Issue 18, 2023

Visible light induced boryl radical and its application in reduction of unsaturated X[double bond, length as m-dash]O (X = C, N, S) bonds

Abstract

Studies on photoinduced radical reactions have recently flourished. Many strategies have been discovered for radical generation and application in the radical initiated reactions with visible light and without transition metals and organic dyes. A boryl radical is generated by light illumination from 4-cyanopyridine and B2cat2 and confirmed by transient absorption (TA) spectroscopy and density functional theory (DFT) studies. The electron donor–acceptor (EDA) complex formed with these two molecules can be excited by visible light and photocleavage of the B–B bond is induced, thus yielding a boryl radical with a long lifetime in aqueous solution. This kind of radical plays a very important role in visible light induced reduction of compounds with an unsaturated double bond X=O (X = C, N, S). A series of neat, fast, and efficient reactions have been well developed as notable methodologies in organic synthesis.

Graphical abstract: Visible light induced boryl radical and its application in reduction of unsaturated X [[double bond, length as m-dash]] O (X = C, N, S) bonds

Supplementary files

Article information

Article type
Research Article
Submitted
12 jun 2023
Accepted
03 ago 2023
First published
03 ago 2023

Org. Chem. Front., 2023,10, 4623-4630

Visible light induced boryl radical and its application in reduction of unsaturated X[double bond, length as m-dash]O (X = C, N, S) bonds

L. Yin, G. Huang, X. Lin, X. Song, Y. Chen, T. Yan, M. Li and L. Dang, Org. Chem. Front., 2023, 10, 4623 DOI: 10.1039/D3QO00808H

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