Hyperbranched 5-sulfosalicylic acid-TDI-chitosan decorated by Fe3O4 nanoparticles: a highly efficient solid acid organocatalyst for the synthesis of quinazoline derivatives under green conditions DOI Creative Commons

Reyhaneh Peyvasteh,

Mohammad G. Dekamin, Ehsan Valiey

et al.

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: May 30, 2023

Abstract In this research, a new magnetic decorated hyperbranched chitosan by grafting of 5-sulfosalicylic acid using toluene-2,4-diisocyanate linker (CS-TDI-SSA-Fe3O4) was designed and prepared conveniently. The obtained biopolymeric nanomaterial properly characterized FT-IR, EDX XRD, FESEM, TGA VSM spectroscopic, microscopic, or analytical methods. supramolecular CS-TDI-SSA-Fe3O4 nanocomposite investigated, as heterogeneous solid acidic organocatalyst, to promote three-component synthesis 2,3-dihydroquinazoline-4(1H)-one derivatives under green chemistry conditions. nanocatalyst demonstraed act highly efficient for the various quinazoline derivatives, an important pharmaceutical scaffold, through multicomponent strategy. reaction proceeds very well in presence EtOH afford corresponding high excellent yields. Key advantages present protocol are use renewable biodegredable simple procedure preparation hybrid material. Furthermore, catalyst can be used at least five times with slight decrease its catalytic activity.

Language: Английский

Facile synthesis of chitosan-derived sulfonated solid acid catalysts for realizing highly effective production of biodiesel DOI

Baohong Zheng,

Long Chen,

Lijuan He

et al.

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 210, P. 118058 - 118058

Published: Jan. 23, 2024

Language: Английский

Citations

31
Fe3O4/SiO2 decorated trimesic acid-melamine nanocomposite: a reusable supramolecular organocatalyst for efficient multicomponent synthesis of imidazole derivatives DOI Creative Commons

Babak Fattahi,

Mohammad G. Dekamin

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Jan. 9, 2023

Abstract This article describes supramolecular Fe 3 O 4 /SiO 2 decorated trimesic acid-melamine (Fe -TMA-Me) nanocomposite that can be prepared with features combine properties of different materials to fabricate a structurally unique hybrid material. In particular, we have focused on design, synthesis and evaluation heterogeneous magnetic organocatalyst containing acidic functional-groups for the biologically important imidazole derivatives in good excellent yields. The introduced -TMA-Me nanomaterial was characterized by techniques such as FTIR, XRD, EDX, FESEM, TEM, TGA DTA. As noteworthy point, catalytic system recycled reused more than seven consecutive runs while its high activity remains under optimized conditions.

Language: Английский

Citations

26
Engineered MXene-polymer composites for water remediation: Promises, challenges and future perspective DOI
Roham Ghanbari, Ehsan Nazarzadeh Zare‬

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 518, P. 216089 - 216089

Published: July 16, 2024

Language: Английский

Citations

15
Ultrasound-Promoted preparation and application of novel bifunctional core/shell Fe3O4@SiO2@PTS-APG as a robust catalyst in the expeditious synthesis of Hantzsch esters DOI Creative Commons

Peyman Shakib,

Mohammad G. Dekamin, Ehsan Valiey

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: May 17, 2023

In this work, D-(-)-α-phenylglycine (APG)-functionalized magnetic nanocatalyst (Fe3O4@SiO2@PTS-APG) was designed and successfully prepared in order to implement the principles of green chemistry for synthesis polyhydroquinoline (PHQ) 1,4-dihydropyridine (1,4-DHP) derivatives under ultrasonic irradiation EtOH. After preparing nanocatalyst, its structure confirmed by different spectroscopic methods or techniques including Fourier transform infrared (FTIR) spectroscopy, energy-dispersive X-ray spectroscopy (EDS), field emission scanning electron microscopy (FESEM), diffraction (XRD), vibrating sample magnetometer (VSM) thermal gravimetric analysis (TGA). The performance Fe3O4@SiO2@PTS-APG nanomaterial, as a heterogeneous catalyst Hantzsch condensation, examined various conditions. yield products controlled conditions reach more than 84% just 10 min, which indicates high along with synergistic effect irradiation. identified melting point well FTIR 1H NMR methods. is easily from commercially available, lower toxic thermally stable precursors through cost-effective, highly efficient environmentally friendly procedure. advantages method include simplicity operation, reaction mild conditions, use an benign source, obtaining pure efficiency short times without using tedious path, all them address important principles. Finally, reasonable mechanism proposed preparation presence bifunctional nanocatalyst.

Language: Английский

Citations

19
Pd@l-asparagine–EDTA–chitosan: a highly effective and reusable bio-based and biodegradable catalyst for the Heck cross-coupling reaction under mild conditions DOI Creative Commons
Mohammad Dohendou, Mohammad G. Dekamin,

Danial Namaki

et al.

Nanoscale Advances, Journal Year: 2023, Volume and Issue: 5(9), P. 2621 - 2638

Published: Jan. 1, 2023

A novel supramolecular Pd( ii ) catalyst supported on chitosan grafted by l -asparagine using EDTA linker was prepared and successfully employed in the Heck cross-coupling reaction to afford corresponding cinnamic acids good excellent yields.

Language: Английский

Citations

17
Magnetic decorated 5-sulfosalicylic acid grafted to chitosan: A solid acid organocatalyst for green synthesis of quinazoline derivatives DOI Creative Commons

Reyhaneh Peyvasteh Sourkouhi,

Mohammad G. Dekamin, Ehsan Valiey

et al.

Carbohydrate Polymer Technologies and Applications, Journal Year: 2024, Volume and Issue: 7, P. 100420 - 100420

Published: Jan. 3, 2024

In this research, a new magnetically decorated multifunctional solid acid was designed and prepared conveniently by grafting of 5-sulfosalicylic (SSA) onto the chitosan (CS) backbone using toluene-2,4-diisocyanate (TDI) linker for first time. The obtained magnetic biopolymeric nanomaterial, CS-TDI-SSA-Fe3O4, properly characterized spectroscopic, microscopic, or analytical methods including FT-IR, EDX, XRD, BET, FESEM, TGA, VSM. supramolecular CS-TDI-SSA-Fe3O4 nanocomposite investigated, as heterogeneous organocatalyst, to promote three-component synthesis 2,3-dihydroquinazoline-4(1H)-one derivatives under green conditions. acidic nanocatalyst demonstrated highly efficient activity wide range quinazoline derivatives, an important pharmaceutical scaffold, through multicomponent strategy. reaction proceeds very well in presence EtOH afford corresponding (DHQ) high excellent yields. key advantages present protocol are use novel, renewable, biopolymeric, biodegradable simple procedure preparation hybrid material. Furthermore, catalyst can be used at least five times DHQ with slight decrease its catalytic activity.

Language: Английский

Citations

6
Furo, Pyrano, and Pyrido[2,3‐d]Pyrimidines: A Comprehensive Review of Synthesis and Medicinal Applications DOI
Amin Rezaeifard, Mohammad Bakherad, Latifeh Navidpour

et al.

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(10)

Published: March 7, 2024

Abstract Due to their extensive applications in pharmaceuticals and natural substances, organic synthesis heterocyclic compounds have been at the forefront of research for many years. Pyrimidine is one that various derivatives with promising biological pharmacological properties. This review article covers effects pyrimidine derivatives, such as pyrano[2,3‐ d ]pyrimidines, pyrido[2,3‐ furo[2,3‐ ]pyrimidines. The discussed this a wide range activities. Recent advances green chemistry led development eco‐friendly synthetic methods producing these bioactive heterocycles. aims present provide new opportunities chemists develop potent nitrogen‐ oxygen‐containing heterocycles future applications. highlights examples successful syntheses fields antibacterial, antifungal, anticancer, enzyme inhibition, antiviral research.

Language: Английский

Citations

5
Supramolecular Pd@methioine-EDTA-chitosan nanocomposite: an effective and recyclable bio-based and eco-friendly catalyst for the green Heck cross-coupling reaction under mild conditions DOI Creative Commons
Mohammad Dohendou, Mohammad G. Dekamin,

Danial Namaki

et al.

Nanoscale Advances, Journal Year: 2023, Volume and Issue: 5(13), P. 3463 - 3484

Published: Jan. 1, 2023

A new supramolecular Pd( ii ) supported on modified chitosan by dl -methionine using an EDTA linker is prepared. The obtained low-loaded catalyst promotes the HCR affording good to excellent yields and proper reusability.

Language: Английский

Citations

12
Fabrication of MXene-based membranes and their application in per- and polyfluorinated substances removal: Comparison with commercial membranes, challenges, and future improvements DOI
Roham Ghanbari, Di Wu, Philippe M. Heynderickx

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216253 - 216253

Published: Oct. 29, 2024

Language: Английский

Citations

4
Hydrothermal Synthesis of Sulfuric Acid-Mediated Yellow Carbon Dots and it Applications in Fluorescent Ink and Cell Imaging DOI
Jiaying Yan, Ziyi Zhang, Yuhang Zhou

et al.

Published: Jan. 1, 2025

In this work, a series of sulfuric acid-mediated carbon dots (CDs) with different sulfur content were facile synthesized by the hydrothermal reaction from contaminant reactive brilliant blue (RB5). The S-CDs (S-CD-4) are selected due to their excellent optical properties in water, and detailed structure information characterized XRD, Raman spectrum, FTIR spectra, XPS. morphology thickness further TEM (HRTEM, average diameter around 3.45 nm), AFM (7-9 layers). Optical properties, photo stability solvent effect in-depth investigated absorption fluorescence emission spectra. Notably, photoluminescence is excitation-wavelength dependent, wavelengths tunable 670 nm 707 nm. maximum fluorescent peak under 680 excitation large Stokes shift up 227 DMF, exhibiting moderate intensity 19.0%. relationship between amount CDs wavelength discussed DFT calculation. Finally, successfully applied ink cell imaging.

Language: Английский

Citations

0