Issue 37, 2010
From the journal:

Chemical Communications

Well-defined and easily accessible yttrium complexes for enantioselective cyclisation of amines tethered to 1,2-di-substituted alkenes†

Yulia Chapurina,ab   Jérôme Hannedouche,ac   Jacqueline Collin,ac   Régis Guillot,c   Emmanuelle Schulz*ac  and  Alexander Trifonov*b  

* Corresponding authors

a Univ. Paris-Sud, Equipe de Catalyse Moléculaire, ICMMO, UMR 8182, Orsay, France
E-mail: emmanuelle.schulz@u-psud.fr
Fax: +33 1 69 15 46 80
Tel: +33 1 69 15 73 56

b G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinia 49, 603600 Nizhny Novgorod GSP-445, Russia
E-mail: trif@iomc.ras.ru
Fax: +7 8312 12 74 97
Tel: +7 8314 63 35 32

c CNRS, Orsay, France

Abstract

A straightforward in situ preparation of new chiral amido alkyl ate yttrium complexes is described. They catalysed the enantioselective cyclisation of 1,2-dialkyl-substituted aminopentenes in up to 77% ee, a significant value for this challenging transformation. Complex [(R)-L0][Y(CH2TMS)2·Li(THF)4] undergoes C–H bond activation resulting in the formation of an original dimeric heterobimetallic yttrium complex which also acts as an active precatalyst.

Graphical abstract: Well-defined and easily accessible yttrium complexes for enantioselective cyclisation of amines tethered to 1,2-di-substituted alkenes

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Article information

DOI
https://doi.org/10.1039/C0CC01064B
Article type
Communication
Submitted
21 Apr 2010
Accepted
04 Aug 2010
First published
23 Aug 2010

Chem. Commun., 2010,46, 6918-6920

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Well-defined and easily accessible yttrium complexes for enantioselective cyclisation of amines tethered to 1,2-di-substituted alkenes

Y. Chapurina, J. Hannedouche, J. Collin, R. Guillot, E. Schulz and A. Trifonov, Chem. Commun., 2010, 46, 6918 DOI: 10.1039/C0CC01064B

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