Iridium(I)-catalyzed asymmetric intermolecular hydroarylation of norbornene with benzamide

被引:69
作者
Aufdenblatten, R [1 ]
Diezi, S [1 ]
Togni, A [1 ]
机构
[1] ETH Zentrum, Swiss Fed Inst Technol, Inorgan Chem Lab, CH-8092 Zurich, Switzerland
来源
MONATSHEFTE FUR CHEMIE | 2000年 / 131卷 / 12期
关键词
iridium; asymmetric catalysis; hydroarylation; hydroamination; norbornene;
D O I
10.1007/s007060070014
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Starting from the dinuclear chloro-bridged Ir(I) complexes [IrCl(PP)](2) (PP=(R)-(6,6'-dimethylbiphenyl-2,2'-diyl)- 1, 1'-bis-(diphenylphosphine),and (R)-1-((S)-2-(diphenlyphosphino-ferrocenyl))-ethyldicyclohexyl-phosphine),a new class of cyclopentadienyl Ir(I) complexes containing a chiral bisphosphine ([IrCp(PP)]) was prepared and characterized. These new complexes are suited precatalysts for the direct hydroarylation of norbornene with benzamide. 2-(exo-Norbornyl)-benzamide is formed with an enantiomeric excess of up to 94% by the use of 1 mol% iridium, albeit in low yield.
引用
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页码:1345 / 1350
页数:6
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