-C₄ alkylthio group, A C₁-C₄ alkylsulfinyl group, or a C₁-C₄ alkylsufonyl group; X represents a hydrogen atom, a halogen atom, a C₁-C₄ alkyl group, a cyano group or a C₁-C₅ alkylamino group; which comprises reacting a compound represented by the following formula (II): wherein R¹, R² and X are as defined above, Z represents a chlorine atom, a bromine atom, a hydroxyl group, a methoxy group, an ethoxy group or a propoxy group, and Y represents an oxygen atom or a sulfur atom with a compound represented by R⁴H wherein R⁴ is as defined above. An insecticidal and miticidal composition comprising, as the effective ingredient, an insecticidally and miticidally effective amount of a pyrazole derivative as defined in claim 1 and insecticidally and miticidally acceptable adjuvant(s). A method of controlling insects and mites which comprises applying an insecticidally and miticidally effective amount of a pyrazole derivative as defined in claim 1 to eggs and larvae of said insects or mites.

Inventors: FUKUCHI, TOSHIKI, OKADA, ITARU, OKUI, SHUKO, TAKAHASHI, YOJI
Applicants: MITSUBISHI KASEI CORPORATION
Application year: 1988
Main classification: C07D231
IPC codes: A01N43, C07D405, C07D231