NHC triggered cascade metal-free synthesis of 2,3-diarylated indoles under solvent-free conditions
作者:Changsheng Yao、Donglin Wang、Jun Lu、Bingbin Qin、Honghong Zhang、Tuanjie Li、Chenxia Yu
DOI:10.1016/j.tetlet.2011.09.041
日期:2011.11
A new cascade strategy to the synthesis of 2,3-diarylated indoles via the metal-free reaction of aryl aldehyde and aryl amine triggered by N-heterocyclic carbene (NHC) under solvent-free conditions, has been disclosed. The protocol has the advantages of easy work-up, high yields, wide application scope, and an environmentally benign procedure compared with the reported methods.
公开了在无溶剂条件下通过N-杂环卡宾(NHC)引发的芳醛和芳胺的无金属反应合成2,3-二芳基吲哚的新级联策略。与已报道的方法相比,该协议具有后处理容易,产率高,适用范围广和对环境无害的优点。