Abstract: Insecticide formulations containing an organophosphorus insecticide on clay carriers are stabilized by incorporating from about 0.5 to about 10 weight percent of a lactone in said formulation.

Abstract: 0,0-Dimethyl 0-[(4-tert-butylsulfinyl)-2-methoxyphenyl]phosphorothioate and 0,0-dimethyl 0-[(p-tert-amylsulfinyl)phenyl]phosphorothioate are active in the kill and control of black cutworms.

Abstract: Compounds are prepared which correspond to the formula ##STR1## wherein Y represents trichloromethyl, dichloromethyl or dichlorofluoromethyl; X represents chloro, bromo or fluoro and n represents an integer of 1 or 2. These compounds and compositions containing them have been found to be useful as agronomic fungicides, especially useful and valuable for the control of soil-borne plant disease organisms which attack the roots of plants.

Abstract: Compounds are prepared corresponding to the formula ##STR1## wherein Y represents chloro or R'; R represents ##STR2## wherein X independently represents alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkyl sulfonyl of 1 to 4 carbon atoms, trifluoromethyl, chloro, fluoro or bromo; n represents an integer of 0 to 2 or X.sub.n represents 3,4-methylenedioxy and R' represents R with the proviso that R and R' can be the same or different. The compounds are useful as intermediates for the preparation of insecticidal substituted pyridine methyl esters of cyclopropane carboxylic acids.

Abstract: Compounds are prepared which correspond to the formula ##STR1## wherein R represents a nitrogen containing heterocyclic radical corresponding to one of the formulae ##STR2## each X independently represents chloro, fluoro, bromo, nitro, alkyl of 1 to 4 carbon atoms, amino, mono- or dialkylamino wherein each alkyl group independently contains from 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkylsulfinyl of 1 to 4 carbon atoms, alkylsulfonyl of 1 to 4 carbon atoms, cyano, trifluoromethyl, trichloromethyl, phenoxy or substituted phenoxy of the formula ##STR3## wherein each Z independently represents chloro, fluoro, bromo, nitro, cyano, alkoxy of 1 to 4 carbon atoms or alkylthio of 1 to 4 carbon atoms, with the proviso that when either n is 2 or 3, all X groups are sterically compatible with each other and all Z groups are sterically compatible with each other; Y represents oxygen or sulfur; each n can independently represent an integer of from 0 to 3, inclusive; R.sup.

Abstract: Compounds are prepared which correspond to the formula ##STR1## wherein R represents a nitrogen containing heterocyclic radical corresponding to one of the formulae ##STR2## each X independently represents chloro, fluoro, bromo, nitro, alkyl of 1 to 4 carbon atoms, amino, mono- or dialkylamino wherein each alkyl group independently contains from 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkylsulfinyl of 1 to 4 carbon atoms, alkylsulfonyl of 1 to 4 carbon atoms, cyano, trifluoromethyl, trichloromethyl, phenoxy or substituted phenoxy of the formula ##STR3## wherein each Z independently represents chloro, fluoro, bromo, nitro, cyano, alkoxy of 1 to 4 carbon atoms or alkylthio of 1 to 4 carbon atoms, with the proviso that when either n is 2 or 3, all X groups are sterically compatible with each other and all Z groups are sterically compatible with each other; Y represents oxygen or sulfur; each n can independently represent an integer of from 0 to 3, inclusive; R.sup.

Abstract: Compounds are prepared corresponding to the formula ##STR1## wherein Y represents chloro or R'; R represents ##STR2## wherein X independently represents alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkyl sulfonyl of 1 to 4 carbon atoms, trifluoromethyl, chloro, fluoro or bromo; n represents an integer of 0 to 2 or X.sub.n represents 3,4-methylenedioxy and R' represents R with the proviso that R and R' can be the same or different. The compounds are useful as intermediates for the preparation of insecticidal substituted pyridine methyl esters of cyclopropane carboxylic acids.

Abstract: Compounds are prepared corresponding to the formula ##STR1## wherein Y represents chloro or R'; R represents ##STR2## wherein X independently represents alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkyl sulfonyl of 1 to 4 carbon atoms, trifluoromethyl, chloro, fluoro or bromo; n represents an integer of 0 to 2 or X.sub.n represents 3,4-methylenedioxy and R' represents R with the proviso that R and R' can be the same or different. The compounds are useful as intermediates for the preparation of insecticidal substituted pyridine methyl esters of cyclopropane carboxylic acids.

