title: A facile and selective route to remarkably inert monocyclic NHC-stabilized boriranes.
abstract: Herein we report a facile and selective synthetic route to monocyclic NHC-stabilized boriranes. We have succeeded in obtaining two highly stable new boriranes through salt elimination of NHC-stabilized dichloroboranes with the dianion of trans-stilbene, Na2[C14H12]. One borirane was observed to undergo reaction with [Pt(PEt3)3], in which the Pt(0) center oxidatively adds a backbone C-H bond of the NHC, leading to the isolation of the Pt(II) complex trans-[(Et3P)2PtH{C=CH(NMe)2C·BPh(C14H12)}]. The remarkable inertness of the NHC-boriranes suggests a strong stabilising effect of quaternization of the boron atom.
authors.affiliation: Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany. h.braunschweig@uni-wuerzburg.de.
authors.forename: Holger
authors.initials: H
authors.lastname: Braunschweig
authors.forename: Christina
authors.initials: C
authors.lastname: Claes
authors.forename: Alexander
authors.initials: A
authors.lastname: Damme
authors.forename: Andrea
authors.initials: A
authors.lastname: Deissenberger
authors.forename: Rian D
authors.initials: RD
authors.lastname: Dewhurst
authors.forename: Christian
authors.initials: C
authors.lastname: Hörl
authors.forename: Thomas
authors.initials: T
authors.lastname: Kramer