Abstract

A new method for the synthesis of formamides has been developed by the N-formylation of amines with formic acid in the presence of nano cerium oxide as an efficient and recyclable catalyst under ultrasound irradiation. The reaction system is remarkably simple and environmentally benign.

Keywords: N-Formylation, amine, nano cerium oxide, reusable catalyst, formic acid, ultrasound irradiation.