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Literature DB >> 29897648

Diboryldiborenes: π-Conjugated B₄ Chains Isoelectronic to the Butadiene Dication.

Alexander Hermann^1,2, Jessica Cid³, James D Mattock⁴, Rian D Dewhurst^1,2, Ivo Krummenacher^1,2, Alfredo Vargas⁴, Michael J Ingleson³, Holger Braunschweig^1,2.

Abstract

B(sp2 )-B(sp3 ) diborane species based on bis(catecholato)diboron and N-heterocyclic carbenes (NHCs) underwent catechol/bromide exchange selectively at the sp3 -hybridized boron atom. The reduction of the resulting 1,1-dibromodiborane adducts led to reductive coupling and isolation of doubly NHC-stabilized 1,2-diboryldiborenes. These compounds are the first examples of molecules exhibiting π-electron delocalization over an all-boron chain.

Entities: Chemical Disease Species

Keywords: N-heterocyclic carbenes; boron chains; diboranes; diborenes; π-conjugation

Year: 2018 PMID： 29897648 DOI： 10.1002/anie.201805394

Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN： 1433-7851 Impact factor: 15.336

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Cited

4 in total

1. Synthesis and hydrogenation of polycyclic aromatic hydrocarbon-substituted diborenes via uncatalysed hydrogenative B-C bond cleavage.

Authors: Alexander Okorn; Arumugam Jayaraman; Lukas Englert; Merle Arrowsmith; Theresa Swoboda; Jeanette Weigelt; Carina Brunecker; Merlin Hess; Anna Lamprecht; Carsten Lenczyk; Maximilian Rang; Holger Braunschweig
Journal: Chem Sci Date: 2022-06-14 Impact factor: 9.969

Diboryldiborenes: π-Conjugated B₄ Chains Isoelectronic to the Butadiene Dication.

1. Synthesis and hydrogenation of polycyclic aromatic hydrocarbon-substituted diborenes via uncatalysed hydrogenative B-C bond cleavage.

2. Synthesis and reduction chemistry of mixed-Lewis-base-stabilised chloroborylenes.

3. Mild synthesis of diboryldiborenes by diboration of B-B triple bonds.

4. Toward Transition-Metal-Templated Construction of Arylated B₄ Chains by Dihydroborane Dehydrocoupling.

Diboryldiborenes: π-Conjugated B4 Chains Isoelectronic to the Butadiene Dication.

1. Synthesis and hydrogenation of polycyclic aromatic hydrocarbon-substituted diborenes via uncatalysed hydrogenative B-C bond cleavage.

2. Synthesis and reduction chemistry of mixed-Lewis-base-stabilised chloroborylenes.

3. Mild synthesis of diboryldiborenes by diboration of B-B triple bonds.

4. Toward Transition-Metal-Templated Construction of Arylated B4 Chains by Dihydroborane Dehydrocoupling.

Diboryldiborenes: π-Conjugated B₄ Chains Isoelectronic to the Butadiene Dication.

4. Toward Transition-Metal-Templated Construction of Arylated B₄ Chains by Dihydroborane Dehydrocoupling.