A uniformly anchored zirconocene complex on magnetic reduced graphene oxide (rGO@Fe<sub>3</sub>O<sub>4</sub>/ZrCp<sub>2</sub>Cl<sub><i>x</i> (<i>x</i> = 0, 1, 2)</sub>) as a novel and reusable nanocatalyst for synthesis of <i>N</i>-arylacetamides and reductive-acetylation of nitroarenes
作者:Massood Bayzidi、Behzad Zeynizadeh
DOI:10.1039/d2ra02293a
日期:——
complex on rGO@Fe3O4 as a novel magnetic nanocatalyst was synthesized and then characterized using FT-IR, SEM, EDX, VSM, ICP-OES, TGA, BET and MS analyses. Next, catalytic activity of the prepared nanocomposite rGO@Fe3O4/ZrCp2Clx (x = 0, 1, 2) towards successful reduction of aromatic nitro compounds to arylamines using N2H4·H2O (80%) was investigated. The examined nanocatalyst also showed perfect catalytic
在本研究中,合成了rGO@Fe 3 O 4上的二茂锆复合物作为新型磁性纳米催化剂,然后使用FT-IR、SEM、EDX、VSM、ICP-OES、TGA、BET 和MS 分析进行表征。接下来,制备的纳米复合材料rGO@Fe 3 O 4 /ZrCp 2 Cl x ( x = 0, 1, 2)使用N 2 H 4 ·H 2 O (80%)成功地将芳香族硝基化合物还原为芳胺的催化活性被调查。使用N 2 H 4 ·H 2 O/Ac 2 O系统,所检测的纳米催化剂还显示出将芳香族硝基化合物还原乙酰化为相应的N-芳基乙酰胺的完美催化活性,而无需分离制备的原位胺。此外,在rGO@Fe 3 O 4 /ZrCp 2 Cl x ( x = 0,1,2)纳米复合材料存在下,通过乙酸酐将市售芳胺乙酰化为相应的N-芳基乙酰胺。所有反应均在回流 EtOH 作为绿色溶剂中进行,以高产率提供产物。结果表明,与rGO和rGO@Fe