The dicopper-substituted ホウ-Keggin silicotungstate with bis-ホシ-1,1-azido ligands TBA4H2[ホウ-SiW10O36Cu2(ホシ-1,1-N3)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 derivs. from org. halides, NaN3, and alkynes. [on SciFinder(R)]