Herein, we report the preparation of CuO@ borophosphate nanoparticles (CuOnano@glass) and their wide catalytic applications. The glass annealing, under a controlled atmosphere, enables the growth of copper nanoparticles on the glass surface (not within) by an uncommon bottom-up process. Following the thermal annealing of metallic nanoparticles under air atmosphere, supported copper oxide nanoparticles CuONPs on the glass surface can be obtained. The approach enables the glass matrix to be explored as a precursor and a route for the synthesis of supported copper-based nanoparticles in a solvent-free process without immobilization steps or stabilizing agents. In order to demonstrate the wide synthetic utility of this CuONPs glass-based catalyst, one-pot three-component domino reactions were performed under an air atmosphere, affording the desired selenylated oxadiazoles in good to excellent yields. We also extended the application of these new materials as a glass-based catalyst in the phenol hydroxylation and the reduction of 4-nitrophenol.

在此，我们报告了 CuO@ 硼磷酸盐纳米颗粒（CuOnano@glass）的制备及其广泛的催化应用。在受控气氛下进行玻璃退火，通过不常见的自下而上过程，使铜纳米颗粒能够在玻璃表面（而不是内部）生长。在空气气氛下对金属纳米颗粒进行热退火后，可以获得玻璃表面负载的氧化铜纳米颗粒CuONPs。该方法使得玻璃基质能够作为前体进行探索，并成为在无溶剂过程中合成负载型铜基纳米颗粒的途径，无需固定步骤或稳定剂。为了证明这种 CuONPs 玻璃基催化剂的广泛合成用途，在空气气氛下进行一锅三组分多米诺骨牌反应，以良好至优异的收率提供了所需的硒化恶二唑。我们还扩展了这些新材料作为玻璃基催化剂在苯酚羟基化和4-硝基苯酚还原中的应用。