B−B Cleavage and Ring‐Expansion of a 1,4,2,3‐Diazadiborinine with N‐Heterocyclic Carbenes
Abstract: A 1,4,2,3‐diazadiborinine derivative was found to form Lewis adducts with strong two‐electron donors such as N‐heterocyclic and cyclic (alkyl)(amino) carbenes. Depending on the donor, some of these Lewis pairs are thermally unstable, converting to sole B,N‐embedded products upon gentle heating. The products of these reactions, which have been fully characterized by NMR spectroscopy, elemental analysis, and single‐crystal X‐ray diffraction, were identified as B,N‐heterocycles with fused 1,5,2,4‐diazadiborepine and 1,4,2‐diazaborinine rings. Computational modelling of the reaction mechanism provides insight into the formation of these unique structures, suggesting that a series of B−H, C−N, and B−B bond activation steps are responsible for these “intercalation” reactions between the 1,4,2,3‐diazadiborinine and NHCs.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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B−B Cleavage and Ring‐Expansion of a 1,4,2,3‐Diazadiborinine with N‐Heterocyclic Carbenes ; volume:25 ; number:59 ; year:2019 ; pages:13572-13578 ; extent:7
Chemistry - a European journal ; 25, Heft 59 (2019), 13572-13578 (gesamt 7)
- Urheber
- DOI
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10.1002/chem.201903259
- URN
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urn:nbn:de:101:1-2022071408053232914743
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:33 MESZ
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Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Thiess, Torsten
- Mellerup, Soren K.
- Braunschweig, Holger
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