One-pot synthesis of 2,4-disubstituted quinolines via silver-catalyzed three-component cascade annulation of amines, alkyne esters and terminal alkynes
作者:Yunlan Li、Qiurui Zhang、Xuefeng Xu、Xu Zhang、Yurong Yang、Wei Yi
DOI:10.1016/j.tetlet.2019.03.003
日期:2019.4
Described herein is a new and general method for one-pot synthesis of 2,4-disubstituted quinolines via silver-catalyzed [3 + 1 + 2] annulation of simple amines, alkyne esters and terminal alkynes. The versatile transformation might initiate with the facile formation of the enamine species with the feature of good to excellent yields, exclusive regioselectivity, and excellent substrate/functional group
本文描述了一种新的通用方法,该方法通过简单的胺,炔烃酯和末端炔烃的银催化的[3 +1 + 2]环合反应一锅合成2,4-二取代的喹啉。通用的转化可能始于烯胺种类的容易形成,其特征在于具有良好至优异的产率,独特的区域选择性以及优异的底物/官能团耐受性。