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Bodaghifard MA, Pourmousavi SA, Ahadi N, Zeynali P. An immobilized Schiff base-Mn complex as a hybrid magnetic nanocatalyst for green synthesis of biologically active [4,3- d]pyrido[1,2- a]pyrimidin-6-ones. NANOSCALE ADVANCES 2024; 6:2713-2721. [PMID: 38752148 PMCID: PMC11093261 DOI: 10.1039/d4na00131a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 04/03/2024] [Indexed: 05/18/2024]
Abstract
The immobilization of metal ions on inorganic supports has garnered significant attention due to its wide range of applications. These immobilized metal ions serve as catalysts for chemical reactions and as probes for studying biological processes. In this study, we successfully prepared Fe3O4@SiO2@Mn-complex by immobilizing manganese onto the surface of magnetic Fe3O4@SiO2 nanoparticles through a layer-by-layer assembly technique. The structure of these hybrid nanoparticles was characterized by various analytical techniques, including Fourier transform infrared spectroscopy (FT-IR), powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), scanning electron microscopy (SEM), and inductively coupled plasma-optical emission spectrometry (ICP-OES). Fe3O4@SiO2@Mn-complex was successfully utilized in the synthesis of biologically active 7-aryl[4,3-d]pyrido[1,2-a]pyrimidin-6(7H)-one derivatives in an aqueous medium, providing environmentally friendly conditions. The desired products were manufactured in high yields (81-95%) without the formation of side products. The heterogeneity of the solid nanocatalyst was assessed using a hot filtration test that confirmed minimal manganese leaching during the reaction. This procedure offers numerous advantages, including short reaction times, the use of a green solvent, the ability to reuse the catalyst without a significant decrease in catalytic activity, and easy separation of the catalyst using an external magnet. Furthermore, this approach aligns with environmental compatibility and sustainability standards.
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Affiliation(s)
- Mohammad Ali Bodaghifard
- Department of Chemistry, Faculty of Science, Arak University Arak 384817758 Iran
- Institute of Nanosciences &Nanotechnology, Arak University Arak Iran
| | | | - Najmieh Ahadi
- Institute of Nanosciences &Nanotechnology, Arak University Arak Iran
| | - Payam Zeynali
- School of Chemistry, Damghan University Damghan 36716-45667 Iran
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Khalaj M, Musavi SM, Ghashang M. Alkyl ammonium hydrogen sulfate immobilized on Fe 3O 4@SiO 2 nanoparticles: a highly efficient catalyst for the multi-component preparation of novel tetrazolo[1,5-a]pyrimidine-6-carboxamide derivatives. Sci Rep 2024; 14:8870. [PMID: 38632295 PMCID: PMC11024118 DOI: 10.1038/s41598-024-59096-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 04/08/2024] [Indexed: 04/19/2024] Open
Abstract
In this, a three-component reaction for the preparation of novel tetrazolo[1,5-a]pyrimidine-6-carboxamide derivatives from N,N'-(sulfonylbis(1,4-phenylene))bis(3-oxobutanamide), aldehydes and 1H-tetrazol-5-amine is reported. The application of Fe3O4@SiO2-(PP)(HSO4)2 (A) as a catalyst afforded the desired products (a1-a18) in high yields in DMF as solvent as well as under solvent-free conditions.
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Affiliation(s)
- Mehdi Khalaj
- Department of Chemistry, Islamic Azad University, Buinzahra Branch, Buinzahra, Iran.
| | - Seyed Mahmoud Musavi
- Department of Chemistry, Islamic Azad University, Buinzahra Branch, Buinzahra, Iran
| | - Majid Ghashang
- Department of Chemistry, Najafabad Branch, Islamic Azad University, Najafabad, Iran
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Khalaj M, Khatami SM, Kalhor M, Zarandi M, Anthony ET, Klein A. Polyethylenimine Grafted onto Nano-NiFe 2O 4@SiO 2 for the Removal of CrO 42-, Ni 2+, and Pb 2+ Ions from Aqueous Solutions. Molecules 2023; 29:125. [PMID: 38202707 PMCID: PMC10780180 DOI: 10.3390/molecules29010125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Polyethyleneimine (PEI) has been reported to have good potential for the adsorption of metal ions. In this work, PEI was covalently bound to NiFe2O4@SiO2 nanoparticles to form the new adsorbent NiFe2O4@SiO2-PEI. The material allowed for magnetic separation and was characterized via powder X-ray diffraction (PXRD), showing the pattern of the NiFe2O4 core and an amorphous shell. Field emission scanning electron microscopy (FE-SEM) showed irregular shaped particles with sizes ranging from 50 to 100 nm, and energy-dispersive X-ray spectroscopy (EDX) showed high C and N contents of 36 and 39%, respectively. This large amount of PEI in the materials was confirmed by thermogravimetry-differential thermal analysis (TGA-DTA), showing a mass loss of about 80%. Fourier-transform IR spectroscopy (FT-IR) showed characteristic resonances of PEI dominating the spectrum. The adsorption of CrO42-, Ni2+, and Pb2+ ions from aqueous solutions was studied at different pH, temperatures, metal ion concentrations, and adsorbent dosages. The maximum adsorption capacities of 149.3, 156.7, and 161.3 mg/g were obtained for CrO42-, Ni2+, and Pb2+, respectively, under optimum conditions using 0.075 g of the adsorbent material at a 250 mg/L ion concentration, pH = 6.5, and room temperature.
