title: C2-symmetric S/C/S ligands based on N-heterocyclic carbenes: a new ligand architecture for asymmetric catalysis.
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.
authors.affiliation: Departamento de Química Orgánica, Univ. de Sevilla, Apdo. de Correos 1203, 41071 Seville, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: Iglesias-Sigüenza
authors.forename: Abel
authors.initials: A
authors.lastname: Ros
authors.forename: Elena
authors.initials: E
authors.lastname: Díez
authors.forename: Antonio
authors.initials: A
authors.lastname: Magriz
authors.forename: Arcadio
authors.initials: A
authors.lastname: Vázquez
authors.forename: Eleuterio
authors.initials: E
authors.lastname: Alvarez
authors.forename: Rosario
authors.initials: R
authors.lastname: Fernández
authors.forename: José M
authors.initials: JM
authors.lastname: Lassaletta