Readily available chiral phosphine–aminophosphine ligands derived from 1-phenylethylamine for Rh-catalyzed enantioselective hydrogenations
XM Zhou, JD Huang, LB Luo, CL Zhang, Z Zheng…
Index: Zhou, Xiao-Mao; Huang, Jia-Di; Luo, Li-Bin; Zhang, Cheng-Lu; Zheng, Zhuo; Hu, Xiang-Ping Tetrahedron Asymmetry, 2010 , vol. 21, # 4 p. 420 - 424
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Citation Number: 7
Abstract
A series of new chiral phosphine–aminophosphine ligands have been prepared via a two-or three-step transformation from commercially available and inexpensive (S)-1- phenylethylamine, and successfully used in the rhodium-catalyzed asymmetric hydrogenation of various enamides, β-dehydroamino acid esters, and dimethyl itaconate. The results show that the ligand structure plays an important influence on both the ...
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