Base-Promoted Synthesis of <i>N</i>‑Substituted 1,2,3-Triazoles via Enaminone–Azide Cycloaddition Involving Regitz Diazo Transfer

Abstract

The domino reactions between NH-based secondary enaminones and tosyl azide have been developed for the synthesis of various <i>N</i>-substituted 1,2,3-triazoles by employing <i>t</i>-BuONa as the base promoter. Through a key Regitz diazo-transfer process with tosyl azide, the reactions proceed efficiently at room temperature with good substrate tolerance