Copper (II) complex supported on magnetic nanoparticles as a novel nanocatalyst for the synthesis of imidazo[1,2-a]pyridines

Molecular Diversity, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 25, 2024

Language: Английский

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Visible-Light-Mediated Cascade 1,4-Hydrogen Atom Transfer versus Dearomative Spirocyclization of N-Benzylacrylamides: Divergent Access to Functionalized γ-Ketoamides and 2-Azaspiro[4.5]decanes

The Journal of Organic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

Visible-light-driven metal- and photocatalyst-free cascade 1,4-HAT dearomative spirocyclization of N-benzylacrylamides are described for sustainable synthesis a variety pharmaceutically important γ-ketoamides 2-Azaspiro[4.5]decanes in one pot good to excellent yields. Readily accessible nontoxic materials, expensive Ir or Ru mild conditions, functional group tolerance, operational simplicity, scalability enhance the practical value this protocol. Mechanistic studies reveal that acyl radicals generated from α-oxocarboxylic acids trigger rare spirocyclization. The synthetic potential environmentally benign method is further showcased by late-stage functionalization drug molecules, amino acid, peptides.

Language: Английский

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Synthesis, in silico study and antimalarial activity of 2-thioxo-6-(trifluoromethyl)-1,2,3,4-tetrahydropyrimidine-5-carboxamide derivatives

Journal of Chemical Sciences, Journal Year: 2025, Volume and Issue: 137(2)

Published: April 7, 2025

Language: Английский

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Thermal and Hydrochloric Acid‐Treated Montmorillonite Clay/TiO₂ Nanoparticles as Potential Degrading Agent for PAHs in Solution: Adsorbent Characterization

Engineering Reports, Journal Year: 2025, Volume and Issue: 7(4)

Published: April 1, 2025

ABSTRACT The wide industrial purpose of polycyclic aromatic hydrocarbons (PAHs) in the production finished products is a major factor that influences their presence wastewater discharged into water bodies. Thus, synthesis materials have potential to remove these toxic chemicals from solution imperative. In this study, characterization thermally treated and hydrochloric acid‐modified montmorillonite nanoparticles (TAMC) supported with TiO 2 as degrading agent for PAHs was conducted using scanning electron microscope (SEM), energy‐dispersive spectroscopy (EDX), Fourier‐transform infrared (FTIR) spectrophotometer, x‐ray fluorescence (XRF), thermogravimetric analysis (TGA), powder diffractometer (XRD), Brunauer–Emmett–Teller (BET) method. SEM reveals transition clay (MC) microscale nanoscale formation larger pore openings after treatment impregnation. FTIR –OH, –C–H, Al–Mg–OH, Al–Al–OH, Al–O–Si, Si–O–Si on adsorbents' surface. After thermal HCl modification, wt% Na + , Mg 2+ Al 3+ K Ca Fe oxides MC reduced 0.07, 5.2, 25.1, 1.68, 1.81, 9.38 0.01, 1.23, 13.96, 0.65, 0.09, 4.38 wt%, respectively, shown by XRF. total volume, surface area, average diameter increased 0.058 cm 3 g −1 42.06 m 1.129 nm 0.164 139.75 4.333 nm, revealed BET analysis. impregnation unto TAMC textural properties. Adsorbents exhibit relatively similar TGA profiles but different weight loss at examined temperature ranges. XRD montmorillonite, kaolinite, feldspars, calcite phase angles all adsorbents. exhibited properties prepared proved it adsorbent degradation solution.

Language: Английский

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Selective peroxidative conversion of ethylbenzene catalyzed by Mn(II) complex under solvent-free conditions

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 161, P. 112078 - 112078

Published: Jan. 21, 2024

Language: Английский

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Synthesis and characterization of a Pd Schiff base complex anchored on Fe3O4 as a novel and recyclable catalyst for C C cross-coupling reactions

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1313, P. 138620 - 138620

Published: May 13, 2024

Language: Английский

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Fe3O4@SiO2@APTES@MPIB-Mn(II) as an eco-friendly and magnetically recyclable nano catalyst for the green synthesis of various xanthene derivatives

Journal of Molecular Structure, Journal Year: 2023, Volume and Issue: 1297, P. 137014 - 137014

Published: Nov. 6, 2023

Language: Английский

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Characterization of the Mechanical, Biodegradation, and Morphological Properties of NBR/Biopolymer Blend, Integrated with a Risk Evaluation

ACS Omega, Journal Year: 2024, Volume and Issue: 9(8), P. 9256 - 9268

Published: Feb. 13, 2024

Biopolymer blends have attracted considerable attention in industrial applications due to their notable mechanical properties and biodegradability. This work delves into the innovative combination of butadiene-acrylonitrile (referred as NBR) with a pectin-based biopolymer (NGP) at 90:10 mass ratio through detailed analysis employing characterization, Fourier transform infrared (FTIR) analysis, thermogravimetric (TGA), morphology studies using SEM. Additionally, biopolymer's biodegradability under aerobic anaerobic conditions is tested. The study's findings underscore superior tensile strength elongation break NGP/NBR blend comparison pure NBR, while also exhibiting decrease puncture resistance imperfect bonds particle–matrix interfaces, necessitating use compatibilizer. In conditions, evaluation biodegradable reveals 2% 12% NBR blend, respectively. degradation were aligned TGA results highlighting lower decomposition temperature for NGP. this research integrates application conditional value-at-risk (CVaR)-based blend's evaluate uncertainty impact experiment. Under risk, significant enhancement performance (by 80%) was shown compared NBR. Ultimately, study shows that adding pectin compound amplifies overall significantly select criteria.

Language: Английский

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First-principle simulation of inorganic Na₂CuSbX₆ (X = Cl, Br, I) halides for photovoltaic and energy conversion applications

Physica Scripta, Journal Year: 2024, Volume and Issue: 99(6), P. 065929 - 065929

Published: April 24, 2024

Abstract The exceptional flexibility of optoelectronic attributes exhibited by inorganic Na 2 CuSbX 6 (X = Cl, Br, I) halides has sparked significant interest in recent research. Our approach involves the utilization Wien2k and BoltzTrap coding to scrutinize mechanical, thermoelectric studied halides. Structural stability have been investigated through Born criteria employing generalized gradient approximation (GGA-PBEsol). In addition, negative formation energy (−2.15 eV for Cl-halide, −1.88 Br-halide −1.68 I-halide) indicate all are thermo-dynamical stable. For accurate calculation properties, modified Becke Johnson (mBJ) potential employed. Band structure semiconductor with indirect bandgap nature having values 1.7 1.34 0.85 I-halide respectively. Substituting Cl-halide Br results enhanced optical absorption predominantly visible region, causing a shift edge from light IR. Further, electronic properties discussed against temperature 300 K 800 K. computed higher Seebeck coefficient observed CuSbI suggests that narrower band gap is more suitable applications comparison CuSbBr CuSbCl . broader context, computational analysis indicates Li generally well suited use solar cell devices conversion applications.

Language: Английский

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Development of nanoscale uniform hexagonal zeolitic imidazole framework (ZIF-8) for the degradation of CAP and 5-FLU anticancer drugs

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2024, Volume and Issue: 456, P. 115827 - 115827

Published: June 6, 2024

Language: Английский

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