SUBSTITUTED TETRAZOLINONES

Abstract: A compound having the formula where X, X¹ and X² are oxygen or sulfur; Y is oxygen, sulfur or NH; R¹ is C₁-C₁₂ alkyl, C₇-C₉ aralkyl, phenyl, C₂-C₄ alk­ enyl, phenyl substituted with halogen, C₁-C₄ alkyl, C₁-C₂ haloalkyl, C₁-C₄ alkoxy, C₁-C₄ haloalkoxy, C₁-C₄ alkylthio, C₁-C₄ haloalkylthio, C₂-C₅ alkoxycarbonyl, phenoxy, nitro or cyano, phenoxy substituted with halogen, C₁-C₄ alkyl, C₁-C₂ haloalkyl, C₁-C₄ alkoxy, C₁-C₄ haloalkoxy, C₁-C₄ alkylthio, C₁-C₄ haloalkylthio, C₂-C₅ alkoxycarbonyl, nitro or cyano or C₇-C₉ aralkyl substituted on the phenyl ring with halogen, C₁-C₄ alkyl, C₁-C₂ haloalkyl, C₁-C₄ alkoxy, methylenedioxy, nitro or cyano; R² is hydrogen, C₁-C₄ alkyl, phenyl or phenyl substituted with C₁-C₄ alkyl, C₁-C₄ alkoxy, halogen nitro or cyano; and R³ and R⁴ may be the same or different and are C₁-C₄ alkyl is disclosed. The application is also directed to a pesticidal com­ position comprising the above-recited compound and a car­ rier. Finally, a method for controlling pests by employing a pesticidally effective amount of the above-recited com­ pound is described.

Description: SUBSTITUTED TETRAZOLINONES The compounds of this invention are tetrazolinones having the structural formula EMI1.1 where X, XÚ and Xê are the same or different and are oxygen or sulfur; Y is oxygen, sulfur of NH; R1 is Cl-C12 alkyl, C7-Cg aralkyl, C-C4 alkenyl, phenyl, phenyl substituted with halogen, C1-C4 alkyl, C1-C2 haloalkyl, C1-C4 alkoxy, C1-C4 haloalkoxy, C1-C4 alkylthio, C1-C4 haloalkylthio, C2- C5 alkoxycarbonyl, phenoxy, nitro or cyanc, phenoxy substituted with halogen, C1-C4 alkyl, C1-C2 haloalkyl, C1-C4 alkoxy, C1-C4 haloalkoxy, C1-C4 alkylthio, C1-C4 haloalkylthio, C2-C5 alkoxycarbonyl, nitro or cyano or C7-Cg aralkyl substituted on the phenyl ring with halogen, C1-C4 alkyl, C1-C2 haloalkyl, C1-C4 alkoxy, methylendioxy, nitro or cyano; Rê is hydrogen, C1-C4 alkyl, phenyl or phenyl substituted with C1-C4 alkyl, C1-C4 alkoxy, halogen, nitro or cyano; and R and R may be the same or different and are C1-C4 alkyl. Preferably, X2 is sulfur, RI is C1-C8 alkyl, C7-C8 aralkyl, phenyl, allyl, phenyl substituted with fluorine, chlorine, bromine, C1-C4 alkyl, C1-C3 alkoxy, phenoxy, nitro, cyano, trihalomethyl, methylthio or trichloromethylthio, phenoxy substituted with C1-C4 alkyl, trifluoromethyl, methoxy, methylthio, fluorine, chlorine, nitro or cyano or benzyl substituted with C1-C2 alkyl, fluorine, chlorine, bromine, C-C2 alkoxy, trifluoromethyl, 22 methylenedioxy, nitro or cyano; R is hydrogen, C1-C4 alkyl or phenyl substituted with C1-C2 alkyl, C1-C2 alkoxy, methylenedioxy, fluorine, chlorine, bromine, nitro or cyano; R3 and R4 are the same or different and are C1-C3 alkyl, and Y is oxygen or sulfur. Most preferably X and Y oxygen; RI is C1-C4 alkyl, benzyl, phenyl or phenyl substituted with fluorine, chlorine, methyl, methoxy, nitro, cyano or trifluoromethyl; R2 is hydrogen or methyl; R3 and R4 are the some or different CfC3 alkyl, and Y is oxygen or sulfur. Most preferably X and Y oxygen; R is C1-C4 alkyl, benzyl, phenyl or phenyl substituted with fluorine, chlorine, methyl, methoxy, nitro, cyano or trifluoromethyl; Rê is hydrogen or methyl; R and R4 are the same or different and are methyl or ethyl; and XÚ is sulfur. The above compounds are useful as pesticides especially in the control of insects and mites. As an insecticide, the definitions of the substituents given above apply. That is, the compounds defined above are useful in the control of insects with the preferred and most preferred compound similarly preferred and most preferred as insecticides. In the case where the compounds of this invention are employed as miticides it is preferred that the compound of this invention (compound I) include substituents which have the following meanings: R1 is benzyl, phenyl, 2-fluorophenyl, 3-chlorophenyl, 4-iodophenyl, phenoxyphenyl or ethoxycarbonyiphenyl; R2 is