Silica supported boron trifluoride nanoparticles(BF3-SiO2 NPs): An efficient and reusable catalyst for one-pot synthesis of benzo[a]xanthene-11-onederivatives

Author

Department of Chemistry, Yazd Branch, Islamic Azad University, P.O.Box 89195-155, Yazd, Iran

Abstract

Silica supported boron trifluoride nanoparticles(BF3-SiO2 NPs) as a mild solid acid catalyst has been used for an improved and rapid one-pot synthesis of benzo[a]xanthene-11-onederivatives using EtOH as a reaction medium. This Michael addition of various aromatic aldehydes with 2-naphtholand dimedone is very simple and the products are isolated with a .......

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