Efficient Catalysts for the Rapid Synthesis of Benzylidene Bis(4-Hydroxycoumarin) Derivatives in Aqueous Media

Zahed Karimi-Jaberi, Mohammad Reza Nazarifar Nazarifar

Abstract


Trichloroacetic acid, CCl3COOH, efficiently catalyzed the reaction of an aromatic aldehydes and 4-hydroxycoumarin in aqueous media under mild conditions to afford the corresponding α,α¢-benzylidene bis(4-hydroxycoumarin) derivatives in high yields. Ceric sulfate, (Ce(SO4)2.4H2O), has also been used as another solid catalyst for this reaction

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DOI: http://dx.doi.org/10.17628/ecb.2014.3.512-514

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