Applications of Bio-Resource Based Sustainable Heterogeneous Pd-Nanocatalyst for Cross-Coupling and Michael Addition Reactions DOI
Md. Shaharul Islam, Shaheen M. Sarkar, Md Lutfor Rahman

et al.

Published: Jan. 1, 2023

The development of efficient and cost-effective catalysts from renewable sources is crucial for sustainable chemistry. Herein, we developed a bio-heterogeneous Pd-nanocatalyst (PdNc@PA), by incorporating palladium nanoparticles into biodegradable kenaf-cellulose modified with poly(amidoxime) ligands. catalyst has demonstrated remarkable stability exceptional catalytic performance in range cross-coupling including Mizoroki-Heck, Suzuki-Miyaura, Tamejiro-Hiyama reactions inactivated aryl chlorides, resulting high yields the desired coupling products. Additionally, PdNc@PA was also found to be effective Michael addition reactions, producing N, S, O-alkylated products yields. Furthermore, robustness recoverability, allowing it reused across successive cycles without significant loss activity. This property makes an excellent candidate large-scale industrial applications. incorporation resources offers environmentally conscious alternative traditional synthetic approaches. research highlights potential utilizing materials as supports, which could significantly diminish environmental impact waste production. Moreover, study demonstrates versatility proficient reusable diverse array organic reactions. These discoveries provide encouraging pathway towards economically viable suitable

Language: Английский

Gadolinium Schiff-base complex on nanocomposite of graphene oxide magnetic nanoparticles as a robust, reusable and chemoselective nanocatalyst in the C–C coupling reactions DOI
Bahman Tahmasbi,

Mitra Darabi,

Parisa Moradi

et al.

Polyhedron, Journal Year: 2024, Volume and Issue: 258, P. 117038 - 117038

Published: May 14, 2024

Language: Английский

Citations

17
Chemical modification of lettuce leaves using NaOH and EDTA: A brilliant biosorbent for the adsorption of heavy metal ions from aqueous solution DOI

Van Doan Nguyen,

Nguyen Thi Trang, Tuan A. Vu

et al.

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 71, P. 107202 - 107202

Published: Feb. 12, 2025

Language: Английский

Citations

3
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
Applications of bio-resource based sustainable heterogeneous Pd-Nanocatalyst for Cross-Coupling and Michael addition reactions DOI Creative Commons
Md. Shaharul Islam, Shaheen M. Sarkar, Lutfor Rahman

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 483, P. 149271 - 149271

Published: Feb. 3, 2024

The development of efficient and cost-effective catalysts from renewable sources is crucial for sustainable chemistry. Herein, we developed a bio-heterogeneous Pd-nanocatalyst (PdNc@PA) by incorporating palladium nanoparticles into biodegradable kenaf-cellulose modified with poly(amidoxime) ligands. catalyst has demonstrated remarkable stability exceptional catalytic performance in range cross-coupling including Mizoroki-Heck, Suzuki-Miyaura, Tamejiro-Hiyama reactions inactivated aryl chlorides resulting high yields the desired coupling products. Additionally, PdNc@PA was also found to be effective Michael addition producing N, S, O-alkylated products yields. Furthermore, robustness recoverability allowing it reused across successive cycles without significant loss activity. incorporation resources offers an environmentally conscious alternative traditional synthetic approaches. This research highlights potential utilizing materials as supports, which could significantly diminish environmental impact waste production. Moreover, this study demonstrates versatility proficient reusable diverse array organic reactions. These discoveries provide encouraging pathway towards economically viable suitable industrial applications.

Language: Английский

Citations

5
Synthesis of Sm‐TADDbBP@MCM‐41 as a Robust, Reusable, and Practical Nanocatalyst in the Homoselective [2 + 3] Cycloaddition Reaction DOI Open Access
Bahman Tahmasbi, Parisa Moradi, Fahimeh Mohammadi

et al.

Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: 39(1)

Published: Oct. 16, 2024

ABSTRACT Schiff‐base materials are known ligands for the coordination of metal ions and synthesis various stable useful complexes. Therefore, herein, a novel compound {2,2′‐((1E,11E)‐2,5,8,11‐tetra azadodeca‐1,11‐diene‐1,12‐diyl) bis (4‐bromophenol)} was introduced that formed from condensation triethylenetetramine (TETA) 5‐bromo‐2‐hydroxybenzaldehyde (5B2HB). This ligand labeled as TADDbBP. Besides, mesoporous MCM‐41 synthesized using tetraethyl orthosilicate (TEOS), hydrolyzing cetyltrimethylammonium bromide (CTAB) NaOH solution (2 M), followed by calcination at 550 °C, further, silanol sites on MCM‐41's surface were modified 3‐chloropropyltriethoxysilane (3Cl‐PTES), which 3‐Cl‐Pr@MCM‐41. In next step, TADDbBP (as ligand) grafted 3‐Cl‐Pr@MCM‐41, TADDbBP@MCM‐41, it coordinated with samarium (which Sm‐TADDbBP@MCM‐41 nanocatalyst) Sm (CH 3 COO) . is first report production nanocatalyst, this nanocatalyst characterized TEM, SEM, EDX, elemental mapping, BET method, ICP, XRD, TGA techniques. final catalytic performance has been checked in homo‐selective producing tetrazoles through [2 + 3] cycloaddition benzonitriles sodium azide (NaN ) PEG‐400 available, nontoxic, green, safe solvent. provides excellent selectivity tetrazoles. addition, can be separated recycled several cycles without significant reactivation or leaching.

