期刊
TETRAHEDRON-ASYMMETRY
卷 22, 期 16-17, 页码 1640-1643出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetasy.2011.09.020
关键词
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资金
- NSFC [20972121, 91017005, 81172935]
- Program for New Century Excellent Talents in University [NCET-10-0625]
- National Mega Project on Major Drug Development [2009ZX09301-014-1]
A novel C-3-symmetric prolinol-squaramide has been developed for the asymmetric reduction of ketones by borane. By using only 5 mol % catalyst la for the reaction, high yields and excellent enantioselectivities (up to 95% yield, 93% ee) were obtained. Moreover, la can be easily recovered by simple precipitation and re-used for four cycles without losing the selectivity. (C) 2011 Elsevier Ltd. All rights reserved.
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