85385-06-4Relevant articles and documents
Chiral phosphine-phosphoramidite ligands for highly efficient Ir-catalyzed asymmetric hydrogenation of sterically hindered N-arylimines
Hou, Chuan-Jin,Wang, Ya-Hui,Zheng, Zhuo,Xu, Jie,Hu, Xiang-Ping
supporting information; experimental part, p. 3554 - 3557 (2012/08/29)
A mild and general iridium-catalyzed, highly enantioselective hydrogenation of sterically hindered N-arylimines with a new H8-BINOL-derived phosphine-phosphoramidite ligand has been developed. The present catalytic system features high turnover numbers (up to 100000) and good to perfect enantioselectivities (up to 99% ee) for the hydrogenation of a variety of sterically hindered N-arylimines.
Chiral organic catalysts for the stereoselective reduction of carbon-nitrogen double bonds for the preparation of enantiomerically enriched amines
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Page/Page column 12, (2009/06/27)
The invention relates to compounds of general formula (I): wherein R1-R7 are as defined in the description for use as catalysts in the stereoselective reduction of imines in the presence of trichlorosilane as reducing agent.
Asymmetric hydrogenation method of a ketonic compound and derivative
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, (2008/06/13)
The present invention relates to a process for the asymmetric hydrogenation of a ketonic compound and derivative. The invention relates to the use of optically active metal complexes as catalysts for the asymmetric hydrogenation of a ketonic compound and derivative. The process for the asymmetric hydrogenation of a ketonic compound and derivative is characterized in that the asymmetric hydrogenation of said compound is carried out in the presence of an effective amount of a metal complex comprising as ligand an optically active diphosphine corresponding to one of the following formulae: STR1