Ring Expansion Strategies for the Synthesis of Medium Sized Ring and Macrocyclic Sulfonamides
作者:Zhongzhen Yang、Illya Zalessky、Ryan G. Epton、Adrian C. Whitwood、Jason M. Lynam、William P. Unsworth
DOI:10.1002/anie.202217178
日期:2023.3.20
Two ringexpansion strategies are reported for the synthesis of medium sized and macrocyclic sulfonamides. Both methods proceed without using classical protecting groups, initiated by nitro reduction and amine conjugate addition respectively, to make diversely functionalised cyclic sulfonamides in a range of ring sizes. The ring size dependency of the synthetic reactions is in good agreement with the