Diborane(4) Azides: Surprisingly Stable Sources of Transient Iminoboranes.

azides boron nitride diazadiboretidine diborane(4) nitrenes

Journal

Angewandte Chemie (International ed. in English)
ISSN: 1521-3773
Titre abrégé: Angew Chem Int Ed Engl
Pays: Germany
ID NLM: 0370543

Informations de publication

Date de publication:
01 Sep 2020
Historique:
received: 28 02 2020
revised: 06 04 2020
pubmed: 10 4 2020
medline: 10 4 2020
entrez: 10 4 2020
Statut: ppublish

Résumé

Herein we describe the first examples of isolable electron-precise diboranes(4) that bear azide moieties: the acyclic 1,2-diazido-1,2-bis(dimethylamino)diborane(4) and the cyclic 1,4-diaryl-2,3-diazido-1,4-diaza-2,3-diborinines (aryl=mesityl, 2,6-xylyl, 4-tolyl). The reported examples are not only stable enough to be observed and isolated (putative transient diborane(4) azides previously reported by our group spontaneously decompose even below room temperature), but some of them are even robust enough to undergo controlled pyrolysis without explosive decomposition at temperatures well above 100 °C. In two cases, the controlled pyrolysis allows the isolation of complex diazaboretidines, which are the apparent dimerization products of endocyclic boryl-iminoboranes.

Identifiants

pubmed: 32270577
doi: 10.1002/anie.202003050
pmc: PMC7497274
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

15480-15486

Subventions

Organisme : Deutsche Forschungsgemeinschaft
Organisme : Alexander von Humboldt-Stiftung
Organisme : Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Informations de copyright

© 2020 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.

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Auteurs

Torsten Thiess (T)

Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.

Guillaume Bélanger-Chabot (G)

Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.
Département de Chimie, Université Laval, 1045 Avenue de la Médecine, Québec, G1V 0A6, Canada.

Felipe Fantuzzi (F)

Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.
Institute for Physical and Theoretical Chemistry, Julius-Maximilians-Universität Würzburg, Emil-Fischer-Straße 42, 97074, Würzburg, Germany.

Maximilian Michel (M)

Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.

Moritz Ernst (M)

Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.

Bernd Engels (B)

Institute for Physical and Theoretical Chemistry, Julius-Maximilians-Universität Würzburg, Emil-Fischer-Straße 42, 97074, Würzburg, Germany.

Holger Braunschweig (H)

Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.

Classifications MeSH