Substituted pyridine methyl esters of cyclopropane carboxylic acids and their use as insecticides
AssigneeThe Dow Chemical Company
InventorsSudarshan K. Malhotra, Michael J. Ricks
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Abstract
Substituted pyridine methyl esters of cyclopropane carboxylic acids and the geometric and optical isomers thereof are prepared which correspond to the formula: ##STR1## 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, alkylsulfonyl of 1 to 4 carbon atoms, trifluoromethyl, 3,4-methylenedioxy, chloro, fluoro or bromo; n represents an integer of 0 to 2; Y represents oxygen or sulfur; R represents hydrogen, cyano or ethynyl and Z represents chloro, fluoro or bromo. These compounds have been found to exhibit a high degree of insecticidal activity and compositions containing said compounds are so employed.
Claims45
A compound corresponding to the formula ##STR28## 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, alkylsulfonyl of 1 to 4 carbon atoms, trifluoromethyl, 3,4-methylenedioxy, chloro, fluoro or bromo;
- n represents an integer of 0 to 2;
- Y represents oxygen or sulfur;
- R represents hydrogen, cyano or ethynyl and Z represents chloro, fluoro or bromo.
An insecticidal composition comprising as the active ingredient, an insecticidally effective amount of a compound corresponding to the formula ##STR29## 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, alkylsulfonyl of 1 to 4 carbon atoms, trifluoromethyl, 3,4-methylenedioxy, chloro, fluoro or bromo;
- n represents an integer of 0 to 2;
- Y represents oxygen or sulfur;
- R represents hydrogen, cyano or ethynyl and Z represents chloro, fluoro or bromo, in intimate admixture with an inert carrier therefor.
A method for the kill and control of insects which comprises contacting said insects or their habitat with a composition containing as the active ingredient, an insecticidally effective amount of a compound corresponding to the formula ##STR30## 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, alkylsulfonyl of 1 to 4 carbon atoms, trifluoromethyl, 3,4-methylenedioxy, chloro, fluoro or bromo;
- n represents an integer of 0 to 2;
- Y represents oxygen or sulfur;
- R represents hydrogen, cyano or ethynyl and Z represents chloro, fluoro or bromo, in intimate admixture with an inert carrier therefor.
Dependencies are inferred from the claim text.