Synthesis and application of CoFe₂O₄@THAM@PHG‐SO₃H nanoparticles as a new and highly recyclable nanocatalyst in the one‐pot multicomponent synthesis of 3,4‐dihydropyranochromenes and chromeno[3,4‐<i>b</i>]quinoline‐6‐ones
作者:Elham Mir、Nourallah Hazeri、Homayoun Faroughi Niya、Maryam Fatahpour
DOI:10.1002/aoc.7372
日期:2024.4
catalytic efficiency of the nanocatalyst in two reactions: the synthesis of 3,4-dihydropyranochromenes from the reaction among aromatic aldehydes, 4-hydroxycoumarin, and malononitrile, and the synthesis of chromeno[3,4-b]quinoline-6-ones from the reaction among aniline, 4-hydroxycoumarin, and aromatic aldehydes.
在这项研究中,我们通过用氯磺酸、三(羟甲基)氨基甲烷(THAM)、1,2-二氯乙烷和间苯三酚(PHG)处理CoFe2O4磁性纳米颗粒,开发了一种新型环保磁性纳米催化剂。他们利用 FT-IR、SEM、MAP、EDS、XRD、TGA、DTA 和 VSM 等多种技术证实了催化剂的合成。研究人员随后评估了纳米催化剂在两个反应中的催化效率:通过芳香醛、4-羟基香豆素和丙二腈之间的反应合成3,4-二氢吡喃色烯,以及合成色烯[3,4- b ]喹啉-由苯胺、4-羟基香豆素和芳香醛反应生成6-酮。