Synthesis of N,O-heterocyclic carbene and coordination to rhodium(I) and copper(I).
Fiche publication
Date publication
janvier 2010
Auteurs
Membres identifiés du Cancéropôle Est :
Dr BELLEMIN-LAPONNAZ Stéphane
Tous les auteurs :
Bellemin-Laponnaz S
Lien Pubmed
Résumé
5,7-Di-tert-butyl-3-phenyl benzoxazolium tetra fluoroborate 1 could be prepared by simple reaction of the corresponding aminophenol with triethyl orthoformate under acidic conditions. Both rhodium(I) and copper(I) complexes with benzoxazol-2-ylidene ligand were then efficiently synthesised in a straightforward and smooth manner involving the reaction of benzoxazolium salt 1 with metal precursor and an external base. The complexes have been fully characterised and used in metal-catalysed hydrosilylation of ketones, where they showed poor catalytic activity, presumably due to low stability of the complexes under those conditions. (C) 2009 Elsevier Ltd. All rights reserved.
Référence
Polyhedron. 2010 Jan 13;29(1):30-3.