Citric Acid Catalyzed Efficient and Convenient Synthesis of Coumarin Derivatives
Keywords:
Coumarins, Phenols, ?-Ketoesters, Pechmann Reaction, Citric acidAbstract
A coumarin derivatives has been synthesized via Pechmann condensation Substituted phenol with a β-ketoester using Citric acid as a green and efficient catalyst. The optimal conditions are: molar ration of reagents (1:1), Citric acid (15mol %) at 130°C for hrs in solvent-free conditions. Advantages of this Catalyst short reaction time, eco-friendly, good to excellent yield, non toxic and easy to handle.
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