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Research Article Open Access
Synthesis of substituted Coumarins from phenol and β-ketoester(Ethyl Acetoacetate) via Pechmann condensation using heterogeneous catalyst Phosphomolybdic Acid (PMA):Silica supported BF3:OEt2 under solvent free condition. This one required low reaction time, mild reaction condition, at room temperature and easy workup with excellent yield of the product.
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Author(s): Omprakash S Chavan S B Chavan S A Jadhav M G Shioorkar and M A Baseer
PMA: Silica supported BF3:OEt2 Catalyst, Coumarins, Pechmann condensation, Solvent free reaction., chemistry