CuI‐functionalized halloysite nanoclay as an efficient heterogeneous catalyst for promoting click reactions: Combination of experimental and computational chemistry
作者:Naeimeh Bahri‐Laleh、Samaheh Sadjadi、Majid M. Heravi、Masoumeh Malmir
DOI:10.1002/aoc.4283
日期:2018.6
salicylaldehyde and formation of imine functionality (HNTs‐2 N‐Sal). The latter was subsequently used for immobilization of CuI and formation of CuI@HNTs‐2 N‐Sal, which could effectively promote click reactions of terminal alkynes, sodium azide and α‐haloketones or alkyl halides in aqueous media and under mild reaction conditions to afford 1,2,3‐triazoles in relatively short reaction times. Notably, the catalyst
制备了胺官能化的埃洛石纳米管(HNTs-2 N),并通过引入水杨醛和形成亚胺官能团(HNTs-2 N-Sal)进行了进一步修饰。后者随后被用于固定CuI和形成CuI @ HNTs-2 N-Sal,这可以有效地促进末端炔烃,叠氮化钠和α-卤代酮或卤代烷的点击反应,在温和的反应条件下提供1,2,3-三唑的反应时间相对较短。值得注意的是,该催化剂可循环使用多达六个反应,而催化活性和CuI的损失可忽略不计。此外,通过分子模拟和密度泛函理论研究了CuI在改性HNTs表面的吸附几何形状。此外,使用最近发布的SambVca2 Web应用程序工具,可以获得可能的协调模式的地形立体图。基于获得的结果,提出了具有优异性能的催化部位。