Wheel-shaped copper containing polyoxotungstate as an efficient catalyst in the three-component synthesis of 1,2,3-triazoles

The catalytic effect of wheel-shaped polyoxotungstate [Cu₂₀Cl(OH)₂₄(H₂O)₁₂(P₈W₄₈O₁₈₄)]²⁵⁻ was investigated in the preparation of triazoles from the corresponding alkyl halides, sodium azide, and alkynes.