The electrochemical reaction of 4-ethynylaniline (4-EA) in the presence of sodium azide in buffered solutions with the various pHs (buffer solution /acetonitrile (80/20 v/v)) was investigated for the first time. Our electrochemical data assert that the product of oxidation of 4-ethynylaniline enters the chemical reaction with azide ion. In continues, after the 1,3 dipolar cycloaddition, electrochemical oxidation, dimerization, and third step electrochemical oxidation a triazole ring was produced as the desired product in a simple undivided cell and using carbon anode. The critical aim of this study was applying a non-catalytic procedure for the synthesis of triazole ring at room temperature that was successfully achieved.
