Regio- and Stereoselective Synthesis of 2-Amino-dienes via Decarboxylative Amination of 4-(Ethoxycarbonyl)-2,3-allenols by TsNCO
作者:Lijun Wu、Hui Huang、Yun Liang、Pi Cheng
DOI:10.1021/jo502098b
日期:2014.11.21
A metal-free decarboxylative amination of 4-(ethoxycarbonyl)-2,3-allenols by TsNCO via base-induced aza-Michael addition/elimination has been developed. A variety of substituted N-tosyl 1,3-dien-2-yl amines were obtained in good yields and excellent regio- and stereoselectivity. Moreover, this transformation could be applied in preparation of 2-amino-trienes.