Palladium-Catalyzed Regioselective Oxidative Coupling of Indoles and One-Pot Synthesis of Acetoxylated Biindolyls
作者:Zunjun Liang、Jinlong Zhao、Yuhong Zhang
DOI:10.1021/jo902265s
日期:2010.1.1
developed to achieve Pd-catalyzed homocoupling of indoles with excellent regioselectivity in the presence of Cu(OAc)2·H2O in DMSO at room temperature in high efficiency. This method provides a simple route to 2,3′-biindolyls from the electron-rich to moderately electron-poor indoles. The reaction tolerates the bromide substituent on indoles. In addition, a one-pot approach to C3-position acetoxylated biindolyls
在温和的条件下,在室温下在DMSO中存在Cu(OAc)2 ·H 2 O的条件下,开发了温和的条件以实现Pd催化的吲哚具有出色的区域选择性的均偶联。该方法提供了从富电子到中等贫电子的吲哚到2,3'-二吲哚的简单途径。该反应容许吲哚上的溴化物取代基。另外,通过在氧气气氛下使用AgOAc作为氧化剂,通过钯催化,实现了C3-位乙酰氧基化联吲哚基的一锅法。