期刊
TETRAHEDRON
卷 63, 期 28, 页码 6587-6602出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2007.03.130
关键词
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The Cu-I-Fesulphos catalyst system (<= 3 mol %) shows an excellent performance in the asymmetric 1,3-dipolar cycloaddition of azomethine ylides. High to very high levels of reactivity, endo/exo selectivity, and enantioselectivity ( 69->99% ee) are generally achieved with a very wide range of azomethine ylides and dipolarophiles. Based on experimental and computational studies data, a model that accounts for this high enantiocontrol is proposed. (c) 2007 Elsevier Ltd. All rights reserved.
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