An unsymmetrical, cyclic diborene based on a chelating CAAC ligand and its small-molecule activation and rearrangement chemistry
Zitieren Sie bitte immer diese URN: urn:nbn:de:bvb:20-opus-256576
- A one-pot synthesis of a CAAC-stabilized, unsymmetrical, cyclic diborene was achieved via consecutive two-electron reduction steps from an adduct of CAAC and B\(_2\)Br\(_4\)(SMe\(_2\))\(_2\). Theoretical studies revealed that this diborene has a considerably smaller HOMO–LUMO gap than those of reported NHC- and phosphine-supported diborenes. Complexation of the diborene with [AuCl(PCy\(_3\))] afforded two diborene–Au\(^I\) π complexes, while reaction with DurBH\(_2\), P\(_4\) and a terminal acetylene led to the cleavage of B−H, P−P, and C−CA one-pot synthesis of a CAAC-stabilized, unsymmetrical, cyclic diborene was achieved via consecutive two-electron reduction steps from an adduct of CAAC and B\(_2\)Br\(_4\)(SMe\(_2\))\(_2\). Theoretical studies revealed that this diborene has a considerably smaller HOMO–LUMO gap than those of reported NHC- and phosphine-supported diborenes. Complexation of the diborene with [AuCl(PCy\(_3\))] afforded two diborene–Au\(^I\) π complexes, while reaction with DurBH\(_2\), P\(_4\) and a terminal acetylene led to the cleavage of B−H, P−P, and C−C π bonds, respectively. Thermal rearrangement of the diborene gave an electron-rich cyclic alkylideneborane, which readily coordinated to Ag\(^I\) via its B=C double bond.…
Autor(en): | Wei LuORCiD, Arumugam JayaramanORCiD, Felipe FantuzziORCiD, Rian D. DewhurstORCiD, Marcel HärterichORCiD, Maximilian Dietz, Stephan Hagspiel, Ivo KrummenbacherORCiD, Kai Hammond, Jingjing Cui, Holger BraunschweigORCiD |
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URN: | urn:nbn:de:bvb:20-opus-256576 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Fakultät für Chemie und Pharmazie / Institut für Anorganische Chemie |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | Angewandte Chemie International Edition |
Erscheinungsjahr: | 2022 |
Band / Jahrgang: | 61 |
Heft / Ausgabe: | 3 |
Aufsatznummer: | e202113947 |
Originalveröffentlichung / Quelle: | Angewandte Chemie International Edition (2022) 61:3, e202113947. DOI: 10.1002/anie.202113947 |
DOI: | https://doi.org/10.1002/anie.202113947 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 54 Chemie / 546 Anorganische Chemie |
Freie Schlagwort(e): | alkylideneborane; carbene; diborene; inorganic chemistry; thermal rearrangement |
Datum der Freischaltung: | 25.02.2022 |
EU-Projektnummer / Contract (GA) number: | 669054 |
OpenAIRE: | OpenAIRE |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |