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Visible-light-mediated direct C3-arylation of 2H-indazoles enabled by an electron-donor–acceptor complex

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Abstract

A mild visible-light-mediated, photocatalyst-free arylation of 2H-indazoles was developed. The formation of an electron donor–acceptor complex by 2H-indazoles and aryl diazonium salts in the presence of pyridine allows the direct arylation of 2H-indazoles under visible-light irradiation. This process provides an efficient route for the synthesis of C3-arylated-2H-indazoles, which are important scaffolds of various bioactive compounds.

Graphical abstract: Visible-light-mediated direct C3-arylation of 2H-indazoles enabled by an electron-donor–acceptor complex

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Publication details

The article was received on 24 Sep 2019, accepted on 01 Nov 2019 and first published on 01 Nov 2019


Article type: Communication
DOI: 10.1039/C9OB02074H
Org. Biomol. Chem., 2019, Advance Article

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    Visible-light-mediated direct C3-arylation of 2H-indazoles enabled by an electron-donor–acceptor complex

    K. C. C. Aganda, J. Kim and A. Lee, Org. Biomol. Chem., 2019, Advance Article , DOI: 10.1039/C9OB02074H

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