title: Base-Stabilized Phosphinidene Boranes by Silylium-Ion Abstraction.
abstract: We report the preparation of N-heterocyclic carbene (NHC)-stabilized compounds containing P=B double bonds. The reaction of the highly functionalized phosphinoborane Mes*(SiMe3 )P-B(Cl)Cp* with Lewis bases allows access to base-stabilized phosphinidene boranes Mes*P=B(L)Cp* (L=4-dimethylaminopyridine (DMAP), NHC) by Me3 SiCl elimination. The formation of these species is shown to proceed through transient borylphosphide anions generated by Me3 Si abstraction.
authors.affiliation: EaStCHEM, School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK.
authors.forename: Amy N
authors.initials: AN
authors.lastname: Price
authors.affiliation: EaStCHEM, School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK. michael.cowley@ed.ac.uk.
authors.forename: Michael J
authors.identifier: http://orcid.org/0000-0003-0664-2891
authors.initials: MJ
authors.lastname: Cowley
keywords: boron; carbenes; multiple bonds; phosphorus