hydrogen, methyl or phenyl; R3 and R4 are the same or different and are methyl or ethyl; and X is oxygen. Even more preferably, the compounds of this invention useful as a miticide are defined by R1 being benzyl, phenyl or ethoxycarbonyiphenyl; and R2 being hydrogen or phenyl. A reference of interest is Japanese Patent Publication No. 36049, Sept. 14, 1982, in which certain substituted 5-oxotriazolinemethylphosphoro dithioates have insecticidal and miticidal activity are disclosed. The chemicals of this invention can be prepared by using as starting materials 1-substituted- 5(4H)tetrazolinones. These compounds are known and can be prepared by known procedures. For example, 1-phenyl-5(4H)-tetrazolinone can be prepared by the method of Horwitz et al, J. A. C. S. 81 3076 (1959), by reacting phenylisocyanate with sodium azide in the presence of aluminum chloride. Alternatively, it can be prepared by reacting phenyl isocyanate with trimethylsilyl azide; see Tsuge et al, J. Org. Chem. 45 5130 (1980). The compounds of this invention may be prepared by reacting the selected 1-substituted-5(4H)tetrazolinone with an aldehyde and thionyl chloride to give the chloroalkyl derivative having the formula EMI3.1 where R1 and R2 have the meaning given for compound I. Compound II is reacted with a salt of an O,O-dialkyldithiopnosphate having the formula EMI4.1 where M is a cation based on an alkali metal or ammonia and R3 and R4 are the same or different and are C1-C4 alkyl, and X1 and Y have the above meanings. The aldehyde should be present in an amount at least equivalent to the tetrazolinone or about up to one equivalent excess. At least one equivalent and up to one equivalent excess of thionylchloride should be employed. In any case, an amount of thionylchloride at least equivalent to the amount of aldehyde should be used, and preferably in a 10% molar excess. The first step of the process is carried out at a temperature between 0" and 1300C, preferably between 700 and 1200 C. Generally a solvent inert to the reactants is used. Suitable solvents for the reaction are ethers, such as diethylether, diisopropylether, dioxane, dimethoxyethane and tetrahydrofuran; amides, such as N,N-dialkylated carboxamides; aliphatic, aromatic and halogenated hydrocarbons, such as hexane, benzene, toluene, xylene, methylene chloride, chloroform, carbon tetrachloride, and chlorobenzene; nitriles, such as acetonitrile; and dimethylsulfoxide. In the second step of the process, a salt of the O,O-dialkyldithiophosphate, such as the sodium, potassium or ammonium salt, is employed. The salt can be used in equivalent amount or up to 50% excess based on the chloroalkyl intermediate. The reaction is carried out at a temperature from -200 to 1000 C, preferably from room temperature to 500 and in a suitable solvent, such as one of those listed above, or in a ketone solvent such as acetone or methyl ethyl ketone. In addition, alcohols such as methyl or ethyl alcohol can be used successfully. EXAMPLE 1 Preparation of - chloromethyl-i -ph enyl-5 (4H ) -tetrazolinone A mixture of 7.7 g (0.0475 mol) of 1-phenyl-5(4H)-te$ra- zolinone, 2.1 g (0.07 mol) of paraformaldehyde and 5.8 ml (9.5 g, 0.08 mol) of thionyl chloride in 40 ml of toluene was heated to 75-800C whereupon evolution of HCl took place. Heating was continued for another 1.25 hrs., during which time the temperature rose to 1100C. The solution was decanted and the remaining solid was washed with a small amount of toluene. The toluene solutions were combined and concentrated under reduced pressure. The last traces of solvent were removed by warming to 400C at 0.2 mm Hg pressure, giving a yellow oil, wt. 10.43 g. This was taken up in ether and the solution filtered. The filtrate was concentrated under reduced pressure and finally warmed to 400C at 0.15 mm Hg pressure. The resulting product (9.7 g; 97%) was a thick yellow oil. The infrared (IR) spectrum indicated carboxyl absorption