An Efficient and Practical Procedure for the Synthesis of 4-Substituted Coumarins

Abstract

BiCl₃ is used as an efficient catalyst in the Pechmann condensation reaction of phenols with β-keto esters leading to the formation of coumarin derivatives in excellent yields under solvent-free conditions.

Key words

phenols - β-keto ester - Pechmann reaction - bismuth(III) chloride - coumarin

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