申请人:Rhone-Poulenc Agrochimie
公开号:US05123953A1
公开(公告)日:1992-06-23
Compounds of formula: ##STR1## in which: n=0, 1, 2 f=0, 1 Ar is an optionally substituted phenyl or pyridyl group U a chlorine or bromine atom V a bromine or chlorine or iodine atom B is C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.10 cycloalkyl, which are optionally substituted by 1 to 6 halogen atoms, phenyl or pyridyl or oxidized pyridyl, which are optionally substituted. Use of these compounds as herbicides which are selective but especially antigraminaceous at preemergence.
化合物的式子:##STR1## 其中:n=0, 1, 2 f=0, 1 Ar是一个可选取代的苯基或吡啶基团 U是氯或溴原子 V是溴、氯或碘原子 B是C.sub.1-C.sub.10烷基、C.sub.3-C.sub.10环烷基,可以选择性地被1至6个卤素原子、苯基或吡啶基或氧化吡啶基取代。这些化合物可作为除草剂使用,具有选择性,特别是在萌芽前期对禾本科植物有抑制作用。