Volume 40, Issue 14 pp. 1687-1692
Concise Report

Electrochemical Synthesis of Sulfonyl Fluorides with Triethylamine Hydrofluoride

Lei Zhang

Lei Zhang

State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071 China

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Xu Cheng

Corresponding Author

Xu Cheng

Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, National Demon-stration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210023 China

E-mail: [email protected]; [email protected]Search for more papers by this author
Qi-Lin Zhou

Corresponding Author

Qi-Lin Zhou

State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071 China

E-mail: [email protected]; [email protected]Search for more papers by this author
First published: 16 April 2022
Citations: 13

Comprehensive Summary

Hydrofluoride is an industry-preferred fluoride source, and finds extensively application to manufacture diverse fluoro chemicals. The Et3N-3HF complex is a liquid HF with improve safety. In this work, we report electrochemical synthesis of a series of sulfonyl fluoride with Et3N-3HF as fluoride source. The sulfinic salt is a smell-less, non-volatile, and air-stable sulfur source in this reaction. With the combination of Et3N-3HF and aryl/alkyl sulfinic salt, the sulfonyl fluorides are achieved without the use of external oxidant. In addition, we demonstrate further advantage in a tandem reaction involving Pd-catalyzed C—S cross-coupling and formation of S—F bond. A variety of functional groups including amino acids, heterocycles, halides are well tolerated.image

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