Synthesis and application of chiral phosphino-imidazoline ligands: Ir-catalyzed enantioselective hydrogenation

被引：167

作者：

Menges, F ^{[1
]}

Neuburger, M ^{[1
]}

Pfaltz, A ^{[1
]}

机构：

[1] Univ Basel, Dept Chem, CH-4056 Basel, Switzerland

来源：

ORGANIC LETTERS | 2002年 / 4卷 / 26期

关键词：

D O I：

10.1021/ol027253c

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

[GRAPHICS] A series of chiral phosphino-imidazolines (PHIM ligands) 1a-j with different substituents at the stereogenic center, the nitrogen atom of the imidazoline ring, and at the phosphorus atom were synthesized. Iridium complexes derived from these ligands have been evaluated as catalysts for the enantioselective hydrogenation of unfunctionalized olefins. In several cases, higher enantiomeric excesses were observed than with analogous phosphino-oxazoline ligands.

引用

页码：4713 / 4716

页数：4

共 23 条

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