P-Stereogenic pincer iridium complexes: Synthesis, structural characterization and application in asymmetric hydrogenation

被引：23

作者：

Yang, Zehua ^{[1
]}

Wei, Xuan ^{[1
]}

Liu, Delong ^{[1
]}

Liu, Yangang ^{[1
]}

Sugiya, Masashi ^{[3
]}

Imamoto, Tsuneo ^{[3
,4
]}

Zhang, Wanbin ^{[1
,2
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Pharm, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China

[3] Nippon Chem Ind Co Ltd, Organ R&D Dept, Koto Ku, Tokyo 1368515, Japan

[4] Chiba Univ, Grad Sch Sci, Dept Chem, Inage Ku, Chiba 2638522, Japan

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2015年 / 791卷

基金：

中国国家自然科学基金;

关键词：

P-Stereogenic phosphine ligand; Pincer iridium complex; Asymmetric hydrogenation; CHIRAL PHOSPHINE-LIGANDS; EFFICIENT HYDROGENATION; CARBON-DIOXIDE; PYBOX; DIARYLPHOSPHINES; TRANSFORMATION; REACTIVITY; REDUCTION; ALKYNES; ENONES;

D O I：

10.1016/j.jorganchem.2015.05.002

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

P-Stereogenic PNP type pincer iridium complexes (PNPIrH2Cl)-Ir-tBuMe (3) and (PNPIrH3)-Ir-tBuMe (4) were synthesized in reasonable yields and characterized by H-1 NMR, C-13 NMR, P-31 NMR, HRMS and/or single crystal X-ray diffraction. The ORTEP diagram shows that the coordination geometry around the iridium center of complex 3 is approximately octahedral. The chlorinated iridium complex (3) and/or the trihydride iridium complex (4) were used as catalysts in the asymmetric hydrogenation of ketones, olefins and quinoline to provide the desired products with up to 17% enantioselectivity. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：41 / 45

页数：5

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