A Bis(NHC)-Pd(II) Complex Supported on Magnetic Mesoporous Silica for Hydroxylation ofAryl Halides With Boric Acid

Application of a bis(NHC)-Pd(II) catalyst supported on a magnetic mesoporous silica,Fe۳O۴@SiO۲@SBA-AP-CC-bis(NHC)-Pd(II), for the hydroxylation of aryl halides with boric acid was investigated.The surface of magnetic SBA-۱۵ was subsequently treated with (۳-aminopropyl)triethoxysilane (APTES), cyanuricchloride (CC), imidazole, and ۲-bromopyridine. The modified magnetic SBA-۱۵ was then further reacted withtrans-[Pd(Cl)۲(SMe۲)۲] complex to give Fe۳O۴@SiO۲-SBA-AP-CC-bis(NHC)-Pd(II). The obtained catalyst was fullycharacterized with conventional methods. The supported complex was sufficiently catalyzed the hydroxylationof aryl halides with boric acid

کلیدواژه ها:

Magnetic SBA-۱۵ ، Hydroxylation ، Supported complex