Carboxylate esters of the formula (I): R.sub.1 --COOR.sub.2 wherein R.sub.1 is a tricyclodecyl or tricycloundecyl group, and R.sub.2 is a group of the formula ##STR1## wherein R.sub.3 is hydrogen or a cyano group; ##STR2## wherein R.sub.3 is a hydrogen or a cyano group; ##STR3## which are useful as insecticides.
公式(I)的
羧酸酯:R.sub.1 -COOR.sub.2,其中R.sub.1是
三环十二基或
三环十一基基团,R.sub.2是公式##STR1##的基团,其中R.sub.3是氢或
氰基;##STR2##其中R.sub.3是氢或
氰基;##STR3##它们是有用的
杀虫剂。