Ferromagnetic nanoparticle-supported copper complex: A highly efficient and reusable catalyst for three-component syntheses of 1,4-disubstituted 1,2,3-triazoles and C-S coupling of aryl halides
作者:Mohammad Mehdi Khodaei、Kiumars Bahrami、Farhat Sadat Meibodi
DOI:10.1002/aoc.3714
日期:2017.10
A new nanocatalyst was synthesized by immobilization of 4′‐(4‐hydroxyphenyl)‐2,2′:6′,2″‐terpyridine/CuI complex on ferromagnetic nanoparticles through a surface modification (FMNPs@SiO2‐TPy‐Cu). This heterogeneous catalyst was characterized using various techniques including Fourier transform infrared and energy‐dispersive X‐ray spectroscopies, transmission and scanning electron microscopies, X‐ray
通过表面修饰(FMNPs @ SiO 2)将4'-(4-羟苯基)-2,2':6',2''-吡啶和CuI络合物固定在铁磁纳米颗粒上,合成了一种新的纳米催化剂-TPy-Cu)。这种非均相催化剂使用多种技术进行了表征,包括傅立叶变换红外光谱和能量色散X射线光谱,透射和扫描电子显微镜,X射线衍射,振动样品磁力分析和热重分析。所得的纳米催化剂对1,4-二取代的1,2,3-三唑和硫醚的区域选择性合成具有出色的催化活性。使用外部磁体很容易回收热和化学稳定,良性和经济的催化剂,并在至少五个连续运行中重复使用,而不会造成明显的活性损失。