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学科主题: 物理化学
题名: Iridium phosphine abnormal N-heterocyclic carbene complexes in catalytic hydrogen transfer reactions
作者: Gong, Xue1, 2;  Zhang, Hong1;  Li, Xingwei2, 3
通讯作者: HongZhang ;  李兴伟
关键词: Abnormal N-heterocylic carbene ;  Cyclometalation ;  Iiridium hydride ;  Hydrogen-borrowing ;  Dehydrogenation
刊名: TETRAHEDRON LETTERS
发表日期: 2011-10-26
DOI: 10.1016/j.tetlet.2011.08.058
卷: 52, 期:43, 页:5596-5600
收录类别: SCI
文章类型: Article
部门归属: 2
项目归属: 02T3
产权排名: 2,1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Organic
摘要: Iridium phosphine abnormal N-heterocyclic carbene complexes in catalytic hydrogen transfer reactions
研究领域[WOS]: Chemistry
英文摘要: Several iridium complexes bearing chelating abnormal N-heterocyclic carbenes (NHCs) are shown to be active catalysts for transfer hydrogenation of ketones or enones, dehydrative C-C coupling between primary and secondary alcohols, and dehydrogenation of benzyl alcohol to benzyl benzoate. In the transfer hydrogenation of acetophenone, abnormal NHC complexes give higher activity than a normal analogue. Dehydrative C-C coupling reactions between primary and secondary alcohols result in beta-alkylation of the secondary alcohols, using primary alcohols as the apparent alkylating reagents, and such reactions proceed with high yield and selectivity. These catalytic processes are known to involve metal-mediated temporary borrowing of hydrogen from alcohols and subsequent delivery of the hydrogen to C=C and /or C=O bonds. (C) 2011 Elsevier Ltd. All rights reserved.
关键词[WOS]: CROSS-COUPLING REACTIONS ;  C-H ACTIVATION ;  OXIDANT-FREE OXIDATION ;  SECONDARY ALCOHOLS ;  BETA-ALKYLATION ;  IMIDAZOLIUM SALTS ;  INTRAMOLECULAR HYDROAMINATION ;  ASYMMETRIC HYDROGENATION ;  COORDINATION CHEMISTRY ;  PALLADIUM COMPLEXES
语种: 英语
WOS记录号: WOS:000295742400013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115608
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.NE Normal Univ, Inst Polyoxometalate Chem, Dept Chem, Changchun 130024, Jilin, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Nanyang Technol Univ, Div Chem & Biol Chem, Sch Phys & Math Sci, Singapore, Singapore

Recommended Citation:
Gong, Xue,Zhang, Hong,Li, Xingwei. Iridium phosphine abnormal N-heterocyclic carbene complexes in catalytic hydrogen transfer reactions[J]. TETRAHEDRON LETTERS,2011,52(43):5596-5600.
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