A Novel Assembly of Substituted Pyrroles by Acid-Catalyzed Sequential Three-Component Reaction of Amines, Alkynoates, and 1,2-Diaza-1,3-dienes
作者:Orazio A. Attanasi、Gianfranco Favi、Fabio Mantellini、Giada Moscatelli、Stefania Santeusanio
DOI:10.1002/adsc.201100094
日期:2011.6
A novel protocol for the assembly of polysubstituted pyrroles has been developed through the acid‐catalyzed, sequential three‐component reaction of primary aliphatic amines, alkynoates and 1,2‐diaza‐1,3‐dienes (DDs). This methodology proceeds with complete chemo‐/regioselectivity involving first formation of an enamino ester intermediate, in situ Michael addition with azo‐ene compounds and subsequent
通过伯脂肪族胺,炔酸和1,2-二氮杂-1,3-二烯(DDs)的酸催化顺序三组分反应,开发了一种多取代吡咯组装的新方案。该方法具有完全的化学/区域选择性,包括首先形成烯氨基酯中间体,与偶氮烯化合物在原位迈克尔加成,然后进行分子内闭环。