Organolanthanide-Catalyzed Intramolecular Hydroamination/Cyclization of Amines Tethered to 1,2-Disubstituted Alkenes
作者:Jae-Sang Ryu、Tobin J. Marks、Frank E. McDonald
DOI:10.1021/ol010129t
日期:2001.10.1
[reaction: see text] This contribution reports the organolanthanide-catalyzed intramolecular hydroamination/cyclization of amines tethered to 1,2-disubstituted alkenes to afford the corresponding mono- and disubstituted pyrrolidines and piperidines by using coordinatively unsaturated complexes of the type (eta(5)-Me(5)C(5))(2)LnCH(TMS)(2) (Ln = La, Sm), [Me(2)Si(eta(5)-Me(4)C(5))(2)]NdCH(TMS)(2),
[反应:参见文章]该文献报道了有机镧系元素催化的胺分子内胺加氢胺化/环化反应,将胺束缚在1,2-二取代的烯烃上,通过使用类型为(η(5)的配位不饱和配合物,提供相应的单取代和二取代的吡咯烷和哌啶)-Me(5)C(5))(2)LnCH(TMS)(2)(Ln = La,Sm),[Me(2)Si(eta(5)-Me(4)C(5)) (2)] NdCH(TMS)(2),[Et(2)Si(eta(5)-Me(4)C(5))(eta(5)-C(5)H(4))] NdCH (TMS)(2)和[Me(2)Si(eta(5)-Me(4)C(5))((t)()BuN)] LnE(TMS)(2)(Ln = Sm, Y,Yb,Lu; E = N,CH)作为预催化剂。[Me(2)Si(eta(5)-Me(4)C(5))((t)BuN)] LnE(TMS)(2)介导空间内需要氨基烯烃的分子内加氢胺化/环化反应,从而提