NNN-pincer-copper complex immobilized on magnetic nanoparticles as a powerful hybrid catalyst for aerobic oxidative coupling and cycloaddition reactions in water
作者:Nasrin Zohreh、Mahboobeh Jahani
DOI:10.1016/j.molcata.2016.11.007
日期:2017.1
such as SEM, TEM, FT-IR, TGA, ICP, XRD, and elemental analysis. The finely engineered supported catalyst is employed in the aerobic oxidative coupling of terminalalkynes and click reaction using only 0.38 and 0.04 mol% catalyst, respectively. All reactions perform under solvent-free condition or green solvent H 2 O. Also, the catalyst is readily recovered and reused for up to 8 and 6 subsequent runs
摘要 描述了一种简单可靠的方法,用于制备第一个对表面组成具有高度控制的非均相 NNN-钳形铜杂化催化剂。该策略依赖于 2-氨基吡啶与三聚氯氰功能化磁性纳米粒子的共价键合,然后与 CuI 络合。这些声明通过不同的表征方法得到证实,例如 SEM、TEM、FT-IR、TGA、ICP、XRD 和元素分析。精细设计的负载型催化剂用于末端炔烃的有氧氧化偶联和点击反应,分别仅使用 0.38 和 0.04 mol% 的催化剂。所有反应均在无溶剂条件或绿色溶剂 H 2 O 下进行。此外,
Nano magnetite supported metal ions as robust, efficient and recyclable catalysts for green synthesis of propargylamines and 1,4-disubstituted 1,2,3-triazoles in water
Nano magnetite functionalized 2,2′-biimidazole complex of metal ions Cu(I), Cu(II), Ni(II) and Co(II) were successfully synthesized and characterized by different techniques such as elemental analysis, FT-IR spectroscopy, X-ray diffraction (XRD), thermo gravimetric analysis (TGA), transmission electron microscopy (TEM), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM with
A novel heterogeneous copper catalyst was synthesized in which poly(1-vinyl imidazole-co-ionic liquid) was used as a solid heterogeneous support.
一种新型的异质铜催化剂被合成,其中聚(1-乙烯咪唑-co-离子液体)被用作固体异质支撑。
A novel highly dispersive magnetic nanocatalyst in water : glucose as an efficient and green ligand for the immobilization of copper(<scp>ii</scp>) for the cycloaddition of alkynes to azides