Postsynthetic Modification of Amine-Functionalized MIL-101(Cr) Metal–Organic Frameworks with an EDTA–Zn(II) Complex as an Effective Heterogeneous Catalyst for Hantzsch Synthesis of Polyhydroquinolines

ACS Omega, Journal Year: 2024, Volume and Issue: 9(26), P. 28114 - 28128

Published: June 21, 2024

The present work aims at preparing the EDTA–Zn(II) complex─supported on amine-functionalized MIL-101(Cr) MOF─as a new and effective heterogenized catalyst. optimization of hydrothermal process shows that 120 °C is best condition to grow MIL-101(Cr)–NH2 MOF crystals. Moreover, regarding use postsynthetic modification (PSM) method, hexadentate EDTA was grafted this support via simple aminolysis before further coordinating it with Zn ions create corresponding Zn(II) catalytic complex. activity compound then investigated in context one-pot synthesis polyhydroquinolines. This approach has number advantages including following: solvent not hazardous, applying porous catalyst inexpensive, secure, recyclable; rapid reaction times, high levels efficiency, simplicity separation. Accordingly, question can be given label "green chemistry".

Language: Английский

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Construction of a Dual-Functionalized Acid–Base Nanocatalyst via HEPES Buffer Functionalized on Fe₃O₄ as a Reusable Catalyst for Annulation Reactions

Langmuir, Journal Year: 2024, Volume and Issue: 40(26), P. 13397 - 13411

Published: June 20, 2024

Herein, we present a highly efficient dual-functionalized acid–base nanocatalyst, denoted as Fe3O4@GLYMO-HEPES, featuring sulfuric acid and tertiary amines its dual functional components. This catalyst is synthesized through the immobilization of 4-(2-hydroxyethyl)-1-piperazineethanesulfonic (HEPES) source these functionalities onto magnetite (Fe3O4) using 3-glycidoxypropyltriethoxysilane (GLYMO) linker. Characterization studies confirm integrity Fe3O4 core, with GLYMO-HEPES coating exhibiting no phase changes. Furthermore, Fe3O4@GLYMO-HEPES nanoparticles demonstrate uniform size distribution without aggregation. Notably, exhibits remarkable stability up to 200 °C possesses saturation magnetization value 31.5 emu/g, facilitating easy recovery via magnetic separation. These findings underscore potential versatile recyclable nanocatalyst for various applications. Its catalytic ability was evaluated in synthesis pyrano[2,3-c]pyrazoles 2-amino-3-cyano-4H-chromenes tandem Knorr–Knoevenagel–Michael–Thorpe–Ziegler-type heterocyclization mechanism, different aldehydes. A wide range fused heterocycles having good excellent yields. The process cost-effective, safe, sustainable, scalable, can be reused five times. prepared found stable heterogeneous showed recyclability.

Language: Английский

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Development of a novel polydopamine-imprinted MOFs targeted for removal of refractory organic pollutants: Synergistic mechanisms of adsorption and degradation

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 460, P. 142601 - 142601

Published: May 17, 2024

Language: Английский

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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

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Catalytic conversion of biomass-derived 5-hydroxymethylfurfural to 5-hydroxymethyl-2-furancarboxylic acid using novel cobalt-based MOF in the presence of deep eutectic solvents

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

Published: Dec. 28, 2024

The oxidation of 5-HMF to HMFCA is an important yet complex process, as it generates high-value chemical intermediates. Achieving this transformation efficiently requires the development non-precious, highly active catalysts derived from renewable biomass sources. In work, we introduce UoM-1 (UoM, University Mazandaran), a novel cobalt-based metal-organic framework (Co-MOF) synthesized using simple one-step ultrasonic irradiation method. synthesis employed ligand 4,4'-((1E,1'E)-((5-carboxy-1,3-phenylene)bis(azaneylylidene))bis (methaneylylidene))dibenzoic acid (H3bdda). A comprehensive suite analytical techniques, including FT-IR, EDX, ICP, XRD, TEM, DLS, FESEM, and BET-BJH, was used confirm structural integrity material. catalytic performance investigated for selective conversion HMF HMFCA, demonstrating its effectiveness low-cost, accessible catalyst. To promote more sustainable environmentally friendly approach, reactions were performed in deep eutectic solvents, which offer green, low-energy alternative traditional solvents. This study shows that catalyst not only provides economical solution but also aligns with modern green chemistry principles, making promising candidate future applications.

Language: Английский

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Sustainable carbonaceous nanomaterial supported palladium as an efficient ligand-free heterogeneouscatalyst for Suzuki–Miyaura coupling

Nanoscale Advances, Journal Year: 2024, Volume and Issue: 6(9), P. 2516 - 2526

Published: Jan. 1, 2024

Samanea saman pods derived carbon nanospheres (SS-CNSs), supported palladium a novel recyclable ligand-free efficient heterogeneous catalyst for the Suzuki coupling reaction.

Language: Английский

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Magnetic nanoparticle-catalyzed synthesis of indole derivatives: a green and sustainable method

Monatshefte für Chemie - Chemical Monthly, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 23, 2025

Language: Английский

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Achiral and chiral metal-organic frameworks (MOFs) as an efficient catalyst for organic synthesis

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 533, P. 216536 - 216536

Published: Feb. 26, 2025

Language: Английский

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Synthesis and characterization of Ni(II) complex supported on magnetite-silica nanoparticles and investigation of its catalytic activity in Biginelli reaction under solvent-free conditions

Research on Chemical Intermediates, Journal Year: 2024, Volume and Issue: 50(5), P. 2067 - 2090

Published: April 6, 2024

Language: Английский

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Construction of heterogeneous MOF-on-MOF for highly efficient gaseous iodine sequestration under static conditions

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 136017 - 136017

Published: Sept. 30, 2024

Language: Английский

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