Described are o-halobenzoic acid derivatives of the formula I
wherein ω is
wherein R4 is lower alkyl, X is oxygen or sulfur, and n is integer of 3 or 4; R1 is hydrogen or halogen; R2 is halogen; R3 is hydrogen or C1-C8-alkyl which may have lower alkoxy; processes for the production of said compounds, herbicidal compositions containing said compounds as effective components and a method for killing weeds using said compounds.
所述的是式 I 的邻卤
苯甲酸衍
生物
其中 ω 是
其中R4为低级烷基,X为氧或
硫,n为3或4的整数;R1为氢或卤素;R2为卤素;R3为氢或可能具有低级烷氧基的C1-C8-烷基;生产所述化合物的工艺,含有所述化合物作为有效成分的除草组合物,以及使用所述化合物杀死杂草的方法。