Recent Functionalizations of Primary Sulfonamides

Abstract

Sulfonamides are common building blocks in organic synthesis. They have a wide range of medical applications. This review aims to delineate recent efforts towards the functionalization of primary sulfonamides during last three years and to provide an overview of the synthesis of <i>N</i>-alkylated, <i>N</i>-acylated, and <i>N</i>-arylated sulfonamides from primary sulfonamides. Among other reactions, the sulfonamide-directed C–H functionalization is highlighted. 1 Application of Sulfonamides 2 Synthesis of <i>N</i>-Alkylated Sulfonamides 3 Synthesis of <i>N</i>-Acylated Sulfonamides 4 Synthesis of <i>N</i>-Arylated Sulfonamides 5 Other Chemistry 6 Summary and Perspective