title: Carbamoyl-substituted N-heterocyclic carbene complexes of palladium(II): application to Sonogashira cross-coupling reactions.
abstract: [reaction: see text]. The first examples of N-carbamoyl-substituted heterocyclic carbene Pd(II) complexes are described. These thermal and hydrolytically stable complexes are readily prepared from carbamoyl imidazolium salts and efficiently promote Sonogashira cross-coupling reactions under mild conditions. Cesium carbonate is also shown to be an effective base for the coupling of aryl bromides.
authors.affiliation: Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3H6. rbatey@chem.utoronto.ca
authors.forename: Robert A
authors.initials: RA
authors.lastname: Batey
authors.forename: Ming
authors.initials: M
authors.lastname: Shen
authors.forename: Alan J
authors.initials: AJ
authors.lastname: Lough