Abstract

LIU, Di et al. Solvent-free Synthesis of 5H-dibenzo[b,i]xanthene-tetraones and Aryl-14H-dibenzo[a,j]xanthenes Using Ferric Chloride Hexahydrate as Catalyst. J. Mex. Chem. Soc [online]. 2013, vol.57, n.4, pp.345-348. ISSN 1870-249X.

Abstract A simple and convenient procedure for the synthesis of 5Hdibenzo[b,i]xanthene-tetraones and aryl-14H-dibenzo[a,j]xanthenes is described through the condensation of aldehydes with 2-naphthol or 2-hydroxy-1, 4-naphthoquinone under solvent-free conditions in the presence of ferric chloride hexahydrate. This method has the advantages of high yields, cleaner reaction, simple work-up and cost efficiency.

Keywords : xanthenes; aldehydes; 2-hydroxy-1, 4-naphthoquinone; 2naphthol; solvent-free; ferric chloride hexahydrate.

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