| 摘要 |
Perhaloalkylvinylcyclopropanecarboxylates having the general formula <CHEM> are disclosed wherein one of Y and Z is a perhaloalkyl group having 1 to 4 carbon atoms and the other is hydrogen, halogen, lower alkyl, phenyl, phenylthio or benzyl, with the proviso that Y and Z may be combined to form a perhalocyclopentylidene group; R is halogen, hydroxy, lower alkoxy or -OR<1> in which R<1> represents an alcohol residue which forms an insecticidal ester when combined with chrysanthemic acid or a 3-(2,2-dihalovinyl)-2,2-dimethylcyclopropanecarboxylic acid; R<7> is hydrogen, lower alkylcarbonyl, lower alkoxycarbonyl or cyano with the proviso that when R is -OR<1>, R<7> is hydrogen. The insecticidal efficacy and preparation of the compounds and intermediates therefor are described and exemplified. |
