Enantioselective Michael Additions to α,β-Unsaturated Imides Catalyzed by a Salen−Al Complex
作者:Mark S. Taylor、Eric N. Jacobsen
DOI:10.1021/ja037177o
日期:2003.9.1
conjugate addition of di- and trisubstituted nitriles to a wide range of acyclic alkyl- and aryl-substituted α,β-unsaturated imides. This new methodology provides access to multifunctional compounds that previously have not been readily accessible in enantioenriched form. Synthetic applications of these products include the preparation of enantiomerically enriched piperidines, as exemplified by an expedient
(Salen) 铝配合物 1b 是一种有效的催化剂,用于将二取代和三取代腈与各种无环烷基和芳基取代的 α,β-不饱和酰亚胺共轭加成。这种新方法提供了对以前不容易以对映体富集形式获得的多功能化合物的访问。这些产品的合成应用包括制备富含对映异构体的哌啶,例如 (-)-帕罗西汀的不对称催化合成。