期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 18, 期 29, 页码 9011-9018出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201200408
关键词
alcohols; esters; hydrogenation; ligand design; ruthenium
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.
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