One-pot, three-component Fischer indolisation–<i>N</i>-alkylation for rapid synthesis of 1,2,3-trisubstituted indoles
作者:Christopher A. Hughes-Whiffing、Alexis Perry
DOI:10.1039/d0ob02185g
日期:——
A one-pot, three-component protocol for the synthesis of 1,2,3-trisubstituted indoles has been developed, based upon a Fischer indolisation–indole N-alkylation sequence. This procedure is very rapid (total reaction time under 30 minutes), operationally straightforward, generally high yielding and draws upon readily available building blocks (aryl hydrazines, ketones, alkyl halides) to generate densely
基于Fischer吲哚化-吲哚N-烷基化序列,已开发出一种用于一锅,三组分合成1,2,3-三取代的吲哚的方案。该过程非常快(总反应时间在30分钟以下),操作简单,通常收率很高,并利用容易获得的结构单元(芳基肼,酮,卤代烷)生成密集取代的吲哚产物。我们已经证明了该方法在23种带有各种有用功能的吲哚,苯并吲哚和四氢咔唑的合成中的实用性。