Zhu Li, Niu Xiyu, Yao Xiaoquan
Department of Chemistry, School of Pharmacy, Nanjing Medical University Nanjing 211166 P. R. China
Department of Applied Chemistry, School of Material Science and Technology, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China
RSC Adv. 2025 Mar 17;15(11):8315-8320. doi: 10.1039/d4ra07724e.
A novel cuprous oxide carbon nitrogen composite material, CuO/CN, was designed and successfully synthesized. This nanocomposite exhibited superior catalytic performance in the selective oxidation of benzyl ethers to benzoates. Remarkably, the catalytic reaction proceeded efficiently at room temperature in an acetone solution, achieving good to excellent yields for various substrates. Notably, only 1.5 equivalents of TBHP were necessary for this reaction, which is below the stoichiometric requirement. Mechanistic studies revealed that oxygen in air collaborates with TBHP as a co-oxidant. Compared to prior research, the oxidation of benzyl ethers catalyzed by CuO/CN offers not only a lower reaction temperature and simpler procedure but also a significant reduction in the required amount of TBHP.
设计并成功合成了一种新型的氧化亚铜碳氮复合材料CuO/CN。这种纳米复合材料在苄基醚选择性氧化为苯甲酸酯的反应中表现出优异的催化性能。值得注意的是，催化反应在室温下于丙酮溶液中高效进行，各种底物的产率良好至优异。特别地，该反应仅需1.5当量的叔丁基过氧化氢，低于化学计量要求。机理研究表明，空气中的氧气与叔丁基过氧化氢协同作为共氧化剂。与先前的研究相比，CuO/CN催化的苄基醚氧化反应不仅反应温度更低、步骤更简单，而且所需的叔丁基过氧化氢量也显著减少。
