Phosphine-Imidazolyl Ligands for the Efficient Ruthenium-Catalyzed Hydrogenation of Carboxylic Esters

被引：44
|
作者：
Junge, Kathrin [1 ]
Wendt, Bianca [1 ]
Westerhaus, Felix Alexander [1 ]
Spannenberg, Anke [1 ]
Jiao, Haijun [1 ]
Beller, Matthias [1 ]
机构：
[1] Univ Rostock, Leibniz Inst Katalyse eV, D-18059 Rostock, Germany
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2012年 / 18卷 / 29期
关键词：
alcohols; esters; hydrogenation; ligand design; ruthenium; GAUSSIAN-BASIS SETS; ENANTIOSELECTIVE HYDROGENATION; CHEMOSELECTIVE REDUCTION; ASYMMETRIC-SYNTHESIS; ATOMS LI; COMPLEXES; AMIDES; CONVENIENT; ALCOHOLS; AMINES;
D O I：
10.1002/chem.201200408
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The synthesis of phosphineimidazolyl ligands 1 and 2 in good yields is presented. In combination with [{Ru(benzene)Cl2}2], ligands 1?c and 1?e formed efficient catalyst systems for the selective hydrogenation of various carboxylic esters into their corresponding primary alcohols. Furthermore, the structures of four ruthenium complexes with ligands 1?b, 1?c, 1?d, and 1?e were determined by X-ray crystallography, which showed the formation of different coordination modes depending on the ligand structure.
引用
收藏
页码：9011 / 9018
页数：8
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