Phosphine-functionalized magnetic nanoparticles (PFMN) as a magnetic recyclable phosphorus ligand: Preparation of its palladium(II) complex for Heck reaction of chloroarenes

• Synthesis of a new magnetic recyclable phosphorous ligand.
• Preparation & characterization of a new heterogeneous Pd catalyst.
• Highly efficient Pd catalyst for Heck reaction of chloroarenes.

In this study, magnetic nanoparticles (MNs) were functionalized using chlorodiphenylphosphine (ClPPh2) and phosphine-functionalized magnetic nanoparticles (PFMN) as a recyclable phosphorus ligand was obtained. Also, palladium(II) complex of PFMN ligand (Pd-PFMN) was prepared and its catalytic activity was evaluated in the Heck reaction of chloroarenes. The results revealed that, this new catalyst showed high catalytic activity in the Heck reaction of chloroarenes and this can be attributed to the high reactivity of Pd complex involving phosphorus ligands and dispersible ability of MNs in solution as a high surface area support.

Phosphine fictionalization of magnetic nanoparticles was achieved via reaction of chlorodiphenylphosphine (ClPPh2) with silica modified magnetic nanoparticles in order to prepare a magnetic recyclable phosphorus ligand. Palladium(II) complex of this reusable ligand was found to be an efficient heterogeneous catalyst for the Heck reaction of chloroarenes.Figure optionsDownload as PowerPoint slide