申请人:BASF Aktiengesellschaft
公开号:US05147645A1
公开(公告)日:1992-09-15
Benzyl esters of the formula I ##STR1## where R.sup.1 is methyl, ethyl, halogen, methoxy or ethoxy, R.sup.2 is alkyl, alkenyl, cycloalkyl, cycloalkenyl, bicycloalkyl, bicycloalkenyl, C.sub.1 -C.sub.5 -alkyl-substituted cycloalkyl, C.sub.1 -C.sub.5 -substituted cycloalkenyl, C.sub.1 -C.sub.5 -alkyl-substituted bicycloalkyl or C.sub.1 -C.sub.5 -alkyl-substituted bicycloalkenyl, R.sup.3 is hydrogen, cyano, C.sub.2 -C.sub.4 -alkynyl, C.sub.2 -C.sub.4 -alkenyl or C.sub.1 -C.sub.4 -alkyl, A is the carboxylate radical of an acid component typical for pyrethroids and X is hydrogen or halogen, with the proviso that R.sup.2 is not CH.sub.2 --CH.dbd.CH--B when B is hydrogen, alkyl or alkenyl and at the same time R.sup.1 is methyl or halogen, and furthermore with the proviso that R.sup.2 is not methyl when R.sup.1 is methyl, their manufacture, their use for combating pests, and precursors for manufacturing the benzyl esters.
苯甲酸苄酯的化学式为I ##STR1## 其中R.sup.1为甲基、乙基、卤素、甲氧基或乙氧基,R.sup.2为烷基、烯基、环烷基、环烯基、双环烷基、双环烯基、C.sub.1 -C.sub.5 -烷基取代的环烷基、C.sub.1 -C.sub.5 -取代的环烯基、C.sub.1 -C.sub.5 -烷基取代的双环烷基或C.sub.1 -C.sub.5 -烷基取代的双环烯基,R.sup.3为氢、氰基、C.sub.2 -C.sub.4 -炔基、C.sub.2 -C.sub.4 -烯基或C.sub.1 -C.sub.4 -烷基,A为典型拟除虫剂酸组分的羧酸基团,X为氢或卤素,但R.sup.2不是CH.sub.2 --CH.dbd.CH--B,其中B为氢、烷基或烯基,同时R.sup.1为甲基或卤素;并且R.sup.2不是甲基当R.sup.1为甲基时,它们的制备,用于对抗害虫的用途,以及用于制备苄酯的前体。