Compounds of formula I
in which Ar is phenyl, pyridyl or pyrimidinyl, each of which is optionally substituted, and X and Z, which may be the same or different, are as defined in the description, have insecticidal and acaricidal activity. Many compounds are novel, as are certain intermediates.
式I的化合物中,Ar是苯基、
吡啶基或
嘧啶基,每种基团都可以选择性地被取代,而X和Z可以相同也可以不同,其定义在说明书中,具有杀虫和杀螨活性。许多化合物是新颖的,某些中间体也是新颖的。