期刊
TETRAHEDRON LETTERS
卷 43, 期 7, 页码 1189-1191出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(01)02355-3
关键词
enones; zinc and compound; addition reactions; asymmetric synthesis
BINOL-based diphosphonites in which ferrocene functions as the achiral backbone are excellent chiral ligands in the Cu(OTf)(2)-catalyzed conjugate addition of Et2Zn to enones, enantioselectivities of up to 99% being observed. (C) 2002 Elsevier Science Ltd. All rights reserved.
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