Eco-Friendly One-Pot Synthesis of Tetrahydrobenzo[ b ]Pyran and Dihydropyrano[3,2- c ]Chromene Derivatives Using Functionalized Fe 3 O 4 @SiO 2 @SO 3 H Under MWI DOI
Raju Shekhanavar,

Santosh Y. Khatavi,

Kantharaju Kamanna

и другие.

Polycyclic aromatic compounds, Год журнала: 2024, Номер unknown, С. 1 - 20

Опубликована: Авг. 23, 2024

The present work describes a greener method of preparation Fe3O4 nanoparticles, which are then functionalized to Fe3O4@SiO2@SO3H, and employed in the one-pot three-component synthesis tetrahydrobenzo[b]pyran dihydropyrano[3,2-c]chromene derivatives. These synthesized derivatives an important class heterocyclic scaffolds exhibit significant potential as anti-coagulant, diuretic, spasmolytic, anticancer, anti-anaphylactic agents. prepared MNP-based catalysts were characterized using XRD, FE-SEM, VSM, TG-DTA, Raman spectroscopy. involved condensation reaction enolizable compounds with aldehyde, dimedone, ethyl cyanoacetate for tetrahydrobenzo[b]pyran, aromatic 4-hydroxycoumarin, malononitrile synthesis. was optimized different techniques such stirring, ultrasonication, microwave irradiation, irradiation demonstrating faster product separation high yield. homogeneity isolated analyzed by FT-IR,1H-13C-NMR, mass spectrometry. advantages this include its simplicity, eco-friendliness, cost-effectiveness, it also evades use toxic metals solvents. is easily through simple workup process recrystallization ethanol yields pure isolation.

Язык: Английский

Oxalis pes-caprae L. Extract Conferred Its Biological Activities to Silver Nanoparticles DOI Creative Commons
Zahid Hussain Khan, Rahmat Ali Khan, Mushtaq Ahmed

и другие.

Nano Biomedicine and Engineering, Год журнала: 2024, Номер unknown

Опубликована: Март 7, 2024

This study used Oxalis pes-caprae L. (OP) to develop a low-budget, low-maintenance, and environment-friendly production method for silver nanoparticles (AgNPs) evaluated their antibacterial, antifungal, antioxidant abilities. Ultraviolet–visible (UV–Vis) spectroscopy results revealed maximum of absorbance at 431 nm, confirming the formation AgNPs. Moreover, Fourier transform infrared (FTIR) analysis synthesized AgNPs indicated presence various important functional groups, such as O–H, CH, H–C–H, C–O–C, which are involved in synthesis stability OP-AgNPs. X-ray diffraction (XRD) confirmed crystalline nature AgNPs, had an average particle size 46.31 nm four Bragg reflections 38.2°, 44.32°, 64.4°, 77.1°. The Nanomeasurer software that 89% particles 50 scanning electron microscope also spherical shaped, monodispersed, high-density formation. Energy dispersive was main element with highest sharp peak 3.0 keV. We assessed antibacterial antifungal activities OP extract on bacteria strains Escherichia coli, Acetobacter, Staphylococcus epidermidis, fungi Aspergillus nigar flavus. displayed more potent inhibition abilities than plant. Similarly, 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2-azobis,3-ethylbenzothiazoline-6-sulphonic acid (ABTS), hydrogen peroxide (H2O2) assays, better reduction capacities plant extract.

Язык: Английский

Процитировано

0
Synthesis, Characterization, and Biological Activities of Ag-Au Nanoparticles Using Heliotropium eichwaldi L. Extract as a Reducing and Stabilizing Agent DOI
Naila Sher, Mushtaq Ahmed, Nadia Mushtaq

и другие.

BioNanoScience, Год журнала: 2024, Номер 14(4), С. 4532 - 4550

Опубликована: Май 22, 2024

Язык: Английский

Процитировано

0
Eco-Friendly One-Pot Synthesis of Tetrahydrobenzo[ b ]Pyran and Dihydropyrano[3,2- c ]Chromene Derivatives Using Functionalized Fe 3 O 4 @SiO 2 @SO 3 H Under MWI DOI
Raju Shekhanavar,

Santosh Y. Khatavi,

Kantharaju Kamanna

и другие.

Polycyclic aromatic compounds, Год журнала: 2024, Номер unknown, С. 1 - 20

Опубликована: Авг. 23, 2024

The present work describes a greener method of preparation Fe3O4 nanoparticles, which are then functionalized to Fe3O4@SiO2@SO3H, and employed in the one-pot three-component synthesis tetrahydrobenzo[b]pyran dihydropyrano[3,2-c]chromene derivatives. These synthesized derivatives an important class heterocyclic scaffolds exhibit significant potential as anti-coagulant, diuretic, spasmolytic, anticancer, anti-anaphylactic agents. prepared MNP-based catalysts were characterized using XRD, FE-SEM, VSM, TG-DTA, Raman spectroscopy. involved condensation reaction enolizable compounds with aldehyde, dimedone, ethyl cyanoacetate for tetrahydrobenzo[b]pyran, aromatic 4-hydroxycoumarin, malononitrile synthesis. was optimized different techniques such stirring, ultrasonication, microwave irradiation, irradiation demonstrating faster product separation high yield. homogeneity isolated analyzed by FT-IR,1H-13C-NMR, mass spectrometry. advantages this include its simplicity, eco-friendliness, cost-effectiveness, it also evades use toxic metals solvents. is easily through simple workup process recrystallization ethanol yields pure isolation.

Язык: Английский

Процитировано

0