Dipyridine copper chloride catalyzed coumarin synthesis via Pechmann condensation under conventional heating and microwave irradiation

Abstract

Dipyridine copper chloride is used as an efficient catalyst in the Pechmann condensation reaction of phenols with ethyl acetoacetate, in solvent-free media leading to the formation of coumarin derivatives using both conventional heating and microwave irradiation in excellent yields with good purity.