Journal of Physics and Chemistry of Solids (2020)
Update date:2022-08-11
Topics:
Rangraz, Yalda
Nemati, Firouzeh
Elhampour, Ali
In the present work, a novel heterogeneous catalytic system involving palladium(II) complex as moisture- and air-stable organoselenium ligand supported on Fe3O4 nanoparticles modified by SiO2/azidopropyltriemethoxy silane was designed, synthesized and characterized using various physicochemical methods inclusive VSM, EDX, FE-SEM, TG, XRD, and FT-IR spectroscopy. The catalytic activity of the synthesized magnetic nanocatalyst which named Fe3O4@SiO2-T-Se/Pd(II) was evaluated in Suzuki-Miyaura coupling reactions for the preparation of corresponding biaryls using diverse aryl halides and arylboronic acids. The mild reaction conditions, variety of substrate scope, good yield, low reaction time, high stability, utilization of organoselenium compound as an air and moisture insensitive ligand and its immobilization on solid support, and more importantly effortless recovery and recyclability of the catalyst up to seven consecutive runs with no remarkable change in its activity are some of the interesting features of this protocol that makes it more beneficial from both industrial and environmental points of view.
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