期刊
TETRAHEDRON-ASYMMETRY
卷 23, 期 24, 页码 1625-1627出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetasy.2012.11.002
关键词
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资金
- Spanish Ministerio de Economia y Competitividad [CTQ2010-20387, CSD2007-00006]
- FEDER
- Generalitat Valenciana [Prometeo/2009/039]
- University of Alicante
New primary amine-guanidines derived from the monoguanylation of (1S,2S)- and (1R,2R)-cyclohexane-1,2-diamine have been prepared and used as chiral organocatalysts for the enantioselective conjugate addition of alpha,alpha-disubstituted aldehydes to maleimides. The corresponding Michael adducts bearing a new stereocenter were generally obtained in high or quantitative yields and with good enantioselectivities (up to 93% ee). (C) 2012 Elsevier Ltd. All rights reserved.
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