N2‐Selective Autocatalytic Ditriazolylation Reactions of Cyclopropenones and Tropone with N1‐Sulfonyl‐1,2,3‐triazoles

N2-selective autocatalytic ditriazolylation reactions of cyclopropenones and tropone with N1-sulfonyl-1,2,3-triazoles were reported for the first time. In contrast to previous methods for preparing N2-substituted bis(1,2,3-triazolyl) compounds, the reaction achieved ditriazolylation in one step under simple and user-friendly conditions with a wide range of substrate scope. A plausible mechanism has been proposed relying on preliminary mechanistic investigations.