Synthesis and characterization of functionalized nano NaY zeolite with metformin and use for the synthesis of 2-amino-4H-chromenes DOI
Niloofar Haghdadi, Sakineh Asghari, Ghasem Firouzzadeh Pasha

et al.

Research on Chemical Intermediates, Journal Year: 2024, Volume and Issue: 50(5), P. 1961 - 1992

Published: March 18, 2024

Language: Английский

Hercynite silica sulfuric acid: a novel inorganic sulfurous solid acid catalyst for one-pot cascade organic transformations DOI Creative Commons
Masoud Mohammadi, Arash Ghorbani‐Choghamarani

RSC Advances, Journal Year: 2022, Volume and Issue: 12(40), P. 26023 - 26041

Published: Jan. 1, 2022

Herein, we delignated the synthesis of a novel inorganic sulfurous magnetic solid acid catalyst by immobilization an extremely high content sulfuric functionalities on amorphous silica-modified hercynite nanomagnetic core-shell via simple method. Silica (SSA) modified nanocomposite (hercynite@SSA) combines excellent recoverability and stability characteristics (which can be regarded as ferro spinel with Fd3m space group cubic crystal structure) strong Brønsted properties -SO3H groups. This was found to efficient facile for bis(pyrazolyl)methanes two different one-pot multicomponent methodologies under green conditions. The hercynite@SSA shows catalytic activity reusability in ethanolic medium among materials. A plausible reaction mechanism is proposed this synthesis.

Language: Английский

Citations

40
Amine functionalized magnetic resorcinol formaldehyde as a green and reusable nanocatalyst for the Knoevenagel condensation DOI Creative Commons

Paria Dehghani,

Dawood Elhamifar, Shiva Kargar

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 22, 2025

Language: Английский

Citations

1
Development of a Silica-Organic Framework Ionic Solid Bronsted Acid Catalyst for the Synthesis of 2,4,5-trisubstituted Imidazole Derivatives DOI Open Access
Noor Abbas Alshook, H. D. Hanoon, Hayder Hamied Mihsen

et al.

Journal of the Turkish Chemical Society Section A Chemistry, Journal Year: 2025, Volume and Issue: 12(1), P. 1 - 14

Published: March 3, 2025

Heterogeneous Bronsted acid is one of the most promising compounds that can be used as a catalyst in chemical production, and certainly have positive impact on environment. This research includes preparation heterogeneous by using rice hulls starting material. The prepared was characterized FTIR, XRD, TGA, SEM-EDX, TEM, elemental analysis. FTIR results showed presence N-H S=O absorption bands within expected range acid. specific surface area determined Brunauer-Emmett-Teller (BET) nitrogen adsorption method 205.42 m2/g, average pore diameters are 3.69 nm, 2,4,5-Trisubstituted imidazole derivatives were reacting substituted aldehydes with benzil ammonium acetate solid catalyst. main advantages this safe, cheap, short reaction conditions. In addition, reused.

Language: Английский

Citations

1
A novel Hercynite‐supported tetradentate Schiff base complex of manganese catalyzed one‐pot annulation reactions DOI
Masoud Mohammadi, Arash Ghorbani‐Choghamarani

Applied Organometallic Chemistry, Journal Year: 2022, Volume and Issue: 36(12)

Published: Sept. 24, 2022

The present study is the first report on synthesis and catalytic performance of Hercynite nanoparticles capped with a novel Schiff base–manganese(II) complex brought from synthetic procedure. solid support catalyst were characterized using various analytical techniques. characterization results suggest excellent dispersibility, stability, high Mn content under surface, small size catalyst, which leads to activity selectivity. Moreover, proved be sustainable recyclable for rapid chromene‐ pyran‐annulated heterocycles ambient conditions. effect crucial parameters was investigated optimized. scope reaction extended aryl aldehydes keto–enol tautomeric pairs (2‐hydroxy‐1,4‐naphthoquinone or dimedone), corresponding 2‐amino‐3‐cyano‐4 H ‐chromene ‐pyran products obtained yield (82–99%) at low time (10–115 min). Significantly, indicated magnetic, cost‐effective, nontoxic properties, result in having recycling efficiency (5 cycles).

