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期刊论文
A Ruthenium(II) Complex with a C2-Symmetric Diphosphine/Diamine Tetradentate Ligand for Asymmetric Transfer Hydrogenation of Aromatic Ketones†
Organometallics 1996, 15, 1087-1089，-0001，（）：
Summary: The trans-RuIICl2 complexes with structurally similar N,N¢-bis[o-(diphenylphosphino)benzylidene]cyclohexane-1,2-diamine and N,N¢-bis[o-(diphenylphosphino)-benzyl]cyclohexane-1,2-diamine ligands have been synthesized, and their molecular structures have been determined. The C2-symmetric diphosphine/diaminebased Ru complex acts as an excellent catalyst precursor in asymmetric transfer hydrogenation of acetophenone in a 0.1 M 2-propanol solution, leading to 2-phenylethanol in 97% ee and in 93% yield after 7h at 45℃. This transfer hydrogenation is characterized by low reversibility under these conditions.
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