In 2019,New Journal of Chemistry included an article by Li, Ze-Lin; Wu, Peng-Yu; Cai, Chun. COA of Formula: C4H4INO2. The article was titled 《Nickel-catalyzed regioselective C-H halogenation of electron-deficient arenes》. The information in the text is summarized as follows:
A straightforward Ni(II)-catalyzed general strategy was developed for the ortho-halogenation of electron-deficient arenes such as benzamide, benzenesulfonamide, Me benzoate, etc. with easily available halogenating reagents N-halosuccinimides (NXS; X = Br, Cl and I). The transformation was highly regioselective and a wide substrate scope and functional group tolerance were observed This discovery could be of great significance for the selective halogenation of amides, benzoic esters and other substances with guiding groups. Mechanistic investigations were also described. The experimental process involved the reaction of 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1COA of Formula: C4H4INO2)
1-Iodopyrrolidine-2,5-dione(cas: 516-12-1) is used in the preparation of vinyl sulfones from olefins and benzenesulfinic acid. It acts as a source for I+ and involved in Hunsdiecker reactions for the conversion of cinnamic acids, and propiolic acids to the corresponding alfa-halostyrenes and 1-halo-1-alkynes respectively. COA of Formula: C4H4INO2
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com