1,2,4-oxidiazole and thiadiazole esters and composition...

Details 1,2,4-oxidiazole and thiadiazole esters and composition... 1,2,4-oxidiazole and thiadiazole esters and composition...

C - Chemistry, Metallurgy

07

D

260/301, 260/303

C07D 271/06 (2006.01) C07D 285/08 (2006.01)

Patent

CA 1068280

ABSTRACT OF THE DISCLOSURE 1,2,4-Oxadiazole and thiadiazole esters are disclosed of the general formula Image or Image wherein A is oxygen or sulfur, R1 is lower alkyl having 1-6 carbon atoms, benzyl, substituted benzyl wherein the substituent is nitro, lower alkyl having 1-6 carbon atoms or halogen, lower alkenyl having 1-6 carbon atoms, furymethyl, cyclopentenylmethyl, cyclopentylmethyl, cyclohexenymethyl, cyclohexylmethyl and R2 is the residue of a carboxylic acid selected from (+)- trans-chrysanthemumic acid, (?)-cis, trans-chrysanthemumic acid, dimethylcyclopropanecarboxylic acid, tetramethylcyclopropane- carboxlic acid, dihalocycopropanecarboxylic acid, tetrahalo- cyclopropanecarboxylic acid and fenethric acid. These esters are useful as insecticides.

313978

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