vvComplexation of copper ion-containing immobilized ionic liquid in designed hierarchical-functionalized layered double hydroxide nanoreactor for azide–alkyne cycloaddition reaction

Abstract A novel nanoreactor containing Cu (II) ions which are well distributed throughout the ionic liquid-based designed layered double hydroxide is applied for azide–alkyne cycloaddition reaction. The synthesized nanocatalyst was fully characterized by thermogravimetry analysis, scanning electron microscopy, X-ray powder diffraction, Fourier transform infrared spectroscopy and Brunauer–Emmett–Teller analysis. The high surface area and the appropriate pore size of the synthesized-nanocatalyst make metal active centers accessible. On the other hand, the presence of ionic liquid in the inner layer of designed hierarchical-functionalized layered double hydroxide nanostructure creates a good environment for the leaching protection and stabilization of extremely dispersed copper ion-containing that results in good reusable features of the nanocatalyst for the synthesis of 1,4-disubstituted-1,2,3-triazole derivatives with excellent yields (75–96%) through an azide-alkyne [3 + 2] cycloaddition reaction.