Cycloaddition of N-sulfonyl and N-sulfamoyl azides with alkynes in aqueous media for the selective synthesis of 1,2,3-triazoles

The cycloaddition of N -sulfonyl and sulfamoylazides with terminal alkynes using a prolinamide ligand selectively provides 1,2,3-triazoles in aqueous media in the presence of CuI.