A general synthetic route to six-membered cyclic N-aryl- and N-alkyl-substituted sulfonimidamides via an intramolecular ring closure of suitably functionalised acyclic sulfonimidamides is described. The structure of this new ring system was confirmed by various analytical methods and in one example by X-ray structural analysis.
A Palladium‐Catalyzed Regioselective [3+2] Annulation Strategy to 1,2,3‐Oxathiazolidine‐2‐oxides
作者:Qian Liang、Ganggang Bu、Hongjian Jiao、Bing Gao
DOI:10.1002/ejoc.202301153
日期:2024.3.25
Palladium-catalyzed [3+2] annulation of N-sulfinylanilines with vinylethylene carbonates and vinyl epoxides has been reported, affording the 1,2,3-oxathiazolidine-2-oxides under mild reaction conditions. Further synthetic applications of 1,2,3-oxathiazolidine-2-oxides in the preparation of sulfoxides, β-amino alcohols and amines have also been demonstrated.