Preparation of a Novel Biopolymer Cellulose-Based Nanocomposite by Coating of Gamma-Fe2O3/Cu Nanoparticles and Catalytic Application in Chemical Reactions

Abstract

Hantzsch 1,4-dihyropyridine synthesis is one of the multicomponent reactions that is accomplished with different catalyst and under different conditions. In this work, this one-pot three-component and four-component reactions for the synthesis of 1,4dihyropyridine and polyhydroquinoline derivatives are described in the presence of biopolymer-based gamma-Fe 2 O 3 /Cu/cellulose as a nanocatalyst. This magnetic catalyst was very effective for this reaction, and it was carried out by simple work-up procedure under green and environmentally friendly conditions in ethanol at room temperature.