321704-27-2Relevant articles and documents
Cobalt-Catalyzed 1,4-Aryl Migration/Desulfonylation Cascade: Synthesis of α-Aryl Amides
Gillaizeau-Simonian, Nicolas,Barde, Etienne,Guérinot, Amandine,Cossy, Janine
supporting information, p. 4004 - 4008 (2021/02/11)
A cobalt-catalyzed 1,4-aryl migration/disulfonylation cascade applied to α-bromo N-sulfonyl amides was developed. The reaction was highly chemoselective, allowing the preparation of α-aryl amides possessing a variety of functional groups. The method was used as the key step to synthesize an alkaloid, (±)-deoxyeseroline. Mechanistic investigations suggest a radical process.
Diastereoselective synthesis of 1,3-disubstituted isoindolines and sultams via bronsted acid catalysis
Tao, Ye,Gilbertson, Scott R.
supporting information, p. 11292 - 11295 (2018/10/26)
The bis(trifluoromethane)sulfonimide (Tf2NH) catalyzed intramolecular hydroamidation of terminal alkynes is reported. The combination of Et3SiH and Tf2NH provides cis-1,3-disubstituted isoindolines and sultams in high yield (up to 98%) and high diastereoselectivity (up to 99?:?1 d.r.).
Metal-free direct construction of sulfonamides via iodine- mediated coupling reaction of sodium sulfinates and amines at room temperature
Wei, Wei,Liu, Chunli,Yang, Daoshan,Wen, Jiangwei,You, Jinmao,Wang, Hua
supporting information, p. 987 - 992 (2015/03/30)
A simple, practical, and metal-free protocol has been developed for the synthesis of sulfonamides from sodium sulfinates and various amines through an iodine-mediated SN bond formation reaction at room temperature. This green reaction is cost-effective, operationally straightforward, and especially proceeds under very mild conditions to afford the target products in good to excellent yields (up to 98%).