at 1740 cm 1 (rather than 1710 cm 1 for the starting material). Nuclear magnetic resonance (NMR) analysis showed a sharp singlet at 5.6 ppm. EXAMPLE 2 Preparation of 4- (1-chioroethyl )-1-phenyl-5 (4H ) -tetrazolinone To a suspension of 2.5 g (0.015 mol) of 1-phenyl-5(4H)-tetrazolinone in 15 ml of toluene were added 1.4 ml (1.1 g, 0.025 mol) of acetaldehyde and 2.0 ml (3.3 g, 0.028 mol) of thionyl chloride. The mixture was heated to 70-75"C, at which temperature hydrogen chloride gas was evolved. Heating was continued for 1.5 hrs. at 80-850C. The HCl evolution subsided during this time, and most of the solid dissolved. The mixture was filtered and the filtrate evaporated to dryness. The oil was taken up in diethyl ether, the solution filtered and the solvent removed from the filtrate, wt. 3.15 g (93%). The structure was confirmed by the IR and NMR analyses. EXAMPLE 3 Preparation of O,O-Diethyl S- [1 -phenyl- 5 (4H )-tetrazolinone-4-methyl] phosphorodithioate (Cpd. No. 1) To 2.4 g (0.0114 mol) of 4-chloromethyl-1-phenyl-5(4H)-tetra- zolinone (of Example 1) in 25 ml of acetonitrile was added 3.7 g (0.0182 mol) of ammonium O,O-diethyldithiophosphate, and the mixture was warmed to 40-500C for two hours, during which time a white precipitate was formed. This was removed by filtration, and the filtrate was evaporated to dryness. Toluene was added, and the mixture was extracted three times with 15 ml portions of water. The toluene solution was dried with anhydrous magnesium sulfate and concentrated on a rotary evaporator. The residue was then stripped of solvent at 49 (0.15 mm Hg) giving 3.49 g (85% yield) of a yellow oil which was identified as the product by IR.and NMR analyses. EXAMPLE 4 Preparation of O,O-Diethyl S-(l-pheny]-5(4H)-tetrazolinone-4-(l- ethyl)]phosphorodithioate (Cpd. No. ) 4-(1-chloroethyl)-1-phenyl-5(4H)-tetrazolinone (of Example 2) (3.0 g, 0.013 mol) and 2.8 g (0.014 mol) of ammonium O,O-diethyldithiophosphate were combined in 25 ml of acetonitrile, and the mixture was heated for 1 hour at 40-450C and then stirred for 2 hours at room temperature. The reaction mixture was filtered and the filtrate evaporated to dryness. The residual oil was taken up In toluene, the solution filtered in order to remove some insoluble solid, and the filtrate was washed three times with 15 ml portions of water. The toluene solution was dried over anhydrous magnesium sulfate, and the solvent was removed at 400C and 0.15 mm Hg pressure; wt. 3.15 g (64% yield) of a yellow oil. The structure was confirmed by IR and NMR analyses. EXAMPLE 5 Compounds No. 3-27 Additional compounds were prepared applying essentially the experimental approach previously described, all compounds were analyzed for determination of their key structural configuration and functional groups. The analytical determinations were substantially confirmed by nuclear magnetic resonance and infrared methods. These compounds are listed in Table I. TABLE I EMI7.1 Cpd. No. RÚ Rê R R4 X XÚ Y Xê 3 n-C8H17 H C2H5 C2H5 O S O S 4 CH2C6H5 H " " " " " S 5 C6H5 H CH3 CH3 " O S S 1 " H C2H5 C2H5 " S O S 2 " CH3 " " " " " S 6 " C2H5 " " " " " S 7 2-F-C6H4 H " " " " " S 8 2-Cl-C6H4 " " " " " " S 9 3-Cl-C6H4 " " " " " " S 10 4-Cl-C6H4 " " " " " " S 11 3,4-Cl2-C6H3 " " " " " " S 12 2,4,5-Cl3-C6H2 " " " " " " S 13 4-I-C6H4 " " " " " " S 14 4-CH3-C6H4 " " " " " " S 15 3,4-(CH3)2-C6H3 " " " " " " S 16 2,4,6-(CH3)3-C6H2 " " " " " " S 17 3-CF3-C6H4 " " " " " " S 18 4-CH3O-C6H4 " " " " " " S 19 2,4-(CH3O)2-C6H3 " " " " " " S 20 2,5-(CH3O)2-C6H3 " " " " " " S 21 3,4,5-(CH3O)3-C6H2 " " " " " " S 22 2-C2H5O-C6H4 " " " " " " S 23 4-C6H5O-C6H4 " " " " " " S 24 2-C2H5OCO-C6H4 " " " " " " S 25 4-NO2-C6H4 " " " " " " S 26 C6H5 " i-C3H7 i-C3H7 " " " S 27 " " n-C4H9 n-C4H9 " " " S Further compounds having the above-defined structural formula are prepared essentially in accordance with the procedures of the above examples; the substituents R1, R2, R3, R4, X, X1 