Application of Cyclohexane‐1,3‐diones in the Synthesis of Six‐Membered Nitrogen‐Containing Heterocycles DOI
Dharminder Sharma, Manish Kumar, Sandeep Kumar

et al.

ChemistrySelect, Journal Year: 2022, Volume and Issue: 7(12)

Published: March 23, 2022

Abstract Cyclohexane‐1,3‐dione and its derivatives are imperative precursors in synthetic organic chemistry as they useful intermediates for the synthesis of a wide range biologically active natural products, heterocycles pharmaceuticals. Recently, cyclohexane‐1,3‐diones have been used varied array six‐membered nitrogen‐containing presence aldehydes, acetoacetic esters, malononitrile, chalcones, coumarins, acetophenones, amino acids, amines, etc. under catalytic non‐catalytic conditions. Newest studies on importance these motivated us to compile all recently developed processes which include fabrication nitrogen heterocycles. This article is mainly focused efficient N ‐heterocycles i. e. 1,4‐dihydropyridine, acridine‐1,8‐diones, benzoacridinones, quinolones pyridine from one substrates, published last ten years.

Language: Английский

Functionalized hybrid magnetic catalytic systems on micro- and nanoscale utilized in organic synthesis and degradation of dyes DOI Creative Commons
Fatemeh Ganjali,

Amir Kashtiaray,

Simindokht Zarei-Shokat

et al.

Nanoscale Advances, Journal Year: 2022, Volume and Issue: 4(5), P. 1263 - 1307

Published: Jan. 1, 2022

A comprehensive survey is presented to review the recent advances of functionalized hybrid magnetic catalytic systems for organic reactions and degradation dyes.

Language: Английский

Citations

49
Chitosan-EDTA-Cellulose network as a green, recyclable and multifunctional biopolymeric organocatalyst for the one-pot synthesis of 2-amino-4H-pyran derivatives DOI Creative Commons
Negin Rostami, Mohammad G. Dekamin, Ehsan Valiey

et al.

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

Published: May 23, 2022

Abstract In this research, cellulose grafted to chitosan by EDTA (Cs-EDTA-Cell) bio-based material is reported and characterized a series of various methods techniques such as FTIR, DRS-UV–Vis, TGA, FESEM, XRD EDX analysis. fact, the Cs-EDTA-Cell network more thermally stable than pristine or chitosan. There plenty both acidic basic sites on surface biodegradable network, multifunctional organocatalyst, proceed three-component synthesis 2-amino-4 H -pyran derivatives at room temperature in EtOH. The nanocatalyst can be easily recovered from reaction mixture using filtration reused for least five times without significant decrease its catalytic activity. general, heterogeneous catalyst, demonstrated excellent activity an environmentally-benign solvent afford desired products short required simple experimental work-up procedure compared many protocols similar systems.

Language: Английский

Citations

41
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
Bifunctional Pt/Au Janus electrocatalysts for simultaneous oxidation/reduction of furfural with bipolar electrochemistry DOI
Marisa Ketkaew,

Sunpet Assavapanumat,

Sorasak Klinyod

et al.

Chemical Communications, Journal Year: 2022, Volume and Issue: 58(27), P. 4312 - 4315

Published: Jan. 1, 2022

The sustainable conversion of biomass-derived compounds into high added-value products is a very important contemporary scientific challenge. In this context, we report here the simultaneous electro-oxidation/-reduction compound in one-pot approach using bipolar electrochemistry. Bifunctional Pt/Au Janus electrocatalysts are employed for selective furfural both, furfuryl alcohol and furoic acid, which can't be achieved when non-Janus particles. results emphasize benefits electrochemistry frame electrosynthesis processes.

Language: Английский

Citations

25
Synthesis of (E)-2-(1H-tetrazole-5-yl)-3-phenylacrylenenitrile derivatives catalyzed by new ZnO nanoparticles embedded in a thermally stable magnetic periodic mesoporous organosilica under green conditions DOI Creative Commons

Sajedeh Safapoor,

Mohammad G. Dekamin,

Arezoo Akbari

et al.

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

Published: June 24, 2022

Abstract ZnO nanoparticles embedded in a magnetic isocyanurate-based periodic mesoporous organosilica (Fe 3 O 4 @PMO–ICS–ZnO) were prepared through modified environmentally-benign procedure for the first time and properly characterized by appropriate spectroscopic analytical methods or techniques used materials. The new thermally stable Fe @PMO–ICS–ZnO nanomaterial with proper active sites surface area as well uniform particle size was investigated synthesis of medicinally important tetrazole derivatives cascade condensation concerted 1,3-cycloaddition reactions representative Click Chemistry concept. desired 5-substituted-1 H -tetrazole smoothly high to quantitative yields good purity EtOH under reflux conditions. Low catalyst loading, short reaction use green solvents such water instead carcinogenic DMF easy separation recyclability at least five consecutive runs without significant loss its activity are notable advantages this protocol compared other recent introduced procedures.

Language: Английский

Citations

25
Sulfamic acid pyromellitic diamide-functionalized MCM-41 as a multifunctional hybrid catalyst for melting-assisted solvent-free synthesis of bioactive 3,4-dihydropyrimidin-2-(1H)-ones DOI Creative Commons
Ehsan Valiey, Mohammad G. Dekamin, Zahra Alirezvani

et al.

Scientific Reports, Journal Year: 2021, Volume and Issue: 11(1)

Published: May 27, 2021

Abstract This study introduces a practical approach to fabricate novel hybrid acidic catalyst, namely sulfamic acid pyromellitic diamide-functionalized MCM-41 (MCM-41-APS-PMDA-NHSO 3 H). Various techniques such as FTIR, TGA, XRD, BET, FESEM, and EDX were used confirm its structural characteristics. The efficiency of the new MCM-41-APS-PMDA-NHSO H organosilica nanomaterials, heterogenous nanocatalyst, was examined in synthesis biologically active 3,4-dihydropyrimidin-2-(1 )-one derivatives under solvent-free conditions. It found that nanoporous H, demonstrating nature high surface area, can activate all Biginelli reaction components afford desired )-ones conditions short time. Furthermore, easy quick isolation introduced from mixture well reusability with negligible loss activity at least five consecutive runs are another advantages this green protocol.

Language: Английский

Citations

30
Dendrons containing boric acid and 1,3,5-tris(2-hydroxyethyl)isocyanurate covalently attached to silica-coated magnetite for the expeditious synthesis of Hantzsch esters DOI Creative Commons
Mahsa Sam, Mohammad G. Dekamin, Zahra Alirezvani

et al.

Scientific Reports, Journal Year: 2021, Volume and Issue: 11(1)

Published: Jan. 27, 2021

Abstract A new multifunctional dendritic nanocatalyst containing boric acid and 1,3,5-tris(2-hydroxyethyl)isocyanurate covalently attached to core–shell silica-coated magnetite (Fe 3 O 4 @SiO 2 @PTS-THEIC-(CH ) OB(OH) was designed properly characterized by different spectroscopic or microscopic methods as well analytical techniques used for mesoporous materials. It found that the combination of both aromatic π–π stacking boron–oxygen ligand interactions affords supramolecular arrays dendrons. Furthermore, use makes this catalyst a good choice, from corrosion, recyclability cost points view. The catalytic activity Fe , an efficient magnetically recoverable catalyst, investigated synthesis polyhydroacridines (PHAs) polyhydroquinolines (PHQs) via one-pot multicomponent reactions dimedone and/or ethyl acetoacetate, aldehydes ammonium acetate in EtOH under reflux conditions. Very low loading high quantitative yields desired PHAs PHQs products, short reaction times, wide scope substrates, eliminating any toxic heavy metals corrosive reagents modification simple work-up procedure are remarkable advantages green protocol. An additional advantage magnetic nanoparticles is its ability be separated recycled easily mixture with minimal efforts six subsequent runs without significant loss activity. This can extended two- three-dimensional covalent organic frameworks applications.

Language: Английский

Citations

28
Recent advanced development of metal-loaded mesoporous organosilicas as catalytic nanoreactors DOI Creative Commons
Yucang Liang

Nanoscale Advances, Journal Year: 2021, Volume and Issue: 3(24), P. 6827 - 6868

Published: Jan. 1, 2021

Ordered periodic mesoporous organosilicas have been widely applied in adsorption/separation/sensor technologies and the fields of biomedicine/biotechnology as well catalysis. Crucially, surface modification with functional groups metal complexes or nanoparticle loading has ensured high efficacy efficiency. This review will highlight current state design catalytic application transition metal-loaded organosilica nanoreactors. It outline prominent synthesis approaches for grafting complexes, salt adsorption

Language: Английский

Citations

27
l-Asparagine–EDTA–amide silica-coated MNPs: a highly efficient and nano-ordered multifunctional core–shell organocatalyst for green synthesis of 3,4-dihydropyrimidin-2(1H)-one compounds DOI Creative Commons
Negin Rostami, Mohammad G. Dekamin, Ehsan Valiey

et al.

RSC Advances, Journal Year: 2022, Volume and Issue: 12(34), P. 21742 - 21759

Published: Jan. 1, 2022

New l -asparagine grafted on the 3-aminopropyl-modified Fe 3 O 4 @SiO 2 core–shell magnetic nanoparticles using EDTA linker was prepared and characterized. The nanomaterial promotes synthesis of several 3,4-dihydropyrimidin-2(1 H )-one derivatives under solvent-free conditions.

Language: Английский

Citations

20
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