Al2O3/MeSO3H (AMA) as a novel heterogeneous system for synthesis of coumarins under mild conditions
作者:H SHARGHI、M JOKAR
DOI:10.1016/s0385-5414(07)81208-1
日期:2007.12.1
Al2O3/MeSO3H (AMA) is found to be an efficient reagent for the Pechman condensation reaction of phenols and beta- ketoesters under solvent free conditions. The reaction protocol is simple, cost- effective, solvent free and gives good isolated yield with high purity and good regioselectivity.