申请人:Imperial Chemical Industries PLC
公开号:US04895974A1
公开(公告)日:1990-01-23
Compounds of formula: ##STR1## and stereoisomers thereof, in which A is oxygen or sulphur; Z and Y are independently hydrogen, halogen, optionally substituted alkyl, nitro or cyano; and R, which contains at least one halogen atom, is the group ##STR2## in which R.sup.1 and R.sup.2 are independently hydrogen or alkyl; and R.sup.3, R.sup.4 and R.sup.5 are independently hydrogen, halogen, alkyl, haloalkyl or alkoxy.
化学式为##STR1##及其立体异构体的化合物,其中A为氧或硫;Z和Y独立地为氢、卤素、可选取代的烷基、硝基或氰基;R含有至少一个卤素原子,是群##STR2##其中R.sup.1和R.sup.2独立地为氢或烷基;而R.sup.3、R.sup.4和R.sup.5独立地为氢、卤素、烷基、卤代烷基或烷氧基。