申请人:Mitsui Toatsu Chemicals, Inc.
公开号:US04542243A1
公开(公告)日:1985-09-17
The present invention relates to a process for producing 3-phenoxybenzyl 2-(4-alkoxyphenyl)-2-methylpropyl ethers having excellent insecticidal and acaricidal activities which are represented by formula (IV): ##STR1## wherein R is a lower alkyl group and X.sub.1 and X.sub.2 are each a hydrogen or fluorine atom, which comprises reacting a 3-halogeno-4-alkoxyneophyl halide represented by the formula (I): ##STR2## wherein Y.sub.1 and Y.sub.2 are each a hydrogen, chlorine or bromine atom, at least one of them being a chlorine or bromine atom, R has the same meaning as above and X is a halogen atom, with a 3-phenoxybenzyl alcohol represented by the formula (II): ##STR3## wherein X.sub.1 and X.sub.2 have the same meaning as above, in the presence of a base to obtain a 3-phenoxybenzyl 2-(4-alkoxy-3-halogenophenyl)-2-methylpropyl ether represented by the formula (III): ##STR4## wherein Y.sub.1, Y.sub.2, R, X.sub.1 and X.sub.2 have the same meaning as above, and then subjecting the product to a hydrodehalogenation reaction, and relates to a process for producing a 3-halogeno-4-alkoxyneophyl halide represented by formula (I), which comprises reacting a 2-halogeno-1-alkoxybenzene represented by formula (V): ##STR5## wherein Y.sub.1 and Y.sub.2 are each a hydrogen, chlorine or bromine atom, at least one of them being a chlorine or bromine atom, and R represents a lower alkyl group, with a methallyl halide in the presence of an acid catalyst at -20.degree. to 50.degree. C.
本发明涉及一种生产具有优异杀虫和杀螨活性的3-苯氧基苄基2-(4-烷氧基苯基)-2-甲基丙基醚的方法,其化学式为(IV):##STR1## 其中,R为低碳基,X1和X2分别为氢或氟原子,其包括通过反应式(I)所表示的3-卤代-4-烷氧基新环烷卤化物:##STR2## 其中,Y1和Y2分别为氢、氯或溴原子,其中至少一个为氯或溴原子,R具有上述相同的含义,X为卤素原子,与式(II)所表示的3-苯氧基苄醇:##STR3## 其中,X1和X2具有上述相同的含义,在碱的存在下,获得式(III)所表示的3-苯氧基苄基2-(4-烷氧基-3-卤苯基)-2-甲基丙基醚:##STR4## 其中,Y1、Y2、R、X1和X2具有上述相同的含义,然后将产物进行脱卤反应,以及一种生产式(I)所表示的3-卤代-4-烷氧基新环烷卤化物的方法,其包括通过反应式(V)所表示的2-卤代-1-烷氧基苯与甲烯丙基卤化物在-20℃至50℃的酸催化剂存在下反应,其中,Y1和Y2分别为氢、氯或溴原子,其中至少一个为氯或溴原子,R表示低碳基。