A Tunable Route to Oxidative and Eliminative [3 + 2] Cycloadditions of Organic Azides with Nitroolefins: CuO Nanoparticles Catalyzed Synthesis of 1,2,3‐Triazoles under Solvent‐Free Condition.

Abstract A regioselective and tunable synthesis of 1,5-disubstituted 1,2,3-triazloles from oxidative and eliminative [3+2] cycloadditions of nitroolefins and organic azides under solvent-free condition in the presence and absence of commercially available CuO nanoparticle catalyst is described. In the presence of the catalyst under solvent-free condition, nitro group is retained in the product while it gets eliminated in the absence of the catalyst.