申请人:Nihon Tokushu Noyaku Seizo K.K.
公开号:US04441913A1
公开(公告)日:1984-04-10
Novel substituted phenoxypropionates of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently are a hydrogen atom or a C.sub.1 to C.sub.6 alkyl group, X is a hydrogen or halogen atom, nitro, C.sub.1 to C.sub.6 alkyl or C.sub.1 to C.sub.6 alkoxy, a and n each independently are 1 or 2, and Ar is a group of the formula ##STR2## wherein Y is a trifluoromethyl group, a halogen atom or a nitro, cyano or C.sub.1 to C.sub.6 alkyl group, and b is 1, 2 or 3, and their use as herbicides. Novel intermediates of the formulae ##STR3## in which formulae R.sup.1, R.sup.2, X, a and n have the meanings given above and Z.sup.1 represents halogen.
本发明提供了一种替代的苯氧基丙酸酯化合物,其化学式为##STR1## 其中R1和R2各自独立地是氢原子或C1至C6烷基,X是氢或卤素原子,硝基,C1至C6烷基或C1至C6烷氧基,a和n各自独立地为1或2,Ar是一个化学式为##STR2## 的基团,其中Y是三氟甲基基团,卤素原子或硝基,氰基或C1至C6烷基,b为1、2或3,并且它们可用作除草剂。本发明还提供了化合物的新中间体,其化学式为##STR3## 在该式中,R1、R2、X、a和n具有上述所给出的含义,Z1代表卤素。