Issue 34, 2023

Copper-catalyzed umpolung Sonogashira-type coupling of arene boronic acids under visible light

Abstract

We report herein that a copper catalyst catalyzed efficient cross-coupling of aryl and alkenyl boronic acids with alkynyl-1,2-benziodoxol-3(1H)-ones to afford diaryl alkynes and enynes under mild visible light irradiation conditions using a catalytic amount of base or even in the absence of base. The reaction applies copper as the catalyst and tolerates a variety of functional moieties including aryl bromide and iodide.

Graphical abstract: Copper-catalyzed umpolung Sonogashira-type coupling of arene boronic acids under visible light

Supplementary files

Article information

Article type
Communication
Submitted
14 Feb 2023
Accepted
23 Mar 2023
First published
24 Mar 2023

Chem. Commun., 2023,59, 5043-5046

Copper-catalyzed umpolung Sonogashira-type coupling of arene boronic acids under visible light

J. Ma, Q. Wang, Y. Sun, E. Zhu, X. Li, H. Tan, G. Chen and C. Zheng, Chem. Commun., 2023, 59, 5043 DOI: 10.1039/D3CC00682D

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