4-Aryl-2-haloimidazole-5-carboxylic esters of the general formula Ia and Ib ##STR1## where R.sup.1 is C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -alkenyl or C.sub.3 -C.sub.6 -alkynyl, R.sub.2 is C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -alkenyl or C.sub.3 -C.sub.6 -alkynyl, Hal is chlorine or bromine, n is 0 to 3, x is C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -alkylsulfinyl, C.sub.1 -C.sub.4 -alkylsulfonyl, C.sub.1 -C.sub.4 -haloalkylthio, cyano, nitro, carbo-C.sub.1 -C.sub.4 -alkoxy, N,N-di-C.sub.1 -C.sub.4 -alkylcarbamoyl and/or halogen, processes for their manufacture, and their use in herbicidal agents as safeners in combination with at least one herbicidal active ingredient from the group consisting of a) 2-(4-heteroaryloxy)- or 2-(4-aryloxy)-phenoxyacetic acid or -propionic acid derivatives and b) cyclohexenone derivatives.
通式Ia和Ib的4-芳基-2-卤代咪
唑-5-羧酸酯,其中R1是C1-C6烷基,C3-C6烯基或C3-C6炔基,R2是C1-C6烷基,C3-C6烯基或C3-C6炔基,Hal是
氯或
溴,n为0至3,x为C1-C4烷基,C1-C4卤代烷基,C1-C4烷氧基,C1-C4卤代烷氧基,C1-C4烷基
硫基,C1-C4烷基亚砜基,C1-C4烷基磺酰基,C1-C4卤代烷基
硫基,
氰基,硝基,碳基-C1-C4烷氧基,N,N-二-C1-C4烷基
氨基甲酰基和/或卤素,其制造方法,以及它们在
除草剂中作为安全剂与来自以下组的至少一种除草活性成分的组合使用:a)2-(4-杂环芳基氧基)-或2-(4-芳基氧基)-
苯氧乙酸或-
丙酸衍
生物和b)
环己酮衍
生物。