Type: Article
A new N-heterocyclic carbene palladium complex immobilized on nano silica: An efficient and recyclable catalyst for Suzuki-Miyaura C-C coupling reaction
Journal: Journal of Organometallic Chemistry (0022328X)Year: 2016Volume: 809Issue: Pages: 31 - 37
Mohammadpoor-Baltork, IrajSafaei, Shirin Khosropour, Ahmad R. Pahlevanneshan Z. Pahlevanneshan Z.Moghadam M.aMoghadam M.aMirkhani V.aMirkhani V.aTangestaninejad S.aTangestaninejad S.a Mohammadpoor–Baltork I. Mohammadpoor–Baltork I.Loghmani-Khouzani H.Loghmani-Khouzani H.
DOI:10.1016/j.jorganchem.2016.02.019Language: English
Abstract
A new catalytic system based on Pd-NHC complex utilizing (4-pyridyl)bis(imidazolyl)methane as a bidentate NHC ligand supported on nano. silica is introduced. The catalyst was characterized by FT-IR spectroscopy, thermogravimetric analysis, field emission scanning electron microscopy, energy dispersive X-ray analysis, transmission electron microscopy and elemental analysis. This heterogeneous catalytic system exhibited excellent activity in the Suzuki-Miyaura coupling reaction of various aryl halides with phenylboronic acid, and was reusable several times without significant loss of its catalytic activity. (C) 2016 Elsevier B.V. All rights reserved.