Language: Английский

Citations

34
Macrocyclic pseudo crown-ether- manganese (II) complex coated on nanomagnetic LDH- catalyzed Biginelli annulation reactions DOI
Farzaneh Ghobakhloo, Davood Azarifar, Masoud Mohammadi

et al.

Journal of Physics and Chemistry of Solids, Journal Year: 2023, Volume and Issue: 175, P. 111222 - 111222

Published: Jan. 7, 2023

Language: Английский

Citations

22
γ‐Fe2O3@Cu3Al‐LDH/HEPES a novel heterogeneous amphoteric catalyst for synthesis of annulated pyrazolo[3,4‐d]pyrimidines DOI
Farzaneh Ghobakhloo, Davood Azarifar, Masoud Mohammadi

et al.

Applied Organometallic Chemistry, Journal Year: 2022, Volume and Issue: 36(10)

Published: July 18, 2022

An efficient synthetic method for the heterogenization of bifunctional zwitterionic HEPES catalyst on LDH modified γ‐Fe 2 O 3 magnetic nanoparticles (MNPs) was developed to create a novel polar catalytic environment tandem catalysis. The efficiency resulted acid/base (γ‐Fe @Cu Al‐LDH/HEPES) investigated in Biginelli‐like synthesis biologically active pyrazolo[3,4‐d]pyrimidines via cyclocondensation 3‐methyl, 1‐phenyl‐H1‐pyrazole‐5‐ol with various aromatic aldehydes and urea derivatives mixture water ethanol (1:1) under reflux conditions. Besides, desired products were reached high conversions powerful reusability. Utilization simple mild reaction conditions, hybrid groups, short time, green safe solvent, performance good recyclability, easy purification products, magnetically work‐up make this methodology an interesting effective option Biginelli reaction.

Language: Английский

Citations

23
Immobilization of Ag and Pd over a novel amide based covalent organic framework (COF-BASU2) as a heterogeneous reusable catalyst to reduce nitroarenes DOI

Jamal Kouhdareh,

Hassan Keypour,

Sedigheh Alavinia

et al.

Inorganica Chimica Acta, Journal Year: 2022, Volume and Issue: 545, P. 121251 - 121251

Published: Oct. 20, 2022

Language: Английский

Citations

19
The synthesis of new polyhydroquinoline derivatives using nano-[Fe3O4@SiO2/N-propyl-1-(thiophene-2-yl) ethanimine][CoCl2] as a novel supported magnetite catalyst DOI

Atefeh Gorji,

Soheila Esmaili,

Ahmad Reza Moosavi‐Zare

et al.

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1314, P. 138797 - 138797

Published: May 29, 2024

Language: Английский

Citations

4
Magnetic BiFeO3 nanoparticles: a robust and efficient nanocatalyst for the green one-pot three-component synthesis of highly substituted 3,4-dihydropyrimidine-2(1H)-one/thione derivatives DOI Creative Commons

Safa Hanifi,

Mohammad G. Dekamin, Mohammad Eslami

et al.

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

Published: Sept. 27, 2024

Language: Английский

Citations

4
Introducing Fe3O4@SiO2@KCC-1@MPTMS@CuII catalytic applications for the green one-pot syntheses of 2-aryl(or heteroaryl)-2,3-dihydroquinazolin-4(1H)-ones and 9-aryl-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-diones DOI
Morteza Hasanpour Galehban, Behzad Zeynizadeh, Hossein Mousavi

et al.

Journal of Molecular Structure, Journal Year: 2022, Volume and Issue: 1271, P. 134017 - 134017

Published: Aug. 28, 2022

Language: Английский

Citations

17