A novel recyclable hydrolyzed nanomagnetic copolymer catalyst for green, and one-pot synthesis of tetrahydrobenzo[b]pyrans

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

Published: Dec. 28, 2024

Language: Английский

---

Fe3O4@HA-Cu(OAc)2 nanocomposite as a nanomagnetic water-compatible catalyst for efficient synthesis of 1,2,3-triazoles in water

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

Published: Jan. 27, 2025

A new humic acid-based nanomagnetic copper(II) composite was prepared and used as an eco-friendly recoverable catalyst for synthesizing 1,4-disubstituted 1,2,3-triazoles. The synthesis done via the three-component click reaction of alkyl halide, sodium azide, terminal alkyne with good to excellent yield. simple magnetic copper acetate composite, Fe3O4@HA-Cu(OAc)2, using acid characterized by SEM, TEM, XRD, EDX, EDS-mapping, VSM, TGA, AAS, FT-IR. showed high catalytic potential in a one-pot Fe3O4@HA-Cu(OAc)2 demonstrated efficiency, stability, compatibility oxygen/water recyclable copper(II), cost-effectiveness. easily recovered external field, therefore, time energy were saved no filtration or decantation technique needed. Due dispersibility water, utilized highly efficient triazoles.

Language: Английский

---

Recent Advances in Functionalization of Graphene Oxide and Its Role in Catalytic Organic Transformations: A Comprehensive Review (2018–2024)

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(5)

Published: Feb. 1, 2025

Abstract Heterogeneous catalysis has become a key methodology for the sustainable synthesis of organic reactions and heterocyclic compounds. Among various catalysts, graphene oxide (GO) its functionalized derivatives (fGO) stand out due to their high surface area, mechanical strength, tunable electronic properties. This review provides detailed overview role GO in catalysis, emphasizing structural features, functionalization strategies, catalytic applications. Specific such as oxidation, reduction, esterification, are discussed, with focus on superior performance (fGO). Challenges like stability aggregation explored, alongside potential solutions through chemical, thermal, electrochemical functionalization. The also examines future directions, highlighting (GO's) versatility emerging applications energy storage, sensors, biomedical devices. By summarizing current advancements addressing ongoing challenges, this underscores fGO revolutionize processes contribute chemistry.

Language: Английский

---

Novel Schiff Base Functionalized Cu(II) onto L-dopa/Al2O3-Fe3O4 as an Efficient Catalyst for One Pot Synthesis of 1,4-Disubstituted-1,2,3-Triazoles using Boronic Acids in Benign Reaction Media

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Language: Английский

---

Polyoxometalate on functionalized graphene sheets as a hybrid catalyst for efficient synthesis of benzimidazoles

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

Published: March 6, 2025

In this work, graphene oxide (GO) nanoparticles were synthesized and subsequently modified using 3-aminopropyltrimethoxysilane (APTMS). An Anderson-type polyoxometalate [(C4H9)4N]2[CrMo6O18(OH)6] was then immobilized on the surface of nanoparticles. The obtained catalyst characterized Fourier-transform infrared spectroscopy (FT-IR), energy-dispersive X-ray (EDS), inductively coupled plasma (ICP), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), Raman spectroscopy, diffraction (XRD). catalytic performance recyclable hybrid evaluated for synthesis benzimidazole derivatives at 75 °C under solvent-based conditions. demonstrated easy separation could be successfully reused least six times with only a slight reduction in yield desired product. Leaching recovery tests, along FT-IR analysis, confirmed high stability catalytically active species heterogeneous nature catalyst.

Language: Английский

---

Construction of Fe3O4@SiO2-ABA-Amide/BTH-Cu(II) nanocomposite as a reusable magnetic catalyst for reduction of nitroarenes and nitriles to amines

Transition Metal Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Language: Английский

---

Construction of novel Mg Fe2O4/MgO composite: A high performer Photocatalyst for the cyclization of 1,3,4-oxadiazoles under Sunlight Irradiation

Journal of the Indian Chemical Society, Journal Year: 2025, Volume and Issue: unknown, P. 101688 - 101688

Published: March 1, 2025

Language: Английский

---

Fe3O4-Supported Triazine-Palladium(0): An Efficient and Recyclable Nanocatalyst for Suzuki-Miyaura and Denitrogenative Cross‑Coupling

Journal of Cluster Science, Journal Year: 2025, Volume and Issue: 36(2)

Published: March 5, 2025

Language: Английский

---

Synthesis and Characterization of Fe₃O₄@L‐Arginine Magnetic Nanocatalyst Immobilized on Nickel Oxide for One‐Pot Ultrasound‐Assisted Synthesis of 3,4‐Dihydropyrimidin‐2(1H)‐ones

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(14)

Published: April 1, 2025

Abstract In this work, we synthesized a heterogeneous magnetic nanocatalyst using iron oxide (Fe 3 O 4 ) surface‐modified with L‐arginine@NiO @L‐Arg@NiO). Several characterization techniques such as fourier transform infrared (FT‐IR), field emission scanning electron microscopy (FE‐SEM), X‐ray diffraction (XRD), high‐resolution transmission (HR‐TEM), dispersion spectra (EDS) and thermogravimetric analysis (TGA) were used to extensively analyze its structural morphological properties. The Fe @L‐Arg@NiO was subjected the one‐pot multi‐component synthesis of 3,4‐dihydropyrimidin‐2‐(1 H )‐ones derivatives under solvent‐free conditions. It determined that demonstrating desired product 85%–95% yield, in shorter reaction time. Furthermore, simple work‐up, reusability catalyst up five cycles sustainability are characteristic features environment friendly protocol.

Language: Английский

---

Cu nanoparticles supported on tannic acid functionalized magnetic Fe3O4 NPs and the relevant catalytic performance in the synthesis of 1-substituted-1H-tetrazoles

Journal of Organometallic Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 123676 - 123676

Published: April 1, 2025

Language: Английский

---