A Novel One‐pot Protocol for Silica Sodium Carbonate‐Catalyzed Synthesis of Pyrano[2,3‐h]coumarins
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DOI: 10.1002/jhet.3014
Abstract: A novel environmentally benign condensation of 5,7-dihydroxy-4-methylcoumarin, aryl aldehydes, and ethyl cyanoacetate in the presence of silica sodium carbonate (SSC) has been developed for the synthesis of new pyrano[2,3-h]coumarins. read more here.
Keywords: silica sodium; sodium carbonate; pyrano coumarins;