Iron‐Catalyzed One‐Step Synthesis of Isothiazolone/1,2‐Selenazolone Derivatives via [3+1+1] Annulation of Cyclopropenones, Anilines, and Elemental Chalcogens
作者:Hongchen Wang、Rulong Yan
DOI:10.1002/adsc.202101175
日期:2022.2.15
Described herein is the one-step synthesis of isothiazolone/1,2-selenazolone derivatives via [3+1+1] cycloaddition of cyclopropenone derivatives, anilines, and elemental chalcogens. The cascade reaction involves the C−S, C−N, and N−S bond formation along with the cleavage of C−C bond. Both anilines and cyclopropenones are tolerated and give the corresponding products in 28–73% yields.