Convenient and Environment-Friendly Synthesis of Sulfonyl Chlorides from S-Alkylisothiourea Salts via N-Chlorosuccinimide Chlorosulfonation
Zhanhui Yang, Jiaxi Xu*
*State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing 100029, P. R. of China, Email: jxxumail.buct.edu.cn
Z. Yang, J. Xu, Synthesis, 2013, 45, 1675-1682.
DOI: 10.1055/s-0033-1338743 (free Supporting Information)
Structurally diverse sulfonyl chlorides were synthesized via N-chlorosuccinimide chlorosulfonation in good yields from S-alkylisothiourea salts, which can be easily prepared from readily accessible alkyl halides or mesylates and inexpensive thiourea. In large-scale syntheses, the water-soluble byproduct succinimide can be conveniently converted into the starting reagent N-chlorosuccinimide with sodium hypochlorite.
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Z. Yang, B. Zhou, J. Xu, Synthesis, 2014, 46, 225-229.
Z. Yang, Y. Zheng, J. Xu, Synlett, 2013, 24, 2165-2169.