Fast transfer hydrogenation using a highly active orthometalated heterocyclic carbene ruthenium catalyst

被引：76
作者：
Baratta, W
Schütz, J
Herdtweck, E
Herrmann, WA
Rigo, P
机构：
[1] Univ Udine, Dipartimento Sci & Tecnol Chim, I-33100 Udine, Italy
[2] Tech Univ Munich, Dept Chem, D-85747 Garching, Germany
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2005年 / 690卷 / 24-25期
关键词：
ruthenium; carbene; orthometalation; transfer hydrogenation; X-ray structure;
D O I：
10.1016/j.jorganchem.2005.07.001
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The free carbene 1,3,4-triphenyl-4,5-dihydro-1H-1,2,4-triazol-5-ylidene reacts with trans,cis-RuHCl(PPh3)(2)(ampy) (ampy= 2-(aminomethyl)pyridine) affording an orthometalated N-heterocyclic carbene complex characterized by an X-ray diffraction study. This compound in presence of NaOH shows very high catalytic activity for the transfer hydrogenation of several ketones to alcohols using 2-propanol as hydrogen source, affording TOF values up to 120,000 h(-1) (at 50% conversion). (c) 2005 Elsevier B.V. All rights preserved.
引用
收藏
页码：5570 / 5575
页数：6
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