Eur. J. Org. Chem. 2018, (22), 2870-2876
DOI: 10.1002/ejoc.201800521
Mykhalchuk V.; Yarmolchuk V.; Doroschuk R.; Tolmachev A.; Grygorenko O.
[3+2] Cycloaddition reactions of vinyl sulfonyl fluorides with an in‐situ generated nonstabilized azomethine ylide is described for the first time. The resulting pyrrolidine‐3‐sulfonyl fluorides were obtained in 50–83 % yield on a scale of up to 25 g. Their utility as reagents for sulfur(VI)–fluoride exchange (SuFEx) and some other transformations was also demonstrated.