A facile synthesis of isoindoline and Δ1-pyrrolines from chalcone and glycine by a cascade of process involving addition, in situ decarboxylation, and cyclization
作者:Elangovan Elamparuthi、Subramaniayan Sarathkumar、Swaminathan Girija、Veerappan Anbazhagan
DOI:10.1016/j.tetlet.2014.05.119
日期:2014.7
In this Letter, we report a rapid one-step entry into isoindoline and Delta(1)-pyrrolines from chalcone. The key step in the synthesis is the addition of glycine to chalcone. In acidic medium the reaction presumably goes through aza-Michael addition, whereas in basic medium the reaction proceeds through condensation followed by cyclization. (C) 2014 Elsevier Ltd. All rights reserved.