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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...
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