Effect of BF3 on the enantioselective reduction of trifluoromethyl ketones using a chiral lactam alcohol with borane

被引:7
|
作者
Harauchi, Yuki [1 ]
Takakura, Chihiro [1 ]
Furumoto, Toshio [1 ]
Yanagita, Ryo C. [1 ]
Kawanami, Yasuhiro [1 ]
机构
[1] Kagawa Univ, Fac Agr, Dept Appl Biol, Miki, Kagawa 7610795, Japan
关键词
GENERATED IN-SITU; OXAZABOROLIDINE-CATALYZED REDUCTION; (TRIFLUOROACETYL)BIPHENYL DERIVATIVES; ASYMMETRIC REDUCTION;
D O I
10.1016/j.tetasy.2015.02.011
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The addition of BF3 center dot THF to an oxazaborolidine catalyst prepared in situ from chiral lactam alcohol 2 and borane enhanced the enantioselectivities (up to 90% ee) and yield (up to 91%) during the reduction of reactive trifluoromethyl ketones at room temperature. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:333 / 337
页数:5
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