Novel glycosyl pyridyl-triazole@palladium nanoparticles: efficient and recoverable catalysts for C–C cross-coupling reactions
作者:Hongyun Shen、Chao Shen、Chao Chen、Anming Wang、Pengfei Zhang
DOI:10.1039/c5cy00013k
日期:——
with palladium in a bidentate (N,N) coordination mode. Their use in palladium-catalyzed C–C coupling reactions such as Suzuki–Miyaura coupling, Heck reaction and Sonogashira reaction achieved quantitative production under mild conditions. Furthermore, the catalysts can be easily separated from the reaction mixture and the catalytic activity remained unchanged even after 8 successive catalytic cycles.
我们报告了一系列糖基吡啶基-三唑@钯纳米颗粒(GPT-Pd)的开发,这些纳米颗粒是通过点击化学通过叠氮糖苷与2-乙炔基吡啶的反应合成的。这些钯纳米粒子以高收率获得,并通过1 H和13 C NMR,元素分析,透射电子显微镜和热重分析进行了全面表征。经测定,GPT-Pd催化剂5c的单晶结构表明糖基吡啶基-三唑与钯在双齿酸盐(N,N)协调模式。它们在钯催化的CC偶联反应(如Suzuki-Miyaura偶联,Heck反应和Sonogashira反应)中的使用在温和条件下实现了定量生产。此外,催化剂可以容易地从反应混合物中分离出来,并且即使在连续8次催化循环后,催化活性也保持不变。