Green Approach for Highly Efficient Synthesis of Polyhydroquinolines Using Fe3O4@PEO-SO3H as a Novel and Recoverable Magnetic Nanocomposite Catalyst
作者:Mojtaba Azizi、Ali Maleki、Farahman Hakimpoor、Razieh Firouzi-Haji、Mina Ghassemi、Jamal Rahimi
DOI:10.2174/1570178615666180126155204
日期:2018.7.26
A novel and green heterogeneous nanocomposite, polyethylene oxide sulfonic acid coated
on magnetic nanoparticles surface (Fe3O4@PEO-SO3H), was successfully synthesized and completely
characterized by Fourier-transforms infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy
(EDX), vibrating sample magnetometry (VSM), inductively-coupled plasma (ICP), Brunauer–
Emmett-Teller (BET), scanning electron microscopy (SEM) and transmission electron microscopy
(TEM) analyses. Then, its catalytic activity was investigated in a one-pot four-component synthesis of
polyhydroquinolines (PHQs). The present work includes various advantages such as high-to-excellent
yields, short reaction times and availability of the substrates, reusability of the catalyst, operational
simplicity and environmentally-benign conditions.
一种新型绿色异质纳米复合材料,即聚乙烯氧化物磺酸涂覆在磁性纳米颗粒表面的复合物(Fe3O4@PEO-SO3H),成功合成并通过傅里叶变换红外光谱(FT-IR)、能量色散X射线光谱(EDX)、振动样品磁强计(VSM)、感应耦合等离子体(ICP)、比表面积分析(BET)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)进行了全面表征。然后,研究了其在一次性四组分合成聚氢喹啉(PHQs)中的催化活性。本研究具有多种优点,如高到优良的产率、短反应时间和基材的可获得性、催化剂的可重复使用、操作简单以及环境友好的条件。