Synthesis and Catalytic Activity of a Cationic Pd(II) N-heterocyclic Carbene Complex

被引：3

作者：

Kariofillis, Stavros K. ^{[1
]}

Cesanek, Lauren A. ^{[1
]}

Kassel, W. Scott ^{[2
]}

Piro, Nick A. ^{[2
]}

Swails, Roxy J. L. ^{[1
]}

机构：

[1] Lafayette Coll, Dept Chem, Easton, PA 18042 USA

[2] Villanova Univ, Dept Chem, Villanova, PA 19085 USA

来源：

POLYHEDRON | 2016年 / 114卷

关键词：

N-Heterocyclic carbene; Water soluble catalyst; Suzuki-Miyaura cross-coupling; Palladium; Pd-NHC; COUPLING REACTIONS; PALLADIUM(II) COMPLEXES; HIGHLY EFFICIENT; AQUEOUS-MEDIA; NEAT WATER; SUZUKI; LIGANDS; CHEMISTRY; PRECATALYSTS; SOLVENT;

D O I：

10.1016/j.poly.2016.01.002

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A cationic palladium(II) complex, [1,3-bis(N-methylpyridinium-2-ylmethyl)imidazolin-2-ylidene] palladium(II) triiodide (3), was synthesized from the imidazolium salt 1,3-bis(N-methylpyridinium-2-ylmethyl)imidazolium triiodide (2) and characterized by H-1 and C-13{H-1} NMR spectroscopy, elemental analysis, and X-ray crystallography. X-ray crystallography revealed that the pyridinium substituted N-heterocyclic carbene ligand exhibits very low steric bulk based on calculated %V-bur values. Catalytic application of 3 was tested via the Suzuki-Miyaura cross-coupling of aryl halides with phenylboronic acid in aqueous solutions. Catalytic results suggest 3 catalyzes boronic acid homocoupling while palladium nanoparticles are likely responsible for the observed cross-coupling. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：317 / 324

页数：8

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