Design and characterization of an urea-bridged PMO supporting Cu(II) nanoparticles as highly efficient heterogeneous catalyst for synthesis of tetrazole derivatives DOI Creative Commons
Ehsan Valiey, Mohammad G. Dekamin

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: Oct. 28, 2022

Abstract In this work, a new periodic mesoporous organosilica with urea-bridges produced by the reaction of (3-aminopropyl)triethoxysilane and toluene-2,4-diisocyanate (APS-TDU-PMO) is introduced. The obtained APS-TDU-PMO was found to be an appropriate support for loading Cu(II) nanoparticles afford supramolecular Cu@APS-TDU-PMO nanocomposite. Uniformity mesoporosity both synthesized nanomaterials including were proved different spectroscopic, microscopic or analytical techniques FTIR, EDX, XRD, FESEM, TEM, BET, TGA DTA. Furthermore, prepared nanomaterial also used, as heterogeneous recyclable catalyst, synthesis tetrazole derivatives through cascade condensation, concerted cycloaddition tautomerization reactions. Indeed, main advantages its simple preparation high catalytic activity well proper surface area which enable it work under solvent-free conditions. Also, introduced catalyst showed good stability reusability six consecutive runs address more green chemistry principles.

Language: Английский

Palladium doped PDA-coated hercynite as a highly efficient catalyst for mild hydrogenation of nitroareness DOI Creative Commons

Somaye Beheshti,

Alireza Motavalizadehkakhky, Rahele Zhiani

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: May 25, 2024

Hercynite magnetic nanoparticles were produced through the co-precipitation of ferrous and aluminum cations. The surface hercynite was respectively coated with silica, 2,4,6-trichloro-1,3,5-triazine, 1H-pyrazole-3,5-dicarboxylic acid to provide a suitable substrate for Pd(II) loading, furnishing Pd@Her-TCT-PDA. Subsequently, introduced reduced Pd(0) using NaBH

Language: Английский

Citations

3
Recent Advances in the Catalytic Applications of Tin Dioxide-Based Materials in the Synthesis of Bioactive Heterocyclic Compounds DOI Creative Commons

Bhaskarjyoti Borah,

Sushmita Banerjee, Bharat Kumar Allam

et al.

Tetrahedron Green Chem, Journal Year: 2024, Volume and Issue: 4, P. 100048 - 100048

Published: Dec. 1, 2024

Metal oxides are versatile catalysts in organic synthesis, exhibiting diverse properties such as acidity, basicity, redox behaviour, and stability. Among these, tin dioxide (SnO₂) stands out for its resilience durability, making it a preferred catalyst. The reduced ionic character high oxidation state (+4) of contribute to heightened acidity. Tin based materials have gained significant attention heterocycle cross-coupling, decarboxylation, ring-opening ring-closing reactions, biodiesel glycerol transformations. Additionally, SnO₂-based also employed photocatalysts photo-electrocatalysts.

Language: Английский

Citations

3
A decade of synthesis of N-heterocyclic derivatives via magnetically retrievable Fe3O4@SiO2@Cu(II) nanocatalysts: A review (2013-present) DOI

Akta Soni,

Parveen Kumar, Vijesh Tomar

et al.

Synthetic Communications, Journal Year: 2023, Volume and Issue: 53(18), P. 1469 - 1505

Published: June 28, 2023

Medicinal chemistry and synthetic organic rely primarily on C-N bonds for their structures because a variety of biologically active compounds, including natural products molecules, contain N-heterocyclic as subunits, they have been assigned privileged position in drug development due to improved solubility ability form salts, both which contribute oral absorption bio-availability. In recent years, the copper-catalyzed cross-coupling reactions progressed rapidly with inexpensive, readily available, insensitive air, low-toxicity copper catalysts. The coupling strategy has used make N-heterocycles, wide range applications investigated excellent functional group tolerance. current review explores direct bond formation cyclization approaches fabricate triazole, tetrazole, various other derivatives that are catalyzed by magnetically retrievable (II)-impregnated silica-coated iron oxide nanocatalysts.

Language: Английский

Citations

8
The preparation, characterization and catalytic activity of porous tragacanth gum -g-poly (p-styrene sulfonamide-co-acrylamide) DOI

Mahtab Yaghubzadeh,

Sedigheh Alavinia,

Ramin Ghorbani‐Vaghei

et al.

Journal of Molecular Structure, Journal Year: 2023, Volume and Issue: 1293, P. 136265 - 136265

Published: July 28, 2023

Language: Английский

Citations

8
Design and characterization of an urea-bridged PMO supporting Cu(II) nanoparticles as highly efficient heterogeneous catalyst for synthesis of tetrazole derivatives DOI Creative Commons
Ehsan Valiey, Mohammad G. Dekamin

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: Oct. 28, 2022

Abstract In this work, a new periodic mesoporous organosilica with urea-bridges produced by the reaction of (3-aminopropyl)triethoxysilane and toluene-2,4-diisocyanate (APS-TDU-PMO) is introduced. The obtained APS-TDU-PMO was found to be an appropriate support for loading Cu(II) nanoparticles afford supramolecular Cu@APS-TDU-PMO nanocomposite. Uniformity mesoporosity both synthesized nanomaterials including were proved different spectroscopic, microscopic or analytical techniques FTIR, EDX, XRD, FESEM, TEM, BET, TGA DTA. Furthermore, prepared nanomaterial also used, as heterogeneous recyclable catalyst, synthesis tetrazole derivatives through cascade condensation, concerted cycloaddition tautomerization reactions. Indeed, main advantages its simple preparation high catalytic activity well proper surface area which enable it work under solvent-free conditions. Also, introduced catalyst showed good stability reusability six consecutive runs address more green chemistry principles.

Language: Английский

Citations

13