Hermann, Alexander, Arrowsmith, Merle, Trujillo-Gonzalez, Daniel E, Jiménez-Halla, J Oscar C, Vargas, Alfredo and Braunschweig, Holger (2020) Trapping of a borirane intermediate in the reductive coupling of an arylborane to a diborene. Journal of the American Chemical Society, 142 (12). pp. 5562-5567. ISSN 0002-7863
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Abstract
The reductive coupling of a N-heterocyclic carbene (NHC)-stabilized aryldibromoborane yields a mixture of trans- and cis-diborenes in which the aryl groups are coplanar with the diborene core. Under dilute reduction conditions two diastereomers of a borirane–borane intermediate are isolated, which upon further reduction give rise to the aforementioned diborene mixture. DFT calculations suggest a mechanism proceeding via nucleophilic attack of a dicoordinate borylene intermediate on the aryl ring and subsequent intramolecular B–B bond formation.
Item Type: | Article |
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Schools and Departments: | School of Life Sciences > Chemistry |
Subjects: | Q Science > QD Chemistry |
Depositing User: | Alfredo Vargas |
Date Deposited: | 15 Jun 2020 07:06 |
Last Modified: | 10 Mar 2021 02:00 |
URI: | http://sro.sussex.ac.uk/id/eprint/91892 |
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