and Y having the values indicated in Table II below: TABLE II RÚ Rê R R4 X XÚ Xê Y CH3 H C2H5 C2H5 O O S NH 4-n-C4H9-C6H4 H C2H5 C2H5 O S " O 2-(CH3O)-5-NO2-C6H3 H C2H5 C2H5 O " " " 3-CN-C6H4 H C2H5 C2H5 O " " " 4-n-C4H9O-C6H4 H C2H5 C2H5 O " " " C6H5 n-C4H9 C2H5 C2H5 O " " " C6H5 H C2H5 C2H5 C2H5 S " " NH 4-(2-CH2-4-CN-C6H3O)C6H4 H CH3 " " " " O 3-(3-CH3O-4-CF3-C6H3O)C6H4 H " CH3 O " " " 4-(2-CH3S-4-Cl-C6H3O)C6H4 H " " " " " " 4-(2-F-4-NO2-C6H3O)C6H4 H " " " " " " CH3 H C2H5 C2H5 0 S S 0 (CH3C H C2H5 C2H5 O S S O CH2=CH 2-CNC6H4 C2H5 C2H5 O S O O CH2=CHCH2 3-FC6H4 C2H5 C2H5 O S S O 4-Cl-C6H4C(CH3)2 4-(CH3)C-C6H4 C2H5 C2H5 O S S O 2-F-C6H4CH2 2,5-(CH3)2-C6H3 C2H5 C2H5 O S S O 3-CH3-C6H4CH2 4-CH3O-C6H4 C2H5 C2H5 O S S O 4-C4H9-C6H4CH2 2-C4H9O-C6H4 C2H5 C2H5 O S S O 3-CF3H6H4CH2 4-ClC6H4 C2H5 C2H5 O S S O 2-CH3O-C6H4CH2 3-BrC6H4 C2H5 C2H5 O S S O 4-C4H9O-C6H4CH2 3-NO2-C6H4 C2H5 C2H5 O S S O 4-ClCH2CH2-C6H4CH2 C6H5 C2H5 C2H5 O S S O 3,4-CH2O2-C6H3CH2 H C2H5 C2H5 O S S O 4-NO2-C6H4CH2 4-NO2C6H4 C2H5 C2H5 O S S O 3-CN-C6H4CH2 CH3 C2H5 C2H5 O S S O CH3 H n-C3H7 C2H5 O O S S For practical applications, especially when the compounds are used as pesticides, the compounds can be used alone, or dissolved or suspended in suitable liquid carriers such as water, alcohols, ketones, phenols, toluene or xylenes. Optionally, one or more surface active agents and/or inert diluents can be added. Alternatively, the compounds alone or in combination with one or more liquid carriers may be absorbed onto an inert solid carrier. Thus, the compounds of this invention may be employed as a pesticidal composition in the form of dusts, granules, wettable powders, pastes, emulsifiable concentrates or water soluble solids. For example, compounds of this invention, employed as pesticides, can be applied as dusts when admixed with or absorbed on powdered solid carriers, such as the various mineral silicates, e.g., mica, talc, pyrophyllite and clays, or as liquids or sprays when in a liquid carrier, as in solution in a suitable solvent such as acetone, benzene or kerosene, or dispersed in a suitable non-solvent medium, for example, water. In protecting plants (the term in cludes plant parts), the compounds are preferably applied as aqueous emulsions containing a surface-active dispersing agent which may be an anionic, nonionic or cationic surface-active agent. Such surface-active agents are well known and reference is made to U . S. Pat. No. 2,547,724, columns 3 and 4, for detailed examples of the same. The chemicals may be mixed with such surface-active dispersing agents, with or without an organic solvent, as concentrates for subsequent addition of water to make aqueous suspensions of the chemicals of the desired concentration. The compounds may be admixed with powdered solid carriers, such as mineral silicates together with a surface-active dispersing agent so that a wettable powder is obtained which may then be applied directly to loci to be protected, or may be shaken with water to form a suspension of the chemical (and powdered solid carrier) in water for application in that form. Granular formulations of these chemicals are prepared using a granular or pelletized form of carrier such as granular clays, vermiculite, charcoal or corn cobs. Granular formulations are then applied by broadcasting, side dressing, soil incorporation or seed treatment. The chemicals may be applied to loci to be protected by the aerosol method. Solutions for aerosol treatment may be prepared by dissolving the chemical directly in the aerosal carrier which is liquid under pressure but which is a gas at ordinary temperature (e.g., 20 C) and atmospheric pressure, or the aerosol solution may be prepared by first dissolving the chemical in a less volatile solvent and then admixing such solution with the highly volatile liquid aerospl carrier. The compounds may be used admixed with carriers that are active themselves, for example: