Synthesis of a magnetic polystyrene-supported Cu(II)-containing heterocyclic complex as a magnetically separable and reusable catalyst for the preparation of N-sulfonyl-N-aryl tetrazoles

Scientific Reports, Год журнала: 2023, Номер 13(1)

Опубликована: Фев. 24, 2023

In this work, a cost-effective, environmentally friendly, and convenient method for synthesizing novel heterogeneous catalyst via modification of polystyrene using tetrazole-copper magnetic complex [Ps@Tet-Cu(II)@Fe3O4] has been successfully developed. The synthesized was analyzed TEM (transmission electron microscopy), HRTEM (high resolution-transmission STEM (scanning transmission FFT (Fast Fourier transform), XRD (X-ray diffraction), FT-IR (Fourier transform-infrared spectroscopy), TG/DTG (Thermogravimetry differential thermogravimetry), ICP-OES (Inductively coupled plasma-optical emission spectrometry), Vibrating sample magnetometer (VSM), EDS (energy dispersive X-ray elemental mapping. N-Sulfonyl-N-aryl tetrazoles were in high yields from N-sulfonyl-N-aryl cyanamides sodium azide Ps@Tet-Cu(II)@Fe3O4 nanocatalyst. can be recycled reused easily multiple times an external magnet without significant loss catalytic activity.

Язык: Английский

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Fe₃O₄@ABA-aniline-CuI nanocomposite as a highly efficient and reusable nanocatalyst for the synthesis of benzothiazole-sulfide aryls and heteroaryls

RSC Advances, Год журнала: 2023, Номер 13(29), С. 20351 - 20364

Опубликована: Янв. 1, 2023

Studying diaryl sulfides and benzothiazoles is important in organic synthesis because numerous natural medicinal products contain these scaffolds. Over the past few years, research on of compounds containing benzothiazole-sulfide aryls, as biological molecules, has received significant attention. Multicomponent reactions are most popular strategy for performing difficult complexed molecules such aryls. In this work, CuI was successfully immobilized surface magnetic Fe3O4 nanoparticles modified with aniline 4-aminobenzoic acid [Fe3O4@ABA-Aniline-CuI nanocomposite] its catalytic activity investigated preparation a broad range aryls heteroaryls through one-pot three-component 2-iodoaniline carbon disulfide aryl or heteroaryl iodides presence KOAc base PEG-400 solvent. TEM SEM images revealed that shape Fe3O4@ABA-Aniline-CuI particles spherical size approximately between 12-25 nanometers.

Язык: Английский

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Fabrication of Fe₃O₄-Bis(Py-Imine)-PdCl₂ Nanocomposite as a Highly Active Nanomagnetic Catalyst for Carbonylative Suzuki Reactions of Phenylboronic Acid with Aryl Iodides and Mo(CO)₆

Polycyclic aromatic compounds, Год журнала: 2023, Номер unknown, С. 1 - 17

Опубликована: Июль 20, 2023

In the research work, a novel and recoverable nanomagnetic pallidum catalyst [Fe3O4-Bis(Py-Imine)-PdCl2 ] based on immobilization of Pd surface magnetic Fe3O4 nanoparticles modified with picolylamine as ligand was designed fabricated. The structure as-fabricated Fe3O4-Bis(Py-Imine)-PdCl2 nanocatalyst characterized by FT-IR spectroscopy, SEM, TEM, EDX, ICP-OES, TGA, VSM, XRD EDX mapping techniques. nanocomposite demonstrated high activity in preparation diaryl ketones through one-pot three-component Suzuki reactions phenylboronic acids aryl iodides Mo(CO)6. recycling examined coupling acid 4-methyl iodobenzene Mo(CO)6; results revealed that this could be reused for more than 6 consecutive runs without loss activity. This method offers several remarkable features, such yield products, simplicity separation products from catalysts, performing green solvent mild conditions, ability to recycle reusing significant reduction its catalytic

Язык: Английский

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Green synthesis, characterizations, and antibacterial activity of silver nanoparticles from Themeda quadrivalvis, in conjugation with macrolide antibiotics against respiratory pathogens

REVIEWS ON ADVANCED MATERIALS SCIENCE, Год журнала: 2023, Номер 62(1)

Опубликована: Янв. 1, 2023

Abstract The current study has portrayed the synthetic mixtures of Themeda quadrivalvis using gas chromatography–mass spectrometry (GCMS), combination green silver nanoparticles (AgNPs) formed with macrolide antimicrobials. counter microbial effects were investigated various concentrates plant compounds, AgNPs, and macrolide-formed AgNPs against respiratory microorganisms. GCMS examination shown presence substances that intensifies chloroform concentrate T. . A total 51 distinguished, furthermore, most severe zone restraint was found in removal Klebsiella sp. (18 ± 4.7 mm). It been demonstrated mixture containing anti-toxins, such as azithromycin, erythromycin, clarithromycin, demonstrates extensive antibacterial activities a wide range In contrast, union also their efficacy microbes. particles numerous relatively small fragments observed scanning electron microscopy analysis to be 20 nm size. Previous studies have focused on phytochemicals amalgamations but not much detail provided reported two (a consolidated nanoparticle anti-toxins). present aims treat microorganisms methodology approach nanotechnology; this primarily focuses offering creative approaches make drugs

Язык: Английский

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Dual role of chlorogenic acid as an influential precursor in synthesizing nano‐sized Cu(II) complexes and investigating its catalytic role in the oxidation of alcohols and its antibacterial activity

Journal of Organometallic Chemistry, Год журнала: 2023, Номер 996, С. 122758 - 122758

Опубликована: Май 17, 2023

Язык: Английский

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Electrochemical determination of zearalenone in agricultural food samples using a flower like nanocomposite-modified electrode

