Preparation of a novel, efficient, and recyclable magnetic catalyst, Cu(II)-OHPC-Fe<sub>3</sub>O<sub>4</sub> nanoparticles, and a solvent-free protocol for the synthesis of coumarin derivatives
作者:Jingjing Yuan、Majid Mohammadnia
DOI:10.1080/00958972.2021.1954172
日期:2021.7.18
Abstract Cu(II) supported on 5-oxo-4,5-dihydro-pyrrole-3-carboxylic acid functionalized Fe3O4 nanoparticles (Cu(II)-OHPC-Fe3O4) as a new magnetic nanocatalyst was prepared and characterized by ICP-AES, FT-IR, XRD, SEM, TEM, TGA, XRD, VSM and EDX techniques. Prepared nanocatalyst (Cu(II)-OHPC-Fe3O4) is employed for Pechmann reactions between different substituted phenols and ethyl acetoacetate to obtain
摘要 制备并表征了负载在 5-oxo-4,5-dihydro-pyrrole-3-羧酸官能化 Fe 3 O 4纳米粒子(Cu(II)-OHPC-Fe 3 O 4)上的Cu(II ) 作为一种新型磁性纳米催化剂通过 ICP-AES、FT-IR、XRD、SEM、TEM、TGA、XRD、VSM 和 EDX 技术。制备的纳米催化剂(Cu(II)-OHPC-Fe 3 O 4)用于不同取代酚与乙酰乙酸乙酯之间的Pechmann反应,以良好到优异的收率获得香豆素衍生物新产品。这种绿色催化剂很容易去除,可重复使用多次,其活性没有显着损失,并且提供了具有优异收率和缩短时间的清洁合成。