Xie, Wenjiao; Ma, Pengju; Zhang, Yujun; Xi, Longyi; Qiu, Shengqi; Huang, Xuan; Yang, Bo; Gao, Yuan; Zhang, Junmin published an article in 2022. The article was titled 《Visible Light-Induced Highly Regioselective and Stereoselective Oxysulfonylation of Alkynes for the Synthesis of (E)-β-Phenoxy Vinylsulfones》, and you may find the article in Organic Letters.SDS of cas: 16629-19-9 The information in the text is summarized as follows:
A highly efficient visible light-induced regioselective and stereoselective oxysulfonylation of alkynes with arylsulfonate phenol esters was developed. This photocatalyst- and metal-free method proceeded smoothly under very mild conditions and exhibits a broad substrate scope, providing (E)-β-phenoxy vinylsulfones in moderate to excellent yields. Mechanistic studies indicated the involvement of an electron donor-acceptor complex-mediated radical process. The results came from multiple reactions, including the reaction of Thiophene-2-sulfonyl chloride(cas: 16629-19-9SDS of cas: 16629-19-9)
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. SDS of cas: 16629-19-9
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics