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Platinum-Templated Coupling of B=N Units: Synthesis of BNBN Analogues of 1,3-Dienes and a Butatriene

Brunecker, Carina, Arrowsmith, Merle, Fantuzzi, Felipe, Braunschweig, Holger (2021) Platinum-Templated Coupling of B=N Units: Synthesis of BNBN Analogues of 1,3-Dienes and a Butatriene. Angewandte Chemie International Edition, 60 (31). pp. 16864-16868. ISSN 1433-7851. E-ISSN 1521-3773. (doi:10.1002/anie.202106161) (KAR id:96284)

Abstract

The 1:2 reaction of [μ-(dmpm)Pt(nbe)]2 (dmpm=bis(dimethylphosphino)methane, nbe=norbornene) with Cl2BNR(SiMe3) (R=tBu, SiMe3) yields unsymmetrical (N-aminoboryl)aminoboryl PtI2 complexes by B−N coupling via ClSiMe3 elimination. A subsequent intramolecular ClSiMe3 elimination from the tBu-derivative leads to cyclization of the BNBN unit, forming a unique 1,3,2,4-diazadiboretidin-2-yl ligand. In contrast, the analogous reaction with Br2BN(SiMe3)2 leads, via a twofold BrSiMe3 elimination, to a PtII2 A-frame complex bridged by a linear BNBN isostere of butatriene. Structural and computational data confirm π electron delocalization over the entire BNBN unit.

Item Type: Article
DOI/Identification number: 10.1002/anie.202106161
Subjects: Q Science > QD Chemistry
Divisions: Divisions > Division of Natural Sciences > Chemistry and Forensics
Depositing User: Felipe Fantuzzi
Date Deposited: 18 Aug 2022 08:31 UTC
Last Modified: 19 Aug 2022 08:38 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/96284 (The current URI for this page, for reference purposes)

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