Ni-Fe2O3@SiO2-Pr-DBU: A novel efficient magnetically retrievable catalyst for one-pot synthesis of dihydropyrano [3,2-c] chromene

IF 2.1 3区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Journal of Organometallic Chemistry Pub Date : 2024-08-31 DOI:10.1016/j.jorganchem.2024.123341
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Abstract

In the present work, Ni-Fe2O3@SiO2-Pr-DBU was synthesized as a novel magnetically separable nano-catalyst and characterized by various techniques like Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), Scanning electron microscopy (SEM), Vibrating-sample magnetometry (VSM), Transmission electron microscopy (TEM) and Elemental analysis by energy dispersive X-ray (EDX). The catalytic efficiency of NiFe2O3@SiO2-Pr-DBU was explored in the synthesis of dihydropyrano[3,2-c] chromenes through a one-pot multicomponent reaction of 4-hydroxycoumarin, malononitrile, and aryl aldehydes in aqueous solution at ambient temperature condition. An external magnet easily removed the nano-sized magnetic core catalyst from the synthesized reaction mixture. It was recycled for five successive runs while maintaining its potential and adhering to our green synthesis approach. We used dihydropyrano chromene, a highly biologically active commercial compound, to prepare some novel derivatives.

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Ni-Fe2O3@SiO2-Pr-DBU:用于二氢吡喃并[3,2-c]色烯一锅合成的新型高效磁回收催化剂
在本研究中,合成了新型磁分离纳米催化剂 Ni-Fe2O3@SiO2-Pr-DBU ,并通过傅立叶变换红外光谱 (FT-IR)、X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、振动样品磁力计 (VSM)、透射电子显微镜 (TEM) 和能量色散 X 射线 (EDX) 元素分析等多种技术对其进行了表征。在常温条件下,通过在水溶液中对 4-羟基香豆素、丙二腈和芳基醛进行一锅多组分反应,探索了 NiFe2O3@SiO2-Pr-DBU 在合成二氢吡喃并[3,2-c] 苯并吡喃中的催化效率。外置磁铁可以轻松地将纳米级磁芯催化剂从合成反应混合物中移除。该催化剂被连续循环使用了五次,同时保持了其潜力,并坚持了我们的绿色合成方法。我们利用二氢吡喃铬烯(一种具有高度生物活性的商用化合物)制备了一些新型衍生物。
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来源期刊
Journal of Organometallic Chemistry
Journal of Organometallic Chemistry 化学-无机化学与核化学
CiteScore
4.40
自引率
8.70%
发文量
221
审稿时长
36 days
期刊介绍: The Journal of Organometallic Chemistry targets original papers dealing with theoretical aspects, structural chemistry, synthesis, physical and chemical properties (including reaction mechanisms), and practical applications of organometallic compounds. Organometallic compounds are defined as compounds that contain metal - carbon bonds. The term metal includes all alkali and alkaline earth metals, all transition metals and the lanthanides and actinides in the Periodic Table. Metalloids including the elements in Group 13 and the heavier members of the Groups 14 - 16 are also included. The term chemistry includes syntheses, characterizations and reaction chemistry of all such compounds. Research reports based on use of organometallic complexes in bioorganometallic chemistry, medicine, material sciences, homogeneous catalysis and energy conversion are also welcome. The scope of the journal has been enlarged to encompass important research on organometallic complexes in bioorganometallic chemistry and material sciences, and of heavier main group elements in organometallic chemistry. The journal also publishes review articles, short communications and notes.
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