Tandem enantioselective conjugate addition-Mannich reactions:: efficient multicomponent assembly of dialkylzincs, cyclic enones and chiral N-sulfinimines

被引:39
作者
Gonzalez-Gomez, Jose C.
Foubelo, Francisco [1 ]
Yus, Miguel
机构
[1] Univ Alicante, Fac Ciencias, Dept Quim Organ, Alicante 03080, Spain
关键词
conjugate addition; multicomponent reaction; chiral sulfinimines; beta-amino ketones; dialkyl zincs;
D O I
10.1016/j.tetlet.2008.02.076
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A convenient access to enantiopure beta-amino ketones through a multicomponent reaction of dialkyl zinc reagents, cyclic enones and chiral N-tert-butanesulfinimines is disclosed. Four diastereoisomers can be selectively obtained by the appropriate choice of the chiral ligand (L or ent-L) and the chiral N-sulfinimine (R-S or S-S). The protocol is particularly efficient when enolisable N-sulfinimines are used. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2343 / 2347
页数:5
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