申请人:Hoechst Aktiengesellschaft
公开号:US04531969A1
公开(公告)日:1985-07-30
Optically active enantiomers of the formula I ##STR1## where R is a group of the formulae ##STR2## R.sub.1 and R.sub.2, among others, are halogen or CF.sub.3 and Z is a carboxyl, carboxylate, carboxylic acid ester, thioester, carbonamide, carboxylic acid anilide, carbohydrazide or thioamide group, are interesting herbicides the effect of which is considerably superior to that of the optically inactive racemates.
化学式为I的光学活性对映体,其中R是化学式中的一个基团,R.sub.1和R.sub.2等等是卤素或CF.sub.3,Z是一个羧基、羧酸盐、羧酸酯、硫酯、碳酰胺、羧酸苯胺、羧酸酰肼或硫代酰胺基团,是一种有趣的除草剂,其效果比光学不活性的混合物要好得多。