Effect of borane source on the enantioselectivity in the enantiopure oxazaborolidine-catalyzed asymmetric borane reduction of ketones

被引:6
作者
Wang, Xiao [1 ]
Du, Juanjuan [1 ]
Liu, Han [1 ]
Du, Da-Ming [1 ]
Xu, Jiaxi [1 ]
机构
[1] Peking Univ, BNLMS, Key Lab Bioorgan Chem & Mol Engn, Coll Chem & Mol Engn,Minist Educ, Beijing 100871, Peoples R China
关键词
D O I
10.1002/hc.20370
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The effect of borane source on enantioselectivity in the enantiopure oxazaborolidine-catalyzed asymmetric borane reduction of ketones has been investigated by using (S)-3,1,2-oxazaborobicyclo[3.3.0]octane and (S)-7,3,1,2-thiaxazaborobicyclo[3.3.0]octane as catalysts. The results indicate that the enantioselective order of different borane sources is borane-dimethyl sulfide < borane-N,N-diethylaniline < borane-THF for the asymmetric reduction of a ketone under the same conditions. (c) 2007 Wiley Periodicals, Inc.
引用
收藏
页码:740 / 746
页数:7
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