申请人:Nippon Chemicals Co., Ltd.
公开号:US04670586A1
公开(公告)日:1987-06-02
A method for the production of an .alpha.-aryl-alkanoic acid represented by the general formula II: ##STR1## wherein R.sup.3 stands for a hydrogen atom or an alkyl group and Ar for an aromatic residue, characterized by subjecting an .alpha.-haloalkyl-aryl ketal represented by the general formula I: ##STR2## wherein Ar has the same meaning as defined above, R.sup.1 and R.sup.2 independently stand for an alkyl group and embrace the case wherein they jointly form a cyclic acetal, R.sup.3 has the same meaning as defined above, and X stands for a halogen atom to a rearrangement reaction in the presence of at least one zinc compound selected from the group consisting of oxide, hydroxide, sulfide, carbonate, and basic carbonate of zinc and subsequently hydrolyzing the product of said rearrangement reaction.
一种制备α-芳基-烷基酸的方法,其化学式为II:##STR1## 其中,R^3代表氢原子或烷基,Ar代表芳香基团,其特征在于将α-卤代烷基-芳基醇基醚化合物(化学式I)##STR2## 在至少选择一种锌化合物的存在下,进行重排反应,所述锌化合物选择自氧化物、氢氧化物、硫化物、碳酸盐和碱性碳酸盐的组成群,并随后水解所述重排反应的产物。