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A well-dispersed magnetically separable copper nanocatalyst via the immobilization of copper (II) complex on the surface of silica-coated magnetic nanoparticles functionalized with di(pyridin-2-yl)amine as ligand. After the fabrication of the Fe 3 O 4 @SiO 2 -di(pyridin-2-yl)amine-Cu, the structure of this nanomaterial was fully characterized by a number of spectroscopic techniques including FT-IR, SEM, TEM, EDS, XRD, TGA,VSM, AAS, and ICP-AES. This nanocomposite was found to be an efficient and versatile catalyst for A 3 -synthesis of propargylamines and C-S cross-coupling of thiophenols with aryl iodides. The presence of Fe 3 O 4 @SiO 2 -di(pyridin-2-yl)amine-Cu catalyst was very vital because the reactions was failed in the absence of this nanomaterial. After the reaction, the catalyst was easily separated by external magnetic effect and reused for several runs with consistent catalytic activity without any detectable leaching.

polycyclic aromatic compounds

Magnetic Nanoparticles Modified With di(Pyridin-2-yl)Amine Ligand Supported Copper Complex: A Novel and Efficient Magnetically Reusable Catalyst for A 3  Coupling and C-S Cross-Coupling Reactions