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Highly Strained Heterocycles Constructed from Boron–Boron Multiple Bonds and Heavy Chalcogens

Please always quote using this URN: urn:nbn:de:bvb:20-opus-138237
  • The reactions of a diborene with elemental selenium or tellurium are shown to afford a diboraselenirane or diboratellurirane, respectively. These reactions are reminiscent of the sequestration of subvalent oxygen and nitrogen in the formation of oxiranes and aziridines; however, such reactivity is not known between alkenes and the heavy chalcogens. Although carbon is too electronegative to affect the reduction of elements with lower relative electronegativity, the highly reducing nature of the B B double bond enables reactions with Se0 and Te0.The reactions of a diborene with elemental selenium or tellurium are shown to afford a diboraselenirane or diboratellurirane, respectively. These reactions are reminiscent of the sequestration of subvalent oxygen and nitrogen in the formation of oxiranes and aziridines; however, such reactivity is not known between alkenes and the heavy chalcogens. Although carbon is too electronegative to affect the reduction of elements with lower relative electronegativity, the highly reducing nature of the B B double bond enables reactions with Se0 and Te0. The capacity of multiple bonds between boron atoms to donate electron density is highlighted in reactions where diborynes behave as nucleophiles, attacking one of the two Te atoms of diaryltellurides, forming salts consisting of diboratellurenium cations and aryltelluride anions.show moreshow less
Metadaten
Author: Holger BraunschweigORCiD, Philipp Constantinidis, Theresa Dellermann, William Ewing, Ingo Fischer, Merlin Hess, Fergus Knight, Anna Rempel, Christoph Schneider, Stefan Ullrich, Alfredo Vargas, Derek Woolins
URN:urn:nbn:de:bvb:20-opus-138237
Document Type:Journal article
Faculties:Fakultät für Chemie und Pharmazie / Institut für Anorganische Chemie
Language:English
Parent Title (German):Angewandte Chemie, International Edition
Year of Completion:2016
Volume:55
Issue:18
Pagenumber:4
Source:Angewandte Chemie, International Edition, Volume 55, Issue 18, 5606–5609, 10.1002/anie.201601691
DOI:https://doi.org/10.1002/anie.201601691
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 54 Chemie / 546 Anorganische Chemie
GND Keyword:Bor; Heterocyclische Verbindungen; Selen; Tellur
Tag:Boron; Heterocycles; Multiple bonds; Selenium; Tellurium
Release Date:2017/01/31
Note:
This is the peer reviewed version of the following article: Angew. Chem. Int. Ed. 2016, 55, 5606–5609, which has been published in final form at 10.1002/anie.201601691. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Note:
Accepted Version
First Page:5606
Last Page:5609
EU-Project number / Contract (GA) number:669054
OpenAIRE:OpenAIRE
Licence (German):License LogoDeutsches Urheberrecht