Department of Chemistry, School of Science, Tianjin University, Tianjin 300354, PR China; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, PR China.
Department of Chemistry, School of Science, Tianjin University, Tianjin 300354, PR China; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, PR China.
Carbohydr Polym. 2017 Mar 15;160:106-114. doi: 10.1016/j.carbpol.2016.12.044. Epub 2016 Dec 21.
In this paper, N-Methylimidazole functionalized carboxymethylcellulose-supported palladium nanoparticles (CMC-NHC-Pd) was synthesized and characterized by TEM, SEM, EDX, CP/MAS C NMR, FT-IR, TGA, XRD, and XPS analysis. The prepared nanoparticles can be used as an environmentally-friendly and trifunctional catalyst. The well-designed CMC supported palladium nanoparticles catalyst with polydentate ligands is also stable and efficient for Suzuki cross-coupling reactions under mild conditions through the cooperative interaction of trifunctional capturing sites with palladium, -COO, -OH and N-Methylimidazole. This catalyst can be readily recovered by a few cycles of simple filtration. This work proposes a plausible trifunctional catalyst complex.
本文合成并通过 TEM、SEM、EDX、CP/MAS C NMR、FT-IR、TGA、XRD 和 XPS 分析对 N-甲基咪唑功能化羧甲基纤维素负载钯纳米粒子（CMC-NHC-Pd）进行了表征。所制备的纳米粒子可用作环保型三功能催化剂。通过三功能捕获位点与钯、-COO、-OH 和 N-甲基咪唑的协同相互作用，设计良好的具有多齿配体的 CMC 负载钯纳米粒子催化剂在温和条件下也可用于 Suzuki 交叉偶联反应，具有稳定性和高效性。该催化剂可通过几次简单的过滤循环轻松回收。这项工作提出了一种合理的三功能催化剂配合物。
