Pesticidal compounds have the formula: ##STR1## wherein D represents hydrogen or a cyano or ethynyl group; B represents hydrogen or an alkyl or alkenyl group; A represents an alkyl group or a halogeno group or a CF.sub.3 group; n is 0 or an integer of 1-4; and RCOO is the residue of an acid RCOOH which is a 2,2-dimethyl-cyclopropane carboxylic acid carrying at the 3-position a dihalovinyl, an alkenyl or a carboalkoxyalkenyl group, provided that (1) when the group --CH.sub.2 CH.dbd.CHB is located at the 4-position on the ring with respect to the ester linkage, then D must be hydrogen and the group carried at the 3-position on the cyclopropane ring of the acid must be a dihalovinyl group and (2) when the group --CH.sub.2 CH.dbd.CHB is located at the 3-position on the ring and D is a CN group, then n must be 0.
杀虫化合物的
化学式为:##STR1## 其中,D代表氢或
氰基或
乙炔基;B代表氢或烷基或烯基;A代表烷基或卤素基或CF.sub.3基;n为0或1-4的整数;RCOO是酸RCOOH的残基,该酸是一种2,2-二
甲基环丙烷羧酸,在3位携带二卤
乙烯基、烯基或羧基烷氧基烯基,但需满足以下条件:(1)当--CH.sub.2 CH.dbd.
CHB基团位于环上与酯键相对的4位时,D必须为氢,并且酸的
环丙烷环上携带的基团必须是二卤
乙烯基;(2)当--CH.sub.2 CH.dbd.
CHB基团位于环上的3位且D为CN基团时,n必须为0。