Abstract

Hamide Babaei* and Naser Montazeri

DOI : http://dx.doi.org/10.13005/ojc/300223

An easy method for the synthesis of biscoumarins through a one-pot reaction of 4-hydroxycoumarin and aryl aldehydes under very mild reaction conditions using nano TiO₂ as catalyst in aqueous medium is described. The products were obtained in short reaction times with excellent yields under reflux. This method is of great value because of its environmentally benign character, high yield processing, and easy handling. We believe this applicability of nano-TiO₂ with mentioned advantages makes our method superior over all previous reported methods to the synthesis of biscoumarins.

Biscoumarins; aqueous medium; 4-hydroxycoumarin; nano-TiO2; aryl aldehydes

[ View HTML Full Text]