C      2  -Symmetric S/C/S ligands based on N-heterocyclic carbenes: a new ligand architecture for asymmetric catalysis

Javier Iglesias-Sigüenza; Abel Ros; Elena Díez; Antonio Magriz; Arcadio Vázquez; Eleuterio Álvarez; Rosario Fernández; José M. Lassaletta

doi:10.1039/B910846G

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C₂-Symmetric S/C/S ligands based on N-heterocyclic carbenes: a new ligand architecture for asymmetric catalysis†

Javier Iglesias-Sigüenza,^a Abel Ros,^b Elena Díez,^a Antonio Magriz,^b Arcadio Vázquez,^b Eleuterio Álvarez,^b Rosario Fernández*^a and José M. Lassaletta*^b

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* Corresponding authors

^a Departamento de Química Orgánica, Univ. de Sevilla, Apdo. de Correos 1203, Spain
E-mail: ffernan@us.es
Fax: +34 954624960

^b Instituto de Investigaciones Químicas (CSIC-US), Américo Vespucio 49, Spain
E-mail: jmlassa@iiq.csic.es
Fax: +34 95 4460565

Abstract

Neutral, C₂-symmetric S/C/S ligands based on N-heterocyclic carbenes and thioether functionalities were incorporated into transition metal complexes characterised by two direct metal-stereogenic sulfur bonds. This new ligand design was applied to 1,3-dipolar cycloadditions as the first example of the use silver of carbenes in asymmetric catalysis.

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Article information

DOI: https://doi.org/10.1039/B910846G
Article type: Communication
Submitted: 02 Jun 2009
Accepted: 30 Jul 2009
First published: 28 Aug 2009

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Dalton Trans., 2009, 8485-8488

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C ₂ -Symmetric S/C/S ligands based on N-heterocyclic carbenes: a new ligand architecture for asymmetric catalysis

J. Iglesias-Sigüenza, A. Ros, E. Díez, A. Magriz, A. Vázquez, E. Álvarez, R. Fernández and J. M. Lassaletta, Dalton Trans., 2009, 8485 DOI: 10.1039/B910846G

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Dalton Transactions