Magnetic Mesoporous SBA-15 Functionalized with a NHC Pd(II) Complex: An Efficient and Recoverable Nanocatalyst for Hiyama Reaction

摘要

Magnetite nanoparticles (MNPs) were covered by a silica shell and then embedded into mesoporous silica (SBA-15). Magnetic mesoporous silica (Fe3O4@SiO2-SBA) was then reacted with 3- chloropropyltriethoxysilane (CPTS), sodium salt of imidazole and 2-bromopyridine to give Fe3O4@SiO2-SBA functionalized with 3-(pyridin-2-yl)-1H-imidazol-3-ium-propyl (PIP) as a sup- ported pincer ligand for Pd(II).