Melamine-supported CuO nanoparticles (M-CuO nanocatalyst) are prepared as a new and efficient recyclable nanocatalyst for the regioselective synthesis of 1,2,3-triazoles in water. This new nanocatalyst was prepared by co-precipitation method and characterized by FT-IR spectral study, TGA, DSC, XRF, ICP-OES, XRD, SEM, EDS and BET analysis. A wide range of 1,4-disubstituted-1,2,3-triazoles were synthesized from reaction of benzyl halides or alkyl halides with phenyl acetylene and sodium azide in high yields. M-CuO nanocatalyst could be reused more than 6 times without considerable loss of its initial activity.

中文翻译：

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由三聚氰胺负载的CuO纳米颗粒催化的1,4-二取代-1,2,3-三唑的点击合成

制备了三聚氰胺负载的CuO纳米颗粒（M-CuO纳米催化剂）作为一种新的高效可循环使用的纳米催化剂，用于在水中区域选择性合成1,2,3-三唑。该新型纳米催化剂是通过共沉淀法制备的，并通过FT-IR光谱研究，TGA，DSC，XRF，ICP-OES，XRD，SEM，EDS和BET分析进行了表征。通过苄基卤或烷基卤与苯基乙炔和叠氮化钠的高产率反应，合成了多种1,4-二取代-1,2,3-三唑。M-CuO纳米催化剂可以重复使用6次以上，而不会损失其初始活性。