insecticides, acaricides, fungicides, or bactericides. The pesticidal formulations of this invention contain amounts of the compounds effective for the particular method of control. These amounts can vary widely; typically, the range is from 0.1 to 95% active ingredient. Spray dilutions can contain from a few parts per million to full strength concentrates applied by ultra low volume techniques. Concentrations per unit area, where plants are the area treated, can vary from 0.01 to 50 kilograms per hectare, and preferably from 0.1 to 10 kilograms per hectare. To control pests, sprays of the compounds may be applied to the pests directly, to plants upon which they feed, or both. Another effective method of attack involves application of the compounds to the soil or other medium in which insects live. Harmful insects and mites attack a wide variety of plants, including both ornamental and agricultural plants and inflict damage by consuming foliage, withdrawing vital juices from the plants, secreting toxins and often by transmitting diseases. The compounds utilized in this invention can prevent such damage. The methods of application, and the selection and concentration of these compounds will, of course, vary depending upon such circumstances as area, climate, plant tolerance, etc. One skilled in the art can select the proper approach by simple experiments. As stated above the compounds of this invention are especially useful as insecticides and miticides. They may be applied to the plant itself (foliar insecticide or miticide) or into the soil (soil insecticide or miticide). Insecticidal and miticidal acticity were determined as described in the following examples. EXAMPLE 6 Control of Tobacco Budworm A mixture was prepared of 0.6 g of compound No. 1, 10 ml acetone, four drops of a surfactant (Tween 20 (trademark]; ethoxylate sorbitan monolaurate) and water (ca. 90 ml) resulting in a solution wherein said compound is present at 6000 parts per million (ppm) concentration. To five plastic cells was added about 5 g of wheat germ/soyflower diet and the diet was impregnated with 0.2 ml of the above solution. Additional cells (five each) were prepared containing said diet and 0.2 ml of a 1,000 ppm and 500 ppm solution of said compound, respectively, and into each cell a tobacco budworm larva was placed. After six days, the cells were inspected and percent control was noted with the following results: Concentration, ppm 6,000 1,000 500 Control, X 80 37 16 The data Indicate that the compound (No. 1) of Example 3 is effective against tobacco budworm. Similar results are obtained when employing the compounds listed in Table I. EXAMPLE 7 Control of Corn Rootworm A solution was prepared as described in Example 6 containing the compound No. 1 at a 6,000 ppm concentration. Said solution was further diluted resulting in various concentrations of active ingredient as indicated in the Table below. Two corn seedlings are first soaked for one hour in a flask containing the solution having a certain concentration of active ingredient, and the seedling is transferred to a plastic bag containing a paper towel which had been treated with 5 ml of the respective same concentration. 18 hours after the bag had been closed, five 3rd instar corn rootworm larvae are placed in each bag, and after six days, the effectiveness of the compound on the corn rootworm larvae was determined. The results are listed below. Concentration, ppm 1,000 500 100 50 20 Control, X 100 100 100 78 78 It will be noted that compound No. 1 is a very effective insecticide for the control of corn rootworm. EXAMPLE 8 Control of Mites Following essentially the procedures of the previous examples a solution was prepared containing compound No. 1 at a 1000 ppm concentration. Two 10-day old cow pea plants were sprayed to run-off with that solution and then they were left to dry for one day. Thereafter, 25 mites were placed on each of two leaves per plant, the