HERBICIDE COMPOSITIONS CONTAINING 2-SQUARE BRACKET 4-BRACKET-2-COMMA ABOVE-CHLORO-4-COMMA ABOVE-BROMO-PFENOXY-BRACKET CLOSED-PHENOXY-SQUARE BRACKET CLOSED-PROPIONIC ACID DERIVATIVES AS ACTIVE AGENTS,AND PROCESS FOR PRODUCING THE ACTIVE AGENTS

摘要

Compounds of the formula IMAGE in which R represents hydroxyl, (C1-C10)alkoxy, (C1-C6)alkylthio, (C2-C4)alkenyloxy, cyclohexyloxy, cyclopentyloxy, phenoxy or phenylthio both optionally substituted once or twice with halogen, benzyloxy, benzylthio or -O-cat in which "cat" stands for the cation of an inorganic or organic base, have a very good effect on wild oat, barnyard grass, bristle grass and rayegrass in a much lower concentration than known analogous compounds.