Synlett 2017; 28(13): 1558-1563
DOI: 10.1055/s-0036-1588728
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© Georg Thieme Verlag Stuttgart · New York

Photoinduced Oxidative Cross-Coupling for O–S Bond Formation: A Facile Synthesis of Alkyl Benzenesulfonates

Atul K. Singh
a   College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, P. R. of China
,
Hong Yi
a   College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, P. R. of China
,
Guoting Zhang
a   College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, P. R. of China
,
Changliang Bian
a   College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, P. R. of China
,
Pengkun Pei
a   College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, P. R. of China
,
Aiwen Lei*
a   College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, P. R. of China
b   National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. of China   Email: aiwenlei@whu.edu.cn
› Author Affiliations
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Publication History

Received: 10 January 2017

Accepted after revision: 30 January 2017

Publication Date:
28 February 2017 (online)


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Abstract

We have developed a photoinduced oxidative cross-coupling of thiophenols with alcohols for O–S bond formation. The protocol uses visible light, a metal-free photocatalyst, and oxygen as the oxidant for the selective synthesis of alkyl benzenesulfonates; no ligand co-additive is necessary. Mechanistic studies suggested that the disulfide and alkyl benzenesulfinate are involved as intermediates and that the transformation proceeds by a radical pathway.

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