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Novel chiral tetraaza ligands: synthesis and application in asymmetric transfer hydrogenation of ketones

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Novel chiral tetraaza ligands synthesis and application in asymmetric transfer hydrogenation of ketones.htm (413bytes)
Date
2007-04
Author
Shen, Wei-Yi
Zhang, Hui
章慧
Zhang, Hua-Lin
Gao, Jing-Xing
高景星
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  • 化学化工-已发表论文 [14469]
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Abstract
Novel chiral tetraaza ligands, N-1,N-2-bis(2-(piperidin-1-yl)benzylidene)cyclohexane-1,2-diamine 1 and N-1,N-2-bis(2-(piperidin1-yl)benzyl)cyclohexane-1,2-diamine 2, have been synthesized and fully characterized by analytical and spectroscopic methods. The structure of (R,R)-1 has been established by X-ray crystallography. Asymmetric transfer hydrogenation of aromatic ketones with the catalysts prepared in situ from [lrHCl(2)(COD)](2) and the chiral tetraaza ligands in 2-propanol gave the corresponding optically active secondary alcohols in high conversions and good ees (up to 91%) under mild reaction conditions. (c) 2007 Published by Elsevier Ltd.
Citation
TETRAHEDRON-ASYMMETRY,2007,18(6):729-733
URI
http://dx.doi.org/doi:10.1016/j.tetasy.2007.03.013
https://dspace.xmu.edu.cn/handle/2288/9075

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