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oe1(光电查) - 科学论文

2 条数据
?? 中文（中国） ▾

  • Coumarin-1,2,3-triazole hybrid derivatives: Green synthesis and DFT calculations

    摘要： A series of new 1,2,3-triazole-coumarin hybrid system are synthesized from the click reaction between 3-azido coumarin and different aromatic terminal alkyne derivatives in a green manner. All compounds are characterized by IR, NMR and UV–VIS spectroscopy. The experimental observations are further supported by DFT computational studies to investigate the effect of substituents at para position in these compounds.

    关键词： CuAAC,1,2,3-Triazole,DFT calculation,Green synthesis,copper (I) catalyst

    更新于2025-09-23 15:22:29

  • Synthesis of graphene quantum dots stabilized CuNPs and their applications in CuAAC reaction and 4-nitrophenol reduction

    摘要： Here we report the synthesis of graphene quantum dots (GQDs) stabilized copper nanoparticles in neat water. Construction of six CuNPs 1-6 nanocomposites are accomplished by mixing GQDs and NaBH4, and followed by the addition of different amounts of copper sulfate at 0 ℃ in water, respectively. Among them, CuNP-3, with the size of 2.6 nm, exhibits excellent catalytic performance in the CuAAC reaction over than other CuNPs. Moreover, the CuNP-3 has also been successfully applied for the reduction of 4-nitrophenol with excellent catalytic activity.

    关键词： 4-Nitrophenol reduction,Copper nanoparticles,CuAAC reaction,Graphene quantum dots

    更新于2025-09-19 17:13:59