Piperidine-4-carboxylic acid (PPCA) functionalized Fe3O4 nanoparticles (Fe3O4-PPCA) were prepared by
the one pot co-precipitation of iron oxide in the presence of PPCA. Grafting of chlorosulfonic acid on
the synthesized Fe3O4-PPCA nanoparticles afforded sulfamic acid-functionalized magnetic nanoparticles
(Fe3O4-SA-PPCA). The catalytic activity of Fe3O4-SA-PPCA as a novel catalyst was probed through onepot
synthesis of 2,3-dihydroquinazolin-4(1H)-ones and polyhydroquinolines derivatives. The
heterogeneous catalyst could be recovered easily and reused many times without significant loss of its
catalytic activity.
