One-Pot Condensation Approach for the Synthesis of Some 1,8-Dioxo-octahydroxanthenes and 14-Aryl-14H-dibenzo[a,j]Xanthenes Using Lactic Acid as an Efficient and Eco-Friendly Catalyst

摘要

The synthesis of some biologically important xanthenes, by efficient and convenient approach for one-pot condensation reaction of aldehydes and dimedone or β-naphthol in the presence of lactic acid as an efficient, inexpensive and environmental friendliness catalyst under solvent-free conditions, is presented. The merits of this reaction are higher product yields in shorter reaction time and environmentally benign reaction conditions.