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Copper supported silica-based nanocatalysts for CuAAC and cross-coupling reactions
Reaction Chemistry & Engineering ( IF 3.9 ) Pub Date : 2022-06-23 , DOI: 10.1039/d2re00095d
Pitchaimani Veerakumar , Nithya Velusamy , Thanasekaran Pounraj , King-Chuen Lin , Rajagopal Seenivasan

Copper nanoparticles supported on silica (CuNPs–SiO2) have been explored as sustainable catalysts for various catalytic reactions such as Huisgen 1,3-dipolar cycloaddition (click reaction), carbon-sulfur (C–S), carbon-nitrogen (C–N), and carbon–oxygen (C–O) coupling reactions. The Cu-catalyzed azide–alkyne cycloaddition (CuAAC) protocol that belongs to the family of click chemistry is one of the most reliable and widespread synthetic transformations in organic chemistry, with multidisciplinary applications. The Cu-based SiO2 nanocomposites exhibit superior catalytic activity, stability, and recyclability compared to their unsupported counterparts. Thus, it reveals the advantages and importance of designing Cu nanocomposites with desirable catalytic properties. This review discusses a better understanding of the catalytic behavior of CuNPs–SiO2 nanocatalysts than that of some commercial Cu catalysts with regard to the metal loadings, reaction time, yield of products, recycle tests, and other protocols. Furthermore, recent signs of progress in the synthesis, characterization, and industrial applications of CuNPs–SiO2 nanocatalysts are summarized and discussed along with the prospective outlook of the relevant research fields.

中文翻译:

用于 CuAAC 和交叉偶联反应的铜负载二氧化硅基纳米催化剂

负载在二氧化硅上的铜纳米粒子 (CuNPs–SiO 2 ) 已被探索作为各种催化反应的可持续催化剂,例如 Huisgen 1,3-偶极环加成(点击反应)、碳-硫 (C-S)、碳-氮 (C- N) 和碳-氧 (C-O) 偶联反应。铜催化的叠氮化物-炔烃环加成 (CuAAC) 协议属于点击化学家族,是有机化学中最可靠和最广泛的合成转化之一,具有多学科应用。Cu基SiO 2与无载体的对应物相比,纳米复合材料表现出优异的催化活性、稳定性和可回收性。因此,它揭示了设计具有理想催化性能的铜纳米复合材料的优势和重要性。本综述讨论了对 CuNPs–SiO 2纳米催化剂在金属负载、反应时间、产品收率、回收测试和其他协议方面的催化行为的更好理解,而不是一些商业 Cu 催化剂的催化行为。此外,总结和讨论了最近在CuNPs-SiO 2纳米催化剂的合成、表征和工业应用方面取得的进展,并展望了相关研究领域的前景。
更新日期:2022-06-23
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