Volume 38, Issue 4 pp. 361-366
Concise Report

Photoredox-Catalyzed Functionalization of Alkenes with Thiourea Dioxide: Construction of Alkyl Sulfones or Sulfonamides

Yuewen Li

Yuewen Li

School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Taizhou, Zhejiang, 318000 China

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Jin-Biao Liu

Jin-Biao Liu

School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, 341000 China

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Fu-Sheng He

Corresponding Author

Fu-Sheng He

School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Taizhou, Zhejiang, 318000 China

E-mail: [email protected]; [email protected]Search for more papers by this author
Jie Wu

Corresponding Author

Jie Wu

School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Taizhou, Zhejiang, 318000 China

State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032 China

E-mail: [email protected]; [email protected]Search for more papers by this author
First published: 17 January 2020
Citations: 37
Dedicated to the 30th Anniversary of State Key Laboratory of Organometallic Chemistry.

Summary of main observation and conclusion

Sulfonylation of alkenes through photoredox-catalyzed functionalization of alkenes with thiourea dioxide under visible-light irradiation is achieved. The reaction of alkenes, thiourea dioxide and electrophiles provides a green and efficient access to alkyl sulfones and sulfonamides. A broad reaction scope is presented with good functional group compatibility and excellent regioselectivity. A plausible mechanism involving a radical addition process with sulfur dioxide radical anion (SO2-) derived from the oxidation of sulfur dioxide anion (SO22–) is proposed, which is supported by fluorescence quenching experiments.

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