In 2022,Chen, Yasu; Wu, Xinxin; Yang, Shan; Zhu, Chen published an article in Angewandte Chemie, International Edition. The title of the article was 《Asymmetric Radical Cyclization of Alkenes by Stereospecific Homolytic Substitution of Sulfinamides》.Electric Literature of C4H3ClO2S2 The author mentioned the following in the article:
Authors report a novel asym. radical cyclization of alkenes via stereospecific homolytic substitution of sulfinamides. This reaction produces a variety of cyclic sulfinamides with excellent stereocontrol. The protocol features broad functional group tolerance, high product diversity, and easy accessibility to feedstocks, and outlines a new pathway for the synthesis of chiral cyclic sulfinamides. In the experimental materials used by the author, we found Thiophene-2-sulfonyl chloride(cas: 16629-19-9Electric Literature of C4H3ClO2S2)
Thiophene-2-sulfonyl chloride(cas: 16629-19-9) is a member of sulfonyl chlorides. Sulfonyl chlorides are reactive sulfonic acid derivatives similar in properties and reactivity to acid chlorides of carboxylates. The sulfonic acid group, however, is a highly hindered molecule, containing a tetrahedral configuration of substituents. Electric Literature of C4H3ClO2S2
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics