Magnetic covalently immobilized nickel complex: A new and efficient method for the Suzuki cross‐coupling reaction

• Published in: Applied organometallic chemistry 2021-04, Vol.35 (4), p.n/a
• Main Authors: Keyhaniyan, Mahdi, Khojastehnezhad, Amir, Eshghi, Hossein, Shiri, Ali
• Format: Article
• Language: English
• Subjects: Catalysts; Catalytic activity; Chemical synthesis; Chemistry; Core-shell structure; Creatine; Cross coupling; Iron oxides; Magnetic cores; magnetic nanoparticles; Nanoparticles; Nickel; Nitrogen atoms; organometallic chemistry; Silicon dioxide; Suzuki reaction
• ISSN: 0268-2605; 1099-0739
• DOI: 10.1002/aoc.6158

In this study, an efficient procedure was reported to prepare Fe3O4@SiO2 magnetic nanoparticles (MNPs) with immobilized nickel NPs. In order to increase the activity of this catalyst, creatine as a ligand with high content of nitrogen atoms was linked onto the magnetic core–shell structure. Then, Ni(II) ions were coordinated on the surface of the silica‐coated MNPs and reduced to Ni(0) NPs to obtain the final catalyst. The catalytic activity of the prepared catalyst was studied for the synthesis of biaryl derivatives via the Suzuki–Miyaura cross‐coupling reaction in high yields. The catalyst could also be recovered and reused with no loss of activity over five successful runs. An efficient procedure was reported to prepare Fe3O4@SiO2 magnetic nanoparticles (MNPs) with immobilized nickel NPs. The catalytic activity of the prepared catalyst was studied for the synthesis of biaryl derivatives via the Suzuki–Miyaura cross‐coupling reaction in high yields. The catalyst could also be recovered and reused with no loss of catalytic activity over five successful runs.