Sulfamic acid pyridinium chloride-functionalized Fe3O4 nanoparticles as a novel organic-inorganic hybrid heterogeneous catalyst was manufactured and characterized by FT-IR, XRD, TGA, SEM, TEM and VSM techniques. The catalytic activity of the nanomagnetic catalyst was investigated in the multicomponent reactions of arylaldehydes, 7-amino-4-methylcoumarin and dialkyl acetylenedicarboxylate that afford the novel N-coumarin-2-furanones. This green nanocatalytic procedure has good reversibility and provides clean production in a short reaction time.