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Affiliation(s)
- Mehdi Khalaj
- Department of Chemistry, Buinzahra Branch, Islamic Azad University, Buinzahra 14778-93855, Iran
| | - Seyed-Mola Khatami
- Department of Chemical Industry, Technical and Vocational University (TVU), Tehran 14357-61137, Iran
| | - Mehdi Kalhor
- Department of Chemistry, Payame Noor University, Tehran 19395-4697, Iran
| | - Maryam Zarandi
- Department of Chemistry, Buinzahra Branch, Islamic Azad University, Buinzahra 14778-93855, Iran
| | - Eric Tobechukwu Anthony
- Institute for Inorganic Chemistry, Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Cologne, Greinstrasse 6, 50939 Köln, Germany
| | - Axel Klein
- Institute for Inorganic Chemistry, Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Cologne, Greinstrasse 6, 50939 Köln, Germany
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Khalaj M, Taherkhani M, Payen L, Klein A. A Sulfonic Acid Polyvinyl Pyridinium Ionic Liquid Catalyzes the Multi-Component Synthesis of Spiro-indoline-3,5'-pyrano[2,3- d]-pyrimidines and -Pyrazines. Molecules 2023; 28:molecules28093663. [PMID: 37175073 PMCID: PMC10180120 DOI: 10.3390/molecules28093663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/11/2023] [Accepted: 04/17/2023] [Indexed: 05/15/2023] Open
Abstract
A sulfonated poly-4-vinyl pyridinium (PVPy-IL-B-SO3H) containing an acidic pyridinium/HSO3- ionic liquid moiety was prepared and used as a catalyst for the three-component reaction of malononitrile with 1-alkylindoline-2,3-diones and 1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione or methyl 5-hydroxy-1H-pyrazole-3-carboxylate, leading to methyl 6'-amino-5'-cyano-2-oxo-2'H-spiro[indoline-3,4'-pyrano[2,3-c]pyrazole]-3'-carboxylates or -3,4'-pyrano[2,3-d]pyrimidine]-6'-carbonitrile derivatives under ultrasonic irradiation conditions. The solid catalyst allows easy separation, is cheap, produces high yields under mild conditions, and does not require column chromatography for product isolation and purification.
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Affiliation(s)
- Mehdi Khalaj
- Department of Chemistry, Buinzahra Branch, Islamic Azad University, Buinzahra 1477893855, Iran
| | - Mahboubeh Taherkhani
- Department of Chemistry, Takestan Branch, Islamic Azad University, Takestan 3481949479, Iran
| | - Leo Payen
- Institute for Inorganic Chemistry, Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Cologne, Greinstrasse 6, 50939 Köln, Germany
| | - Axel Klein
- Institute for Inorganic Chemistry, Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Cologne, Greinstrasse 6, 50939 Köln, Germany
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Pasuparthy SD, Maiti B. [CMMIM][BF 4 -] Ionic Liquid-Catalyzed Facile, One-Pot Synthesis of Chromeno[4,3- d]pyrido[1,2- a]pyrimidin-6-ones: Evaluation of Their Photophysical Properties and Theoretical Calculations. ACS OMEGA 2022; 7:39147-39158. [PMID: 36340130 PMCID: PMC9631728 DOI: 10.1021/acsomega.2c05015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Herein, we have developed a novel synthetic route for the synthesis of chromeno[4,3-d]pyrido[1,2-a]pyrimidin-6-one derivatives 8a-q using an acid ionic liquid [CMMIM][BF4 -] 4 via one-pot, three-component synthesis in aqueous ethanol at room temperature. A series of 17 derivatives have been successfully prepared with up to 93% yield. All the synthesized derivatives were well characterized using 1H-NMR, 13C-NMR, and FT-IR spectral techniques. Additionally, the photophysical properties of 12 selected derivatives including molar extinction coefficient (ε), Stokes shift (Δυ̅), and quantum yield (Φ) varying from 0.52095 × 104 to 0.93248 × 104, 4216 to 4668 cm-1, and 0.0088 to 0.0459, respectively, have been determined. Furthermore, the experimental data are supported by density functional theory (DFT) and time-dependent DFT calculations. Theoretical investigations showed a trend similar to experimental results.
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Mandal M, Karmakar I, Chakrabarty K, Das GK, Brahmachari G. Metal‐Free Sequential Amidation and Intramolecular C
sp2
−H Direct Amination of Coumarin‐3‐carboxylic Acids under Ambient Conditions: Scope and Mechanistic Insights. ChemistrySelect 2022. [DOI: 10.1002/slct.202103929] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mullicka Mandal
- Department of Chemistry Visva-Bharati (a Central University) Santiniketan 731 235 West Bengal India
| | - Indrajit Karmakar
- Department of Chemistry Visva-Bharati (a Central University) Santiniketan 731 235 West Bengal India
| | - Kuheli Chakrabarty
- Department of Chemistry Visva-Bharati (a Central University) Santiniketan 731 235 West Bengal India
| | - Gourab Kanti Das
- Department of Chemistry Visva-Bharati (a Central University) Santiniketan 731 235 West Bengal India
| | - Goutam Brahmachari
- Department of Chemistry Visva-Bharati (a Central University) Santiniketan 731 235 West Bengal India
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