mites' area of movement being restricted by a circle of sticky material (Tanglefoot [trademarkl ) . After five days, the effect of the chemical on the mites was observed to be 100% control. . EXAMPLE 9 Control of Rice Plant Hopper Two 10-day old rice plants were treated in similar fashion as described in Example 8 except the rice plants were placed under a plastic hood, and ten adult plant hoppers were placed on each plant. The concentrations of active material (compound No. 1) and percent pest control are indicated below: Concentration, ppm 1000 500 Control, X 100 89 EXAMPLE 10 Control of Tobacco Budworm, Corn Rootworm, Mites and Rice Plant Hopper by Compounds 2-25 Following essentially the testing procedures outlined above, additional compounds of this invention were evaluated. The results are summarized in Table III. It should be noted that the percent control values were obtained at pesticide concentration of 1000 ppm except otherwise indicated. Also, the abbreviated column headings have these meanings: MI: mites; RPH: rice plant hopper; TBW: tobacco budworm; CR: Corn rootworm. TABLE III Percent Control of Mites and Insects Cpd. No. MI RPH TBW CR 1 100 100 37 100 2 90 100 60(1) 100 3 0 94(2) 0 100(2) 4 95 100 80(3) 100 5 0 60 20(3) 100 6 90 64(2) 20(1) 100 7 80 100(2) 0 100(2) 8 0 100(2) 0 100(2) TABLE III (cont'd.) Cpd. No. MI RPH TBW CR 9 80 95 20 69 10 0 80 80 100 11 0 80 80(3) 29 12 0 70 100(3) 13 80 60 20 38 14 0 100 20(3) 100 15 0 70 20(3) 56 16 0 90 33(3) 17 18 0 70 40(3) 43 19 0 -0 62 20 0 40 0 100(2) 21 0 70 56(3) 50(4) 22 0 100(2) 0 loo(2) 23 30 70 53(3) 62 24 90 100(2) 0 100(2) 25 26 27 Remarks: (1) at 6,000 ppm (2) at 5,000 ppm (3) at 3,000 ppm (4) at 500 ppm The results demonstrate the usefulness of the chemicals of this invention for combatting mites and insects. Similar results are obtained when employing the compounds listed in Table II. The above description and examples illustrate the scope and spirit of the instant invention. This description and examples will make apparent to those skilled in the art other examples within the scope of this invention. These examples are within the contemplation of this invention. Therefore, the invention should be limited only by the appended claims.

Claims: CLAIMS: 1. A compound characterised in that it has the structural formula EMI15.1 where X, XÚ and Xê are the same or different and are oxygen or sulfur; Y is oxygen, sulfur or NH; R1 is Cl-C12 alkyl, C7-Cg aralkyl, C2-C4 alkenyl, phenyl, phenyl substituted with halogen, C -C alkyl, C1-C2 haloalkyl, C1-C4 alkoxy, C1-C4 haloalkoxy, C1-C4 alkylthio, C1-C4 haloalkylthio, C2-C5 alkoxycarbonyl, phenoxy, nitro or cyano, phenoxy substituted with halogen, C1-C4 alkyl, C1-C2 haloalkyl, C1-C4 alkoxy, C1-C4 haloalkoxy, C1-C4 alkylthio, C1-C4 haloalkylthio, C2-C5 alkoxycarbonyl, nitro or cyano or C7-Cg aralkyl substituted on the phenyl ring with halogen, C1-C4 alkyl, C1-C2 haloalkyl, C1-C4 alkoxy, methylenedioxy, nitro or cyano; R is hydrogen, C1-C4 alkyl, phenyl or phenyl substituted with C1-C4 alkyl, C1-C4 alkoxy, methylenedioxy, halogen, nitro or cyano; and R3 and R4 are the same of different and are C1-C4 alkyl. 2. A compound according to claim 1 characterised in that X2 isl sulfur; R1 is C1-C8 alkyl, C7-C8 aralkyl, phenyl, allyl, phenyl substituted with fluorine, chlorine, bromine, C1-C4 alkyl, C1-C3 alkoxy, phenoxy, nitro, cyano, trthalomethyl, methylthio or trichloromethylthio, phenoxy substituted with C1-C4 alkyl, trifluoromethyl, methoxy, methylthio, fluorine, chlorine, nitro or cyano or benzyl substituted with C1-C2 alkyl, fluorine, chlorine, bromine, C1-C2 alkoxy, trifluoromethyl, methylenedioxy, nitro or cyano; R2 is hydrogen, C1-C4 alkyl, phenyl or phenyl substituted with C1-C2 alkyl, C1-C2 alkoxy, methylenedioxy, fluorine, chlorine, bromine, nitro or cyano; R3 and R4 are the same or different and are C1-C3 alkyl, and Y is oxygen or sulfur. 