Materials Chemistry and Physics, Год журнала: 2023, Номер 305, С. 127986 - 127986

Опубликована: Июнь 2, 2023

Язык: Английский

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NiO Nanoparticle-decorated graphene oxide nanosheets modified glassy carbon electrode for sensitive electrochemical detection of pethidine

International Journal of Electrochemical Science, Год журнала: 2023, Номер 18(9), С. 100221 - 100221

Опубликована: Июнь 5, 2023

Pethidine (PTD), a synthetic opioid prescribed frequently as painkiller, was included in the WADA list of prohibited substances sports. The purpose this study is to investigate electrochemical determination PTD using modified glassy carbon electrode decorated with NiO nanoparticles and graphene oxide nanosheets (NiO-GO/GCE). NiO-GO nanocomposite created straightforward chemical reduction technique. SEM, TEM, XRD analysis structure morphology pointed nanocomposite's effective production. Results showed that NiO-GO/GCE responded sensitive, focused, stable manner relatively low detection limit value (3.8 ng/mL) wide linear range (0–500 μg/mL) compared other sensors. on appropriateness validation for determining content clinical human fluid samples illustrated good recoveries between 90.00 % 99.66 relative standard deviation less than 5.41 %, which were acceptable corroborated results sensor urine from healthy athlete volunteers.

Язык: Английский

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Design, Synthesis and Characterization of Strontium and Cerium-Co-Doped TiO ₂ -HAp as an Efficient Nanocomposite: Investigation of Its Photocatalytic and Catalytic Applications

Polycyclic aromatic compounds, Год журнала: 2023, Номер 43(10), С. 9461 - 9478

Опубликована: Янв. 17, 2023

As a new and efficient nanocomposite, strontium cerium co-doped TiO2/HAp were synthesized analyzed by energy dispersive X-ray spectroscopy (EDX), Fourier transform infrared (FTIR), diffraction (XRD), scanning electron microscopy (SEM), surface measurements of porous Material Brunauer-Emmett-Teller (BET). Evaluations showed that the doping metal cations presence hydroxyapatite reduced gap, increased area, adsorption, electron-hole recombination. The results also over 92% methylene blue was removed within 100 min. A pseudo-first-order synthetic response obtained. In addition, Sr Ce nanocomposites have been successfully applied in synthesis various amides H2O as solvent selective hydration nitrile derivatives under reflux conditions. corresponding product selectively obtained good yield. prepared show higher catalytic activity compared to hydroxyapatite, TiO2, TiO2. recyclability catalyst has tested up 5 times without loss activity.

Язык: Английский

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Synthesis of p-aminothiophenol functionalized graphene oxide/silver nanoparticles nanocomposite and its application for the determination of rutin in rose species flowers

International Journal of Electrochemical Science, Год журнала: 2023, Номер 18(10), С. 100277 - 100277

Опубликована: Июль 7, 2023

This study used an electrochemical sensor based on a glassy carbon electrode that was designed with nanocomposite of silver nanoparticles and p-aminothiophenol functionalized graphene oxide (Ag NPs/PATP/f-GO/GCE) to measure the level rutin in actual samples taken from flowers rose species. To create Ag NPs/PATP/f-GO nanocomposite, NPs were synthesized using traditional heating process chemically combined acid-treated GO p-aminothiophenol. nanocomposite's effective production confirmed by X-ray diffraction (XRD), scanning electron microscope (SEM), photoelectron spectroscopy (XPS) investigations. The construction sensitive, selective system for identification made possible synergistic interaction NPs, PATP, f-GO nanosheets, as demonstrated studies cyclic voltammetry (CV) square wave (SWV) measurements. suggested linear response 5 1050 μM. It determined sensitivity limit detection (LOD = 3σ/S, where S is slope regression line σ standard deviation intercept) 0.02902 μA/μM 17 nM, respectively. For purpose determining genuine sample species (damascene rose) Nanyang Henan province, China, sensor's accuracy capability evaluated. Results showed f-GO, GCE may be dependable sensors monitor concentration remarkable recovery values (higher than 98.32%) relative adequate (RSD less 5.41%).

Язык: Английский

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Solvent effect on adsorption of benzylidene oxindole to C₂₀ nanocage: A DFT approach

Journal of Physical Organic Chemistry, Год журнала: 2023, Номер 36(7)

Опубликована: Март 20, 2023

Abstract In this paper, one of the selective and potent inhibitors named ( E )‐3‐benzylidene‐indoline‐2‐one I ), as against different receptor tyrosine kinase in metastasis, angiogenesis, tumor growth, is inspected gas phase solution, at B3LYP/6‐311++G** B3LYP/AUG‐cc‐pVTZ level theory. A stimulating issue for biologically active species effect media on its stability, structure, energy gap intermolecular [4 + 2] adsorption (as diene) to C 20 dienophile) yield )‐3‐benzylidene‐indoline‐2‐one[20]fullerene: a complex. going from 6 H , 2 4 Cl EtOH, MeNO DMSO, O solvents, individually, optimization complex ) leads following: (1) The thermodynamic stability; difference between liquid (∆ l–g dipole moment (μ) seem proportional dielectric constant (ε) scrutinized media. (2) kinetic ∆E L–H frontier molecular orbitals; FMO altered opposite direction ε. (3) Despite popular belief that endo isomer emerges thermodynamically more stable than corresponding exo isomer, we suggest formation kinetically because π–π stacking among benzyl ring nanocage. (4) possibility hetero cycloaddition anticipated by lowest barrier 3.8 kcal/mol probed transition state (TS) phase, while highest 7.9 corresponds TS water. (5) Due lack repulsion type interaction, unstable fullerene with oxindole can be carried out thermally r.t. currently hold responsible origin stereoselectivity.

Язык: Английский

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