Entangled Pd complexes over Fe3O4@SiO2 as supported catalysts for hydrogenation and Suzuki reactions

We here report the synthesis, characterization and catalytic performance of new supported Pd(0) and Pd(II) catalysts. The catalysts were characterized by TEM, XRD, FT-IR, VSM and ICP. The catalysts were found to be active in both forms, Pd(0) and Pd(II), for hydrogenation and Suzuki cross-coupling reactions. In contrast to most supported catalysts, the newly developed catalysts were prepared using nearly the same synthetic strategy, and were easily recovered and recycled from the reaction mixture by applying an external magnet and reused in 5 cycles without significant loss in activity.