Arenesulfonyl Fluoride Synthesis via Copper-Catalyzed Fluorosulfonylation of Arenediazonium Salts was written by Liu, Yongan;Yu, Donghai;Guo, Yong;Xiao, Ji-Chang;Chen, Qing-Yun;Liu, Chao. And the article was included in Organic Letters in 2020.Application of 454-65-9 This article mentions the following:
We report herein a general and practical copper-catalyzed fluorosulfonylation reaction of a wide range of abundant arenediazonium salts to smoothly prepare various arenesulfonyl fluorides using the 1,4-diazabicyclo[2.2.2]octane-bis(sulfur dioxide) adduct as a convenient sulfonyl source in combination with KHF2 as an ideal fluorine source and without the need for addnl. oxidants. Interestingly, the electronic character of the arene ring in the starting arenediazonium salts has a significant impact on the reaction mechanistic pathway. In the experiment, the researchers used many compounds, for example, 3-Bromobenzene-1-sulfonyl fluoride (cas: 454-65-9Application of 454-65-9).
3-Bromobenzene-1-sulfonyl fluoride (cas: 454-65-9) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon–bromine bond is electrophilic in nature. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Application of 454-65-9
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary