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KMID : 1059520110550030486
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Journal of the Korean Chemical Society
2011 Volume.55 No. 3 p.486 ~ p.489
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Microwave-induced one-pot Synthesis of Coumarins Using Potassium Dihydrogen Phosphate as a Catalyst Under Solvent-free Condition
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Niralwad, Kirti S.
Shingate, Bapurao B.
Shingare, Murlidhar S.
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Abstract
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Potassium dihydrogen phosphate was found to be an efficient catalyst for the Pechmann condensation of phenols with ethyl acetoacetate, leading to the formation of coumarins under microwave-irradiation and solvent-free condition. This procedure offers several advantages, including the low loading of catalysts, high yields, clean reactions, short reaction time for the synthesis of coumarins.
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KEYWORD
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Pechmann condensation, Coumarins, Potassium dihydrogen phosphate, Solvent-free, Microwave
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