作者:M. Nanasawan、S. Yamashita、M. Hirai、K. Miyatake、M. Watanabe
DOI:10.1080/00304940609355996
日期:2006.6
These benzidines with 3,3'-bis(sulfoalkoxy) groups have been synthesized by alkylation of commercial 3,3'-dihydroxy-4,4'-benzidine with propaneor butanesultones! However, there is no report on a synthetic method for the 2,2'-substituted or alkylsulfonated ones. We report here a route to 3,3'-bis(sulfomethy1)and 2,2'-bis (sulfoalkoxy)-4,4'-benzidine via the benzidine rearrangement.
侧链取代的联苯胺已被用作染料中间体和芳族聚酰亚胺单体的二胺组分?最近,具有磺酸盐基团的 4,4'-联苯胺衍生物作为燃料电池系统中聚酰亚胺电解质膜的关键单体引起了极大的兴趣。这些具有 3,3'-双(磺基烷氧基)基团的联苯胺是通过商业 3,3'-二羟基-4,4'-联苯胺与丙烷或丁烷磺内酯的烷基化合成的!然而,没有关于 2,2'-取代或烷基磺化的合成方法的报道。我们在此报告了通过联苯胺重排生成 3,3'-双 (sulfomethy1) 和 2,2'-双 (磺基烷氧基)-4,4'-联苯胺的路线。