An Efficient One-pot Three-component Reaction to Produce 1,4-Disubstituted-1,2,3-triazoles Catalyzed by a Dicopper-substituted Silicotungstate

The dicopper-substituted gamma-Keggin silicotungstate with bis-mu-1-1-azido ligands TBA(4)H(2)[gamma-SiW10O36Cu2(mu-1,1-N-3)(2)] (TBA = tetrabutylammonium) could act as an effective homogeneous precatalyst for the one-pot synthesis of various kinds of 1,4-disubstituted-1,2,3-triazole derivatives from organic halides, NaN3, and alkynes.