Palladium-Catalyzed Synthesis of Monodisperse, Controlled-Length, and Functionalized Oligoanilines
作者:Joseph P. Sadighi、Robert A. Singer、Stephen L. Buchwald
DOI:10.1021/ja980052c
日期:1998.5.1
The palladium-catalyzed amination of aryl halides, in conjunction with an orthogonal protective group scheme, forms the basis of two routes to oligoaniline precursors. One method consists of a bidirectional chain growth from a symmetric core piece, whereas the other involves a divergent−convergent synthesis of nonsymmetric fragments, followed by coupling to a symmetric core fragment. The oligoaniline
芳基卤化物的钯催化胺化与正交保护基方案相结合,构成了制备低聚苯胺前体的两条路线的基础。一种方法由对称核心片段的双向链增长组成,而另一种方法涉及非对称片段的发散-收敛合成,然后耦合到对称核心片段。低聚苯胺前体可溶于多种常见有机溶剂,并且很容易转化为脱保护的低聚苯胺。该方法允许制备偶数或奇数链长并掺入多种官能团。描述了通过癸苯胺合成苯基封端的庚苯胺、四种末端官能化的辛苯胺衍生物以及苯基封端的 16-mer 和 24-mer。