A family of novel cationic ruthenium pincer complexes: Synthesis, characterization and catalytic activity in the transfer hydrogenation of ketones

被引：17

作者：

Wang, Lei ^{[1
]}

Pan, Hai-Ran ^{[1
]}

Yang, Qin ^{[1
]}

Fu, Hai-Yan ^{[1
]}

Chen, Hua ^{[1
]}

Li, Rui-Xiang ^{[1
]}

机构：

[1] Sichuan Univ, Coll Chem, Minist Educ, Key Lab Green Chem & Technol, Chengdu 610064, Sichuan, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2011年 / 14卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Ruthenium; Phosphine; Tridentate nitrogen; Transfer hydrogenation; Ketone; ASYMMETRIC TRANSFER HYDROGENATION; PYRAZOLYL-IMIDAZOLYL LIGAND; BEARING;

D O I：

10.1016/j.inoche.2011.05.037

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A family of novel cationic ruthenium complexes [RuHL(PAr3)(2)]Cl (Ar= phenyl, p-methoxyphenyl, and p-trifluoromethylphenyl; L= 2,6-bis(1,5-diphenyl-1H-pyrazol-3-yl)pyridine) has been synthesized and characterized by IR, P-31{H-1} NMR, H-1 NMR and elemental analyses. The [RuHL(PPh3)(2)]Cl was further identified by X-ray crystallography. These complexes exhibit good to excellent catalytic activities for the transfer hydrogenation of ketones in refluxing 2-propanol, and the highest TOF is up to 3534 h(-1). The effect of electronic factors of these complexes on the transfer hydrogenation of ketones reveals that the catalytic activity is promoted by the electron-withdrawing phosphine. (C) 2011 Elsevier B.V. All rights reserved.

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页码：1422 / 1427

页数：6

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