Immobilized Palladium-pyridine Complex on γ-Fe۲O۳ Magnetic Nanoparticles as a New Magnetically Recyclable Heterogeneous Catalyst for Heck, Suzuki and Copper-free Sonogashira Reactions

A new immobilized palladium-pyridine complex on γ-Fe۲O۳ magnetic nanoparticles was synthesized and characterized by SEM, TEM, TGA, ICP, XPS, XRD, FT-IR and CHN analysis. The catalytic activity of synthesized catalyst has been investigated in Heck, Suzuki and Sonogashira coupling reactions using a series of aryl halides. The catalyst was easily isolated from the reaction mixture by an external magnetic field and reused several times with no significant loss of catalytic activity.

کلیدواژه ها:

Palladium ، Iron oxide ، Coupling reactions ، Heterogeneous catalyst