Functionalized magnetic core-shell Fe3O4@SiO2 nanoparticles by Isoniazid to immobilization of palladium nanoparticles and investigation of its catalytic application in the Suzuki coupling reactions

This report contains the procedure implemented in the preparation of Fe3O4@SiO2/Iso/Pd as a ‎novel magnetic nanocatalyst, in which isoniazide groups are utilized (as linkers) to secure ‎palladium nanoparticles (Pd NPs) to the Fe3O4 exterior without agglomeration. The resultant ‎catalyst was characterized through performing TEM, FESEM, WDX, XRD, FTIR, ICP, ‎EDS, and XPS. The catalytic behavior of Fe3O4@SiO2/Iso/Pd was investigated to synthesis ‎of biaryl compounds by Suzuki coupling reactions. Interestingly, the novel catalyst was able ‎to be recovered and recycled six times without any noticeable loss in activity.‎For this study, we began our analysis of Suzuki-Miyaura reactions by using 4-bromotoluene and benzeneboronic acid as a model reaction and the effects of a variety of bases, temperatures, and solvents was investigated using Fe3O4@SiO2/Iso/Pd as the heterogeneous catalyst

Keywords:

Palladium , Nanocatalyst , Magnetic , Suzuki , Coupling