期刊
TETRAHEDRON LETTERS
卷 50, 期 26, 页码 3280-3282出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2009.02.041
关键词
Ammonium salt; Phase transfer catalysis; Amination; beta-Keto esters; AS-3201
资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan
A highly efficient asymmetric amination of beta-keto esters was achieved under phase transfer conditions using chiral quaternary ammonium bromide as a catalyst. The amination products were obtained in quantitative yields with up to 97% ee. One of the amination products represents a key intermediate for the preparation of aldose reductase inhibitor AS-3201. (C) 2009 Elsevier Ltd. All rights reserved.
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