Synthesis of 4-aminiquinaldine grafted on silica-coated nano-Fe3O4 particles (MNPs-AQ) and their performance as a retrievable heterogeneous basic catalyst are disclosed. The catalytic performance of this novel material was studied for the green synthesis of substituted 1,4-dihydropyridine and polyhydroquinoline derivatives via one-pot multicomponent reactions. Eco-friendly method, high yield and purity of the desired products, and short reaction time along with the ease of the workup procedure outline the advantages of these new methodologies over the earlier ones. The surface and magnetic properties of the core/shell hybrid nanoparticles were characterized via TEM, SEM, XRD, EDS, and FT-IR analysis techniques. This nanocatalyst is recyclable without any deterioration in its catalytic activity.