3. A compound according to claim 2 characterised in that X and Y are oxygen; R1 is C1-C4 alkyl, benzyl, phenyl or phenyl substituted with fluorine, chlorine, methyl, methoxy, nitro, cyano or trifluoromethyl; Rê is 4 hydrogen or methyl; R and R are the same or different and are methyl or ethyl; and X1 is sulfur. 4. A method for controlling insects characterised in that the method includes the use of an insecticidally effective amount of a compound as claimed in any of the preceding claims. 5. A method for controlling mites characterised in that the method includes the use of a miticidally effective amount of a compound having the structural formula EMI16.1 where R1 is benzyl, phenyl, 2-fluorophenyl, 3-chlorophenyl, 4-iodophenyl, phenoxyphenyl or ethoxycarbonylphenyl; Rê is hydrogen, methyl or phenyl; R and R4 are the same or different and are methyl or ethyl; XÚ and Xê are both sulfur; and Y is oxygen. 6. A method according to claim 5 characterised in that R1 is benzyl, phenyl or ethoxycarbonylphenyl; and R2 is hydrogen or phenyl. 7. A pesticideal composition characterised in that it comprises a compound as claimed in any of claims 1 to 3 and a carrier or diluent therefor. 8. A process for synthesizing a compound as claimed in any of claims 1 to 3 characterised in that the process comprises (a) reacting a l-substituted-5(4H) tetrazolinone with an aldehyde and thionyl chloride at a temperature between 80 and 130 0C to form an intermediate compound having the formula EMI17.1 and (b) thereafter reacting said intermediate compound with the salt of an 0,0-dialkyldithiophosphate having the formula EMI17.2 where M is a cation based on an alkali metal or ammonia, said reaction occurring at a temperature in the range of between -200 and 1000C. 9. A process according to claim 8 characterised in that said aldehyde is present in'an amount in the range of between equivalency and one equivalent excess based on the amount of tetrazolinone reacted. 10. A process according to claim 8 or claim 9 characterised in that said thionyl chloride is present in an amount in the range of between equivalency and one equivalent excess based on the amount of said tetrazolinone reacted. 11. A process according to any of claims 8 to 10 characterised in that said step (a) occurs at a temperature in the range of between 700C and 1200C and said step (b) occurs at a temperature in the range of between room temperature and 50 C. 12. A process according to any of claims 8 to 11 characterised in that step (a) of said reaction occurs in solution employing a solvent inert to the reactants. 13. A process according to claim 12 characterised in that said solvent is diethylether, diisopropylether, dioxane, dimethoxyethane, tetrahydrofuran, an N,N dialkylated carboxamide, hexane, benzene, toluene, xylene, methylene chloride, chloroform, carbon tetrachloride, chlorobenzene, acetonitrile or dimethylsulfoxide. 14. A process according to any of claims 8 to 13 characterised in that said salt of said 0,0-dialkyldithiophosphate is present in an amount in the range of equivalency and 50% excess based on the amount of said intermediate compound. 15. A process according to claim 14 characterised in that said salt of said 0.0-dialkyldithiophosphate is the sodium, potassium or ammonium salt of O.O-dialkyldithiophosphate. 16. A process according to any of claims 8 to 15 characterised in that said step (b) occurs in a solvent inert to said reactants. 17. A process according to claim 16 characterised in that said solvent is acetone, methyl, ethyl ketone, methanol, ethanol, diethylether, diisopropylether, dioxane, dimethyoxyethane, tetrahydrofuran, N,N- dialkylated carboxamides, hexane, benzene, toluene, zylene, methylene chloride, chloroform, carbon tetrachloride, chlorobenzene, acetonitrile or dimethylsulfoxide.

Inventors: COVEY, RUPERT A., MOORE, RICHARD C.
Applicants: UNIROYAL CHEMICAL COMPANY, INC.
Application year: 1984
Main classification: C07F9
IPC codes: C07F9, A01N57