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题名: Construction of Highly Active Ruthenium(II) NNN Complex Catalysts Bearing a Pyridyl-Supported Pyrazolyl-Imidazolyl Ligand for Transfer Hydrogenation of Ketones
作者: Zeng, Fanlong1;  Yu, Zhengkun1, 2
通讯作者: 余正坤
刊名: ORGANOMETALLICS
发表日期: 2009-03-23
DOI: 10.1021/om801080p
卷: 28, 期:6, 页:1855-1862
收录类别: SCI ;  IC
文章类型: Article
部门归属: 2
项目归属: 203
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Inorganic & Nuclear ;  Chemistry, Organic
研究领域[WOS]: Chemistry
英文摘要: A family of hemilabile ruthenium(II) NNN complexes bearing a unsymmetrical 2-(benzoimidazol-2-yl)-6-(pyrazol-l-yl)pyridine ligand has been synthesized and exhibited good to excellent catalytic activity in transfer hydrogenation of ketones in refluxing 2-propanol, reaching final TOFs up to 7.2 x 10(5) h(-1) with 0.05 mol % loading. The gamma-NH effect of the benzoimidazol-2-yl moiety in the ligand and coordination modes of the metal center in a Ru(II) NNN complex has great influence on the catalytic activity of the complex catalyst in transfer hydrogenation of ketones. It has been demonstrated that one of the structural prerequisites for an active Ru(II) complex catalyst is the coordinatively unsaturated environment around the metal center in the complex or the precatalyst, and the catalytic activity of a complex catalyst can be enhanced by making its metal center cationic. This paper presents a methodology to construct new types of efficient Ru(II) complex catalysts for transfer hydrogenation of ketones.
关键词[WOS]: ASYMMETRIC TRANSFER HYDROGENATION ;  ENANTIOSELECTIVE TRANSFER HYDROGENATION ;  CROSS-COUPLINGS ;  HYDRIDE ;  IMINES ;  BASE ;  FUNCTIONALITY ;  INTERMEDIATE ;  DERIVATIVES ;  2-PROPANOL
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000264273700032
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/102305
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Organomettall Chem, Shanghai 200032, Peoples R China

Recommended Citation:
Zeng, Fanlong,Yu, Zhengkun. Construction of Highly Active Ruthenium(II) NNN Complex Catalysts Bearing a Pyridyl-Supported Pyrazolyl-Imidazolyl Ligand for Transfer Hydrogenation of Ketones[J]. ORGANOMETALLICS,2009,28(6):1855-1862.
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