Chiral Amido Alkyl Rare Earth Complexes: A New Family of Asymmetric Intramolecular Hydroamination Catalysts

被引：56

作者：

Aillaud, Isabelle ^{[1
]}

Lyubov, Dmitrii ^{[2
]}

Collin, Jacqueline ^{[1
]}

Guillot, Regis

Hannedouche, Jerome ^{[1
]}

Schulz, Emmanuelle ^{[1
]}

Trifonov, Alexander ^{[2
]}

机构：

[1] Univ Paris 11, CNRS, ICMMO, Equipe Catalyse Mol,UMR 8182, F-91405 Orsay, France

[2] Russian Acad Sci, GA Razuvaev Inst Organometall Chem, Nizhnii Novgorod 603600, Russia

来源：

ORGANOMETALLICS | 2008年 / 27卷 / 22期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1021/om800618k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

New chiral binaphthylamido alkyl ate and neutral yttrium and ytterbium complexes have been synthesized and characterized. X-ray structures have been obtained for ate alkyl complexes [(R)C20H12(NC5H9)(2)]Y[(mu-Me)(2)Li(THF)(2)(mu-Me)Li(THF)] and [(R)-C20H12(NC5H9)(2)]Ln[(mu-Me)(2)Li(TMEDA)(mu-Me)Li(OEt2)] (Ln = Y, Yb) and for the neutral complex [(R)-C20H12(NC5H9)(2)]YCH2SiMe3(DME). Both types of complexes can be easily prepared in a one-pot procedure starting from yttrium and ytterbium chlorides and used in situ. They proved to be very efficient catalysts for enantioselective intramolecular hydroamination of aminopentenes or aminohexene at room temperature with enantionteric excesses up to 83%.

引用

页码：5929 / 5936

页数：8

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