The 5‐heterofunctionalized triazoles are important scaffolds in bioactive compounds, but current clickreactions (CuAAC) cannot produce these core structures. A copper(I)‐catalyzed interruptedclickreaction to access diverse 5‐functionalized triazoles is reported. Various 5‐amino‐, thio‐, and selenotriazoles were readily assembled in one step in high yields. The reaction proceeds under mild conditions