[3+2] Cycloaddition of an Azomethyne Ylide and Vinyl Sulfonyl Fluorides ― an Approach to Pyrrolidine-3-sulfonyl Fluorides
作者:Volodymyr L. Mykhalchuk、Vladimir S. Yarmolchuk、Roman O. Doroschuk、Andrey A. Tolmachev、Oleksandr O. Grygorenko
DOI:10.1002/ejoc.201800521
日期:2018.6.15
[3+2] Cycloaddition reactions of various vinyl sulfonyl fluorides with an unsubstituted azomethine ylide result in the formation of pyrrolidine‐3‐sulfonyl fluorides. The method is scalable, and the products are suitable building blocks for sulfur(VI)–fluoride exchange (SuFEx), which has been referred to as another click reaction.