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DOI: 10.1055/a-2457-0229
Advances in the Light-Promoted Transformations of N-Heterocyclic Carbene Ligated Boryl Radicals
We are grateful to the National Natural Science Foundation of China (21971001) and the Distinguished Young Research Project of Anhui Higher Education Institution (2023AH020003) for financial support of the work we performed in this area.

Abstract
Organoboron compounds are integral to modern life, with extensive applications in synthesis, materials science, medicine, and various other domains closely linked to human endeavors. NHC-BH3, noted for its stability, ease of synthesis, and high reactivity as a boryl radical precursor, has emerged as a key focus in boryl radical chemistry. Recently, the visible-light-induced single electron transfer (SET) and hydrogen atom transfer (HAT) processes have garnered considerable interest, presenting innovative strategies for generating boryl radicals from NHC-BH3. In the context of this review, our focus is on the synthesis of C–B and X–B bonds under visible light irradiation, facilitated by NHC-BH3. Furthermore, we explored the role of NHC-BH3 as a hydrogen donor or halogen atom transfer reagent in the construction of C–C bonds.
1 Introduction
2 Hydroboration
3 Borylation
4 Construction of X–B Bonds (X = N, O, S)
5 Halogen Atom Transfer Reagent and Hydrogen Donor
6 Conclusion
Key words
N-heterocyclic carbene boranes - photoredox catalysis - thiol catalysis - boryl radical - XAT reagentPublication History
Received: 05 September 2024
Accepted after revision: 29 October 2024
Accepted Manuscript online:
29 October 2024
Article published online:
02 December 2024
© 2024. Thieme. All rights reserved
Georg Thieme Verlag KG
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