Highly N2‐Regioselective TsOH‐Catalyzed Olefin Hydroamination: Metal‐Free Synthesis of N2‐Alkyl‐1,2,3‐triazoles

Abstract A highly N 2 ‐regioselective functionalization of 2 H ‐1,2,3‐triazole and 1 H ‐1,2,3‐triazole was achieved via a para ‐toluenesulfonic‐acid‐catalyzed olefin hydroamination. The reaction afforded the corresponding products with up to 92 % N 2 regioselectivity.