The invention provides compounds of formula: ##STR1## wherein R.sup.1 represents hydrogen or halogen and R.sup.2 represents C.sub.1-8 alkyl or C.sub.1-8 haloalkyl, useful as insecticides and knockdown agents. The invention also provides compositions comprising them, methods of their use in controlling insects, and processes for their preparation.
本发明提供了一些式子如下的化合物:##STR1## 其中R.sup.1代表氢或卤素,R.sup.2代表C.sub.1-8烷基或C.sub.1-8卤代烷基,这些化合物可用作
杀虫剂和击倒剂。本发明还提供了包含它们的组合物,使用它们控制昆虫的方法,以及它们的制备方法。