One‐Pot Three‐Component Click Reaction of Cyclic Sulfates and Cyclic Sulfamidates

Abstract A one‐pot, three‐component methodology involving tandem azidation and click copper(I)‐catalyzed azide‐alkyne cycloaddition (CuAAC) of cyclic sulfates or cyclic sulfamidates in the presence of sodium azides and alkynes is reported. The developed protocol takes also advantage of the concomitant use of microwave (MW) irradiation and heterogeneous catalysis. The protocol allows the fast and efficient preparation of (alkyl sulfate)‐ and (alkyl sulfamidate)‐1 H ‐1,2,3‐triazoles in a simple manner.