Abstract

In this research, a nano-inorganic composite of CuO/NiO is prepared by co-precipitation method as an efficient recyclable nanocatalyst for the regioselective synthesis of 1,4-disubstituted-1,2,3-triazoles in water. The catalyst was characterized by several techniques such as the field emission scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS), x-ray diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), x-ray fluorescence, inductively coupled plasma atomic emission spectroscopy (ICP-OES), and brunauer-emmett-teller (BET) surface area analysis. The regioselective synthesis of 1,4-disubstituted-1,2,3-triazoles was carried out from reaction of various benzyl halides or alkyl halides with phenyl acetylene and sodium azide in water under reflux condition in high yields. The CuO/NiO nanocatalyst can be simply recovered and reused 6 runs without a significant slight in activity.

摘要

在这项研究中，通过共沉淀法制备了 CuO/NiO 的纳米无机复合材料，作为一种有效的可回收纳米催化剂，用于在水中区域选择性合成 1,4-二取代-1,2,3-三唑。通过场发射扫描电子显微镜（FESEM）、能量色散谱（EDS）、X射线衍射（XRD）、透射电子显微镜（TEM）、热重分析（TGA）、X射线荧光、电感耦合等离子体原子发射光谱 (ICP-OES) 和布鲁瑙尔-埃米特-泰勒 (BET) 表面积分析。1,4-二取代-1,2,3-三唑的区域选择性合成是由各种苄基卤化物或烷基卤化物与苯乙炔和叠氮化钠在水中在回流条件下以高产率反应进行的。