Synthesis
DOI: 10.1055/a-2457-0229
short review
Boryl Radical Chemistry

Advances in the Light-Promoted Transformations of N-Heterocyclic Carbene Ligated Boryl Radicals

Yang Xie
,
Jun Xuan
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



Publication History

Received: 05 September 2024

Accepted after revision: 29 October 2024

Accepted Manuscript online:
29 October 2024

Article published online:
02 December 2024

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