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Direct C–H sulfenylation of quinoxalinones with thiols under visible-light-induced photocatalyst-free conditions

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Abstract

A photocatalyst-free visible-light-promoted sulfenylation of quinoxalinones with thiols via cross-dehydrogenative coupling was developed. This protocol allowed the direct formation of diverse 3-sulfenylquinoxalin-2(1H)-ones under metal- and catalyst-free conditions and using air (O2) as an oxidant. Furthermore, a range of readily accessible thiols and quinoxalin-2(1H)-ones was applied in this coupling, resulting in an attractive process of accessing 3-substituted quinoxalinones.

Graphical abstract: Direct C–H sulfenylation of quinoxalinones with thiols under visible-light-induced photocatalyst-free conditions

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Publication details

The article was received on 29 Aug 2019, accepted on 22 Oct 2019 and first published on 22 Oct 2019


Article type: Communication
DOI: 10.1039/C9GC03045J
Green Chem., 2019, Advance Article

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    Direct C–H sulfenylation of quinoxalinones with thiols under visible-light-induced photocatalyst-free conditions

    Q. Teng, Y. Yao, W. Wei, H. Tang, J. Li and Y. Pan, Green Chem., 2019, Advance Article , DOI: 10.1039/C9GC03045J

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