An efficient ZrCl4 catalyzed one-pot solvent free protocol for the synthesis of 4-substituted coumarins
作者:G.V.M. Sharma、J. Janardhan Reddy、P. Sree Lakshmi、P. Radha Krishna
DOI:10.1016/j.tetlet.2005.06.166
日期:2005.9
A versatile and efficient route to 4-substituted cournarins via a Pechmann reaction using ZrCl4 as the catalyst (10 mol %) is described. This method provides several advantages over alternative procedures such as mild, solvent-free conditions at ambient temperature, and direct isolation of the products in high yields. (c) 2005 Published by Elsevier Ltd.