| abstract |
A compound of formula In in which formula: n Ar represents a phenyl or naphthyl group optionally substituted by one or more halogen, alkoxy, haloalkoxy, methylenedioxy, C 1 -C 6 alkyl or haloalkyl groups;n R 1 represents the group -CH(CF 3 )CH 3 or C(CF 3 )=CH 2 ; R 2 represents the residue of an alcohol R 2 CHDOH in which D is hydrogen or cyano and of which the [IR, cis]2,2-dimethyl-3-(2,2-dibromovinyl)cyclopropane carboxylic ester is significantly insecticidal. |