Abstract: Compounds are prepared which correspond to the formula ##STR1## wherein R represents hydrogen, chloro, bromo or trifluoromethyl; n represents an integer of from 1 or 2 with the proviso that when R is trifluoromethyl, n is 1; R.sup.1, R.sup.2 and R.sup.3 each independently represent ethyl, n-propyl, n-butyl, isobutyl, ethynyl, vinyl or ethoxymethyl or R.sup.2 and R.sup.3 taken together form an alkylene bridge of 2 to 4 carbon atoms and X represents a non-phytotoxic anion. The compounds have been found to be active plant growth regulatory control agents.

Abstract: Optionally active isomers of substituted pyridine methyl esters of cyclopropane carboxylic acids thereof are prepared and have been found to exhibit a higher degree of insecticidal activity than their unresolved parents and compositions containing said compounds are so employed as insecticides.

Abstract: A compound having the formula ##STR1## wherein R is halogen, trichloromethyl, trifluoromethyl, nitro, cyano, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy; X is NH, O or S and n is an integer of from 1 to 5, which is useful as a fungicide on plants and other substrates susceptible to fungicidal attack.

Abstract: 3,5-Dichlorocumene is separated from a mixture comprising 3,5-dichlorocumene and 2,4-dichlorocumene by a process comprising contacting the mixture with an isopropyl group acceptor, in the presence of a catalyst comprising:(1) at least one Lewis acid compound, and(2) a proton source.The isopropyl group of 2,4-dichlorocumene is preferentially transferred, as compared to the isopropyl group of 3,5-dichlorocumene, to the acceptor forming a reaction product comprising an acceptor bearing the isopropyl group, 3,5-dichlorocumene and m-dichlorobenzene. 3,5-Dichlorocumene is readily separated from this reaction product by any conventional technique, typically distillation.

Abstract: Reducing trichloromethyl substituent on pyridine ring to dichloromethyl using a copper catalyst and a reducing agent.

Abstract: Compounds are prepared corresponding to the formula ##STR1## wherein Y represents chloro or R'; R represents ##STR2## wherein X independently represents alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkyl sulfonyl of 1 to 4 carbon atoms, trifluoromethyl, chloro, fluoro or bromo; n represents an integer of 0 to 2 or X.sub.n represents 3,4-methylenedioxy and R' represents R with the proviso that R and R' can be the same or different. The compounds are useful as intermediates for the preparation of insecticidal substituted pyridine methyl esters of cyclopropane carboxylic acids.

Abstract: 2,3-Dichloro-5-trichloromethylpyridine is produced by selective liquid phase chlorination of 2-chloro-5-trichloromethylpyridine.

Abstract: A method of producing 2,4,5-trichlorophenol with low levels of the impurity 2,3,7,8-tetrachlorodibenzo-.rho.-dioxin.

Abstract: Insecticidal compositions containing a mixture of 0,0-diethyl 0-(3,5,6-trichloro-2-pyridinyl)phosphorothioate and 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane carboxylic acid:cyano(6-phenoxy-2-pyridinyl)methyl ester are disclosed. Such compositions are useful in the kill and control of insects, particularly insects of the Lepidoptera order and especially of the genus Heliothis.

Abstract: Insecticidal compositions containing a mixture of O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl)-phosphorothioate and 2,2,3,3-tetramethylcyclopropanecarboxylic acid:cyano(3-phenoxyphenyl)methyl ester are disclosed. Such compositions are useful in the kill and control of insects, particularly insects of the Lepidoptera order and especially of the genus Heliothis.

Abstract: Insecticidal compositions containing a mixture of O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl)-phosphorothioate and 4-chloro-.alpha.-(1-methylethyl)-benzeneacetic acid:cyano(6-phenoxy-2-pyridinyl)methyl ester are disclosed. Such compositions are useful in the kill and control of insects, particularly insects of the Lepidoptera order and especially of the genus Heliothis.

Abstract: Compounds are prepared which correspond to the formula ##STR1## wherein R represents a nitrogen containing heterocyclic radical corresponding to one of the formulae ##STR2## each X independently represents chloro, fluoro, bromo, nitro, alkyl of 1 to 4 carbon atoms, amino, mono- or dialkylamino wherein each alkyl group independently contains from 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkylsulfinyl of 1 to 4 carbon atoms, alkylsulfonyl of 1 to 4 carbon atoms, cyano, trifluoromethyl, trichloromethyl, phenoxy or substituted phenoxy of the formula ##STR3## wherein each Z independently represents chloro, fluoro, bromo, nitro, cyano, alkoxy of 1 to 4 carbon atoms or alkylthio of 1 to 4 carbon atoms, with the proviso that when either n is 2 or 3, all X groups are sterically compatible with each other and all Z groups are sterically compatible with each other; Y represents oxygen or sulfur; each n can independently represent an integer of from 0 to 3, inclusive; R.sup.