2-氨基苯甲酰胺 、 邻苯二甲醛 在
copper(II)-L-histidine on the surface Fe3O4 magnetic nanoparticle 作用下,
以
乙醇 为溶剂,
反应 1.33h,
以86%的产率得到2,2'-(1,2-phenylene)bis(2,3-dihydroquinazolin-4(1H)-one)
参考文献:
名称:
多相Cu(ii)/ l -His @ Fe 3 O 4纳米催化剂:一种新型,高效且可磁回收的催化剂,用于绿色溶剂中的有机转化†
摘要:
一种新颖,高效,绿色的Cu(II)/ L- His @ Fe 3 O 4催化剂已成功用于杂环化合物的合成。所得催化剂用于合成2,3-二氢喹唑啉-4(1H)-酮,聚氢喹啉和2-氨基-6-(芳硫基)吡啶-3,5-二碳腈作为生物学上感兴趣的化合物。本研究的重点是研究相反应中催化剂的循环利用,可重复使用性和稳定性。Cu(II)/ L -His @ Fe 3 O 4该催化剂至少使用了六次,其活性与新鲜催化剂相当。通过TGA / DTG,EDS,XRD,VSM,FT-IR和SEM对催化剂的化学组成和结构进行了分析。
Synthesis of copper (II)-supported magnetic nanoparticle and study of its catalytic activity for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones
作者:Arash Ghorbani-Choghamarani、Masoomeh Norouzi.
DOI:10.1016/j.molcata.2014.08.013
日期:2014.12
A magnetic nanoparticle supported efficiently catalyzes for condensation 2-aminobenzamide with aldehydes to afford the corresponding 2,3-dihydroquinazolin-4(1H)-one derivatives successfully in high yield. The reactions were carried out in ethanol under reflux conditions. The protocol proves to be efficient and versatile benign in terms of very easy work-up and reused seven times without significant loss of catalytic activity. The heterogeneous catalyst was characterized by FT-IR spectroscopy, thermogravimetric (TGA) analysis, powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscope (TEM). (C) 2014 Elsevier B.V. All rights reserved.
Heterogeneous Cu(<scp>ii</scp>)/<scp>l</scp>-His@Fe<sub>3</sub>O<sub>4</sub> nanocatalyst: a novel, efficient and magnetically-recoverable catalyst for organic transformations in green solvents
A novel, efficient and green Cu(II)/L-His@Fe3O4 catalyst has been applied successfully in the synthesis of heterocyclic compounds. The resulting catalyst was used in the synthesis of 2,3-dihydroquinazolin-4(1H)-ones, polyhydroquinolines and 2-amino-6-(arylthio)pyridine-3,5-dicarbonitriles as biologically interesting compounds. The present research is focused on investigation of recycling, reusability
一种新颖,高效,绿色的Cu(II)/ L- His @ Fe 3 O 4催化剂已成功用于杂环化合物的合成。所得催化剂用于合成2,3-二氢喹唑啉-4(1H)-酮,聚氢喹啉和2-氨基-6-(芳硫基)吡啶-3,5-二碳腈作为生物学上感兴趣的化合物。本研究的重点是研究相反应中催化剂的循环利用,可重复使用性和稳定性。Cu(II)/ L -His @ Fe 3 O 4该催化剂至少使用了六次,其活性与新鲜催化剂相当。通过TGA / DTG,EDS,XRD,VSM,FT-IR和SEM对催化剂的化学组成和结构进行了分析。