期刊
TETRAHEDRON
卷 64, 期 16, 页码 3488-3493出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2008.01.121
关键词
iron catalyst; cobalt catalyst; conjugate addition; enantioselectivity; thiol
The enantioselective conjugate addition of thiols to (E)-3-crotonoyloxazolidin-2-one was effectively catalyzed by the Fe(BF4)(2)center dot 6H(2)O/(S,S)-ip-pybox catalyst. and the addition product was obtained with up to a 95% ee. Furthermore, the CO(ClO4)(2)center dot 6H(2)O/(S,S)-ip-pybox catalyst also catalyzed the same reaction with a high enantioselectivity. (c) 2008 Elsevier Ltd. All rights reserved.
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