Sol-gel prepared of LaMnO3 perovskite: characterisation and catalytic activity in 2-phenylbenzo[d]imidazo[2,1-b]thiazole synthesis

Abstract

In this work, LaMnO3 was prepared by the sol-gel method followed by thermal treatment. The catalytic activity of LaMnO3 in the synthesis of 2-henylbenzo[d]imidazo[2,1-b]thiazole (2-PIT) from 2-aminobenzothiazole and acetophenone was strongly influenced by the calcination temperature. The highest efficiency of samples synthesized at 800◦C was approved due to Lewis acid and oxygen vacancy sites properties which were confirmed through NH3-TPD and H2-TPR. Furthermore, the stability and reusability of the sample demonstrated the potential of LaMnO3 heterogeneous catalysts in organic synthesis applications.

Keywords

• lamno3
• acetophenone
• 2-aminobenzothiazole
• organic synthesis