New Chiral Metal Cluster Systems for Catalytic AsymmetricSyntheses of Chiral Alcohols  

作　　者：LIYan-yun CHENJian-shan YANGChuan-bo DONGZhen-rong LIBao-zhu ZHANGHui GAOJing-xing TAKAOIkariya 

机构地区：[1]DepartmentofChemistry,InstituteofPhysicalChemistry,StateKeyLaboratoryofPhysicalChemistryofSolidSurface,XiamenUniversity,Xiamen361005,P.R.China [2]GraduateSchoolofScienceandEngineering,TokyoInstituteoftechnology&CREST,2-12-1O-okayama,Meguro-ku,Tokyo152-8552,Japan

出　　处：《Chemical Research in Chinese Universities》2004年第2期180-184,共5页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.2 0 0 730 34,2 0 3730 5 6,2 0 1710 37),Fujian Provinceand Technology Comm ission(No.2 0 0 2 F0 16 ) and Xiamen Science and Technology Com mission(No.35 0 2 Z2 0 0 2 10 4 4 )

摘　　要：The efficient chiral Ru 3(CO) 12 systems were prepared in situ from Ru 3(CO) 12 and various chiral diimino-or diamino-diphosphine tetradentate ligands. The systems have been used for the asymmetric transfer hydrogenation of propiophenone in 2-propanol, leading to 1-phenyl-1-propanol in a 98% yield and 96% e.e. The IR study suggests that the carbonyl hydride anion [HRu 3(CO) 11]- most probably exists as a principal species under the reaction conditions. The high chiral efficiency may be due to the synergetic effect produced by the neighboring ruthenium atoms and a special chiral micro-environment involving the polydentate ligand and the Ru 3 framework.The efficient chiral Ru 3(CO) 12 systems were prepared in situ from Ru 3(CO) 12 and various chiral diimino-or diamino-diphosphine tetradentate ligands. The systems have been used for the asymmetric transfer hydrogenation of propiophenone in 2-propanol, leading to 1-phenyl-1-propanol in a 98% yield and 96% e.e. The IR study suggests that the carbonyl hydride anion [HRu 3(CO) 11]- most probably exists as a principal species under the reaction conditions. The high chiral efficiency may be due to the synergetic effect produced by the neighboring ruthenium atoms and a special chiral micro-environment involving the polydentate ligand and the Ru 3 framework.

关 键 词：Chiral cluster systems Asymmetric transfer hydrogenation Aromatic ketones 

分 类 号：O625.42[理学—有机化学]