RSC Advances

Asymmetric transfer hydrogenation of unsymmetrical benzils

H Zhang, D Feng, H Sheng, X Ma, J Wan, Q Tang

Index: Zhang, Hao; Feng, Dandan; Sheng, Haibo; Ma, Xuebing; Wan, Jinwei; Tang, Qian RSC Advances, 2014 , vol. 4, # 13 p. 6417 - 6423

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Citation Number: 7

Abstract

In this paper, the asymmetric transfer hydrogenation of unsymmetrical benzils with m, p- substituents was conducted with a substrate/catalyst molar ratio of 100 at 40° C for 24 h to produce (S, S)-hydrobenzoins in good yields (76.2% to 97.1%) with high diastereomeric (syn/anti= 10.8 to 29.7/1) and enantiomeric purities (86.1% ee syn to 98.9% ee syn). Unfortunately, the unsymmetrical benzils with the o-substituents such as electron-donating ...

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