Ultrahigh-Performance Fiber-Supported Iron-Based Ionic Liquid for Synthesizing 3,4-Dihydropyrimidin-2-(1H)-ones in a Cleaner Manner

Langmuir, Journal Year: 2024, Volume and Issue: 40(18), P. 9579 - 9591

Published: April 24, 2024

Herein, a fiber-supported iron-based ionic liquid as type of fibrous catalyst has been developed for the synthesis bioactive 3,4-dihydropyrimidin-2-(1H)-ones (DHPMs) via three-component Biginelli reactions in cleaner manner. The described was obtained from commercially available polyetheretherketone (PEEK) fiber by postfunctionalization processes and characterized analyzed detail means diversified technologies. Furthermore, liquids could mediate classical to proceed smoothly gain variety substituted DHPMs with yields up 99%. superior catalytic activities were ascribed quasi-homogeneous medium generated surface layer PEEK fiber, which afford an appropriate reaction zone further be aggregation substrates facilitate reaction. Notably, is recycling over 10 runs just pair tweezers, operational procedure capable enlarging system gram-scale without any performance degradation, provided manner take advantage organic potential industrialization prospects.

Language: Английский

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Polyetheretherketone fiber-supported polyethylene glycols for phase-transfer catalysis in its surface layer

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 694, P. 134160 - 134160

Published: May 3, 2024

Language: Английский

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Ultrahigh-Strength Textile Fiber-Supported Schiff Base Copper Complexes for Photocatalytic Degradation of Methyl Orange

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(21), P. 13077 - 13088

Published: Oct. 17, 2024

An ultrahigh-strength textile fiber-supported Schiff base copper complex PEEK-SB@Cu(II) was prepared by chloromethylation and amination of a commercially available poly(ether ether ketone) (PEEK) fiber, followed functionalization acetate chelation treatment. The fibers derived from the preparation stages catalytic runs were characterized using diverse techniques to investigate these changes. Moreover, incorporated with NaBH4 presented effective photocatalytic activities for fast exhaustive degradation methyl orange in an aqueous solution rate >99% no more than 2