In 2022,Xiao, Yan; Pu, Xiangling; Lu, Fuqing; Wang, Yanmin; Xu, Yongnan; Zhang, Hui; Liu, Yajun published an article in Arabian Journal of Chemistry. The title of the article was 《L-cysteine as sustainable and effective sulfur source in the synthesis of diaryl sulfides and heteroarenethiols》.Quality Control of 4-Iodopyridine The author mentioned the following in the article:
L-cysteine, a natural and essential amino acid, was employed as novel sulfur source in the synthesis of sym. diaryl sulfides from a variety of aryl iodides in moderate to excellent yields. A tandem three steps reactions including C(sp2)-S bond formation, C(sp3)-S bond cleavage and another C(sp2)-S bond formation were proposed to be involved in this conversion. This protocol was featured by broad substrate scope and good functional group tolerance. In addition, heteroarenes including benzothiazoles and benzoxazoles were successfully converted into the corresponding heteroarenethiols using L-cysteine as C-H mercaptalization reagent. After reading the article, we found that the author used 4-Iodopyridine(cas: 15854-87-2Quality Control of 4-Iodopyridine)
4-Iodopyridine(cas: 15854-87-2) belongs to pyridine. In industry and in the lab, pyridine is used as a reaction solvent, particularly when its basicity is useful, and as a starting material for synthesizing some herbicides, fungicides, and antiseptics.Quality Control of 4-Iodopyridine
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com