Fe3O4 nanoparticles stabilized on mmt: An efficient magnetically recoverable heterogeneous Catalyst for the synthesis of Dihydropyrimidinones

Subrat Jyoti Borah and Diganta

Abstract

Fe3O4 magnetic nanoparticles supported on modified montmorillonite clay, were utilized for catalytic performance for the synthesis of different 3,4-dihydropyrimidin-2(1H)-ones under green reaction condition. The modification of Montmorillonite K10 clay was carried out with HCl under controlled conditions for generating a high surface area porous matrix which acts as support for the in situ generation of Fe3O4- nanoparticles. The synthesized nanocomposite material was characterized by powder XRD, TEM, N2 adsorption-desorption and XPS analysis. The catalysts can be recycled and reused several times without significant loss of their catalytic activity.