“…Functionalized magnetic nanoparticles (MNPs) have been employed in organic synthesis, showing excellent catalytic activities in oxidation [2], hydrogenation [3], C-C coupling [4], dihydroxylation of olefins [5], and amination [6] reactions. Currently, much attention is focused on the synthesis of magnetic core-shell structures by coating a SiO 2 shell around a preformed nanoparticle [7].…”