Anionic organoboranes: delicate flowers worth caring for
- Subvalent boron compounds contain boron atoms with oxidation numbers lower than +III. Over the last decades, the development of isolable derivatives has relied heavily on the use of specially designed ligands capable of stabilizing the electron‐rich boron centers electronically or through steric protection. Herein, we are exclusively reviewing anionic organo(hydro)boranes largely devoid of stabilizing ligands or heteroatom substituents. The restriction to these subvalent species is intended to minimize the risk of ligand artifacts being included when carving out the characteristic properties of the respective boron centers, such as nucleophilic or carbenoid behavior. The scope of this review encompasses triorganoborane radical monoanions ([·BR3]–) along with closed‐shell dianions ([:BR3]2–), boryl anions ([:BR2]–), as well as B–B single‐bonded diborane(6) dianions ([R3B–BR3]2–) and diborane(5) monoanions ([R2B–BR3]–), and finally B=B double‐bonded diborane(4) dianions ([R2B=BR2]2–). We are showing how these species are related to each other and comment on their bonding situations from an experimentalist's perspective.
Author: | Hendrik Budy, Jannik GilmerGND, Timo TrageserGND, Matthias WagnerORCiD |
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URN: | urn:nbn:de:hebis:30:3-564963 |
DOI: | https://doi.org/10.1002/ejic.202000786 |
ISSN: | 1099-0682 |
Parent Title (German): | European Journal of Inorganic Chemistry |
Publisher: | Wiley-VCH |
Place of publication: | Weinheim |
Document Type: | Article |
Language: | English |
Date of Publication (online): | 2020/09/04 |
Date of first Publication: | 2020/09/04 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2020/12/09 |
Tag: | Anionic boranes; Dynamic covalent chemistry; Organoboranes; Subvalent compounds; Umpolung |
Volume: | 2020 |
Issue: | 44 |
Page Number: | 15 |
First Page: | 4148 |
Last Page: | 4162 |
HeBIS-PPN: | 476949548 |
Institutes: | Biochemie, Chemie und Pharmazie / Biochemie und Chemie |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
Sammlungen: | Universitätspublikationen |
Licence (German): | Creative Commons - Namensnennung-Nicht kommerziell - Keine Bearbeitung 4.0 |