申请人:Bayer Aktiengesellschaft
公开号:US04769484A1
公开(公告)日:1988-09-06
Herbicidally active phenoxybenzoic acid esters of the formula ##STR1## in which X represents hydrogen or halogen, A represents optionally branched C.sub.2 -C.sub.6 -alkanediyl, Q represents oxygen, sulphur, sulphinyl (SO) or sulphonyl (SO.sub.2), R.sup.1 represents hydrogen or methyl, R.sup.2 represents hydrogen or C.sub.1 -C.sub.4 -alkyl, and R.sup.3 and R.sup.4 are identical or different and represent hydrogen, halogen, cyano, nitro, C.sub.1 -C.sub.4 -alkyl, halogeno-C.sub.1 -C.sub.2 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogeno-C.sub.1 -C.sub.2 -alkoxy and C.sub.1 -C.sub.2 -alkoxycarbonyl.
该公式表示草甘膦活性的苯氧基苯甲酸酯,其中X代表氢或卤素,A代表可选择支链的C.sub.2 -C.sub.6 -烷二基,Q代表氧、硫、亚砜(SO)或磺酰基(SO.sub.2),R.sup.1代表氢或甲基,R.sup.2代表氢或C.sub.1 -C.sub.4 -烷基,R.sup.3和R.sup.4相同或不同,代表氢、卤素、氰基、硝基、C.sub.1 -C.sub.4 -烷基、卤代C.sub.1 -C.sub.2 -烷基、C.sub.1 -C.sub.4 -烷氧基、卤代C.sub.1 -C.sub.2 -烷氧基和C.sub.1 -C.sub.2 -烷氧羰基。