Abstract
A facile, efficient and environment-friendly protocol for the synthesis of 14-aryl- or alkyl-14 H-dibenzo[ a, j]xanthenes has been developed by one-pot condensation of 2-naphthol with aliphatic and aromatic aldehydes in the presence of P 2O 5 or InCl 3 as catalysts under solvent-free conditions. The present approach offers the advantages of clean reaction, simple methodology, short reaction time, high yield, easy purification, and economic availability of the catalyst.
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