title: Phosphepines: convenient access to phosphinidene complexes.
abstract: Reaction of o-diethynylbenzene with transition metal-complexed primary phosphines gives in a single base-induced step stable phosphepine complexes as confirmed by X-ray data. At 75-80 degrees C these phosphepines undergo clean cheletropic elimination of naphthalene to give transient carbene-like phosphinidene complexes that can be trapped in high yield by alkenes, alkynes, and alcohols.
authors.affiliation: Department of Organic Chemistry, Faculty of Sciences, Vrije Universiteit, De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands.
authors.forename: Mark L G
authors.initials: ML
authors.lastname: Borst
authors.forename: Rosa E
authors.initials: RE
authors.lastname: Bulo
authors.forename: Christiaan W
authors.initials: CW
authors.lastname: Winkel
authors.forename: Danièle J
authors.initials: DJ
authors.lastname: Gibney
authors.forename: Andreas W
authors.initials: AW
authors.lastname: Ehlers
authors.forename: Marius
authors.initials: M
authors.lastname: Schakel
authors.forename: Martin
authors.initials: M
authors.lastname: Lutz
authors.forename: Anthony L
authors.initials: AL
authors.lastname: Spek
authors.forename: Koop
authors.initials: K
authors.lastname: Lammertsma