title: An Ethylene-Bridged Phosphane/Borane Frustrated Lewis Pair Featuring the -B(Fxyl)2 Lewis Acid Component.
abstract: Hydroboration of dimesitylvinylphosphane with bis[3,5-bis(trifluoromethyl)phenyl]borane [HB(Fxyl)2 ] gave the intramolecular ethylene-bridged P/B frustrated Lewis pair (FLP) Mes2 PCH2 CH2 B(Fxyl)2 . The new compound underwent a variety of typical FLP reactions such as P/B-addition to the carbonyl group of p-chloro-benzaldehyde. Cooperative N,N-addition to nitric oxide gave the respective persistent P/B FLPNO(.) radical, which readily reacted with 1,4-cyclohexadiene by H-atom abstraction to yield the corresponding P/B FLPNOH product. The B(Fxyl)2 -containing FLP reacted as a template for the HB(C6 F5 )2 reduction of carbon monoxide to the formyl stage to give the respective FLP(η(2) -formylborane) product. Most products were characterized by single-crystal X-ray crystal structure analysis.
authors.affiliation: Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany.
authors.forename: Long
authors.initials: L
authors.lastname: Wang
authors.affiliation: Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Straße 7, 60438, Frankfurt (Main), Germany.
authors.forename: Kamil
authors.initials: K
authors.lastname: Samigullin
authors.affiliation: Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Straße 7, 60438, Frankfurt (Main), Germany.
authors.forename: Matthias
authors.initials: M
authors.lastname: Wagner
authors.affiliation: Department of Chemistry, Georgetown University, Box 571557, Washington DC, 20057-1227, USA.
authors.forename: Alison C
authors.initials: AC
authors.lastname: McQuilken
authors.affiliation: Department of Chemistry, Georgetown University, Box 571557, Washington DC, 20057-1227, USA.
authors.forename: Timothy H
authors.initials: TH
authors.lastname: Warren
authors.affiliation: Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany.
authors.forename: Constantin G
authors.initials: CG
authors.lastname: Daniliuc
authors.affiliation: Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany.
authors.forename: Gerald
authors.initials: G
authors.lastname: Kehr
authors.affiliation: Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany. erker@uni-muenster.de.
authors.forename: Gerhard
authors.initials: G
authors.lastname: Erker
keywords: boranes; frustrated Lewis pair; phosphorus; small molecule binding