期刊
TETRAHEDRON-ASYMMETRY
卷 16, 期 5, 页码 921-924出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetasy.2005.01.015
关键词
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Chiral alkoxy-imidazolinium salts are easily available via a five-step procedure starting from beta-aminoalcohols. This new family of alkoxy-N-heterocyclic carbene (NHC) precursors is shown to be highly active in the enantioselective copper-catalysed conjugate addition to cyclic enones. Complete conversion with low catalyst loading and good enantiomeric excesses up to 93% were obtained at room temperature. (C) 2005 Elsevier Ltd. All rights reserved.
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