2011•Chemical ReagentsRequires access
Microwave irradiation induced synthesis of ethyl coumarin-3-carboxylate under solvent-free condition
Chengping Miao
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Abstract
Ethyl coumarin-3-carboxylate was synthesized from salicylaldehyde and diethyl malonate by the Knoevenagel condensation reaction using diethylamine as the catalyst under microwave irradiation and solvent-free condition.The factors which could affect the reaction were investigated and optimized.Under the optimum conditions,the yield of ethyl coumarin-3-car-boxylate was 88.0%.In addition,the product structure was characterized by the melting point measurement,IR spectrometry,and 1HNMR spectroscopy.