期刊
TETRAHEDRON LETTERS
卷 58, 期 24, 页码 2400-2403出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2017.05.022
关键词
(APT) catalysts; Bifunctional; Multiple hydrogen-bonding; Nitro-Mannich reaction; isatin-derived N-Boc ketimines
资金
- National Natural Science Foundation of China [51373067]
A series of bifunctional asymmetric phase-transfer catalysts bearing multiple hydrogen-bonding donors derived from cinchona alkaloids are synthesized, and successfully applied to asymmetric nitro-Mannich of isatin-derived N-Boc ketimines. The products 3-substituted 3-amino-oxindoles were constructed in excellent yields (96-99%) and good enantioselectivities (up to 95% ee). (C) 2017 Published by Elsevier Ltd.
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