Language: Английский

Citations

4
Alginate-aminoclay/CuO nanocomposite beads: A sustainable and green approach for catalytic reduction of toxic nitroaromatic compounds DOI

Sindhu I Sanakal,

Anubhab Das, Anashwara Babu

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115398 - 115398

Published: Jan. 1, 2025

Language: Английский

Citations

0
A green Heck reaction protocol towards trisubstituted alkenes, versatile pharmaceutical intermediates DOI Creative Commons
Giacomo Rossino, Giorgio Marrubini, Margherita Brindisi

et al.

Frontiers in Chemistry, Journal Year: 2024, Volume and Issue: 12

Published: July 10, 2024

The Heck reaction is widely employed to build a variety of biologically relevant scaffolds and has been successfully implemented in the production active pharmaceutical ingredients (APIs). Typically, with terminal alkenes gives high yields stereoselectivity toward

Language: Английский

Citations

3
Supramolecular Cu(ii) nanoparticles supported on a functionalized chitosan containing urea and thiourea bridges as a recoverable nanocatalyst for efficient synthesis of 1H-tetrazoles DOI Creative Commons
Shirin Bondarian, Mohammad G. Dekamin, Ehsan Valiey

et al.

RSC Advances, Journal Year: 2023, Volume and Issue: 13(39), P. 27088 - 27105

Published: Jan. 1, 2023

A cost-effective and convenient method for supporting of Cu(ii) nanoparticles on a modified chitosan backbone containing urea thiourea bridges using thiosemicarbazide (TS), pyromellitic dianhydride (PMDA) toluene-2,4-diisocyanate (TDI) linkers was designed. The prepared supramolecular (CS-TDI-PMDA-TS-Cu(ii)) nanocomposite characterized by Fourier-transform infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FESEM), thermogravimetry/differential thermogravimetry analysis (TGA/DTA), energy-dispersive X-ray spectroscopy (EDS), EDS elemental mapping diffraction (XRD). obtained CS-TDI-PMDA-TS-Cu(ii) nanomaterial demonstrated to act as multifunctional nanocatalyst promoting multicomponent cascade Knoevenagel condensation/click 1,3-dipolar azide-nitrile cycloaddition reactions very efficiently between aromatic aldehydes, sodium azide malononitrile under solvent-free conditions affording the corresponding (E)-2-(1H-tetrazole-5-yl)-3-arylacrylenenitrile derivatives. Low catalyst loading, working short reaction time well easy preparation recycling, reuse five consecutive cycles without considerable decrease in its catalytic efficiency make it suitable candidate promoted Cu species.

Language: Английский

Citations

7
A supramolecular magnetic and multifunctional Titriplex V-grafted chitosan organocatalyst for the synthesis of acridine-1,8-diones and 2-amino-3-cyano-4H-pyran derivatives DOI Creative Commons

Najmeh Hassanzadeh,

Mohammad G. Dekamin, Ehsan Valiey

et al.

Nanoscale Advances, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

In this research, a new supramolecular magnetic modified chitosan, namely, Fe

Language: Английский

Citations

1
Magnetic DL-methionine grafted to chitosan by EDTA linker nanomaterial: a highly efficient multifunctional organocatalyst for the synthesis of highly substituted imidazole derivatives under green conditions DOI
Mohammad Dohendou, Mohammad G. Dekamin,

Zahra Dehnamaki

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: July 18, 2024

Abstract In this research, a novel protocol for the synthesis of imidazole derivatives with various substitutions has been investigated in presence new and highly effective magnetic decorated DL-methionine amino acid grafted onto chitosan backbone by using EDTA linker (CS − MET@Fe3O4) under green chemistry conditions. The CS MET@Fe3O4 nanocomposite was properly characterized FTIR, EDX, XRD, FESEM, TGA VSM spectroscopic, microscopic, or analytical methods. used as efficient heterogeneous organocatalyst wide range three- four-substituted derivatives, an important pharmaceutical scaffold, through multicomponent reactioins (MCRs) strategy. multifunctional nanocatalyst exhibited high catalytic activity, selectivity, stability to promote reactions benzoin benzyl, different aldehyde ammonim acetate well aromatic aliphatic amine EtOH solvent. Key advantages present are excellent yields, use low loading renewable, bio-based biodegredable chitosan- acid-based nanomaterial, simple procedure preparation nanomaterial imoidazole derivatives. addition, catalyst's properties, including its properties appropriate surface area characteristicscontribute performance. Fuerthermore, can be up six cycles only slight decrease activity.

Language: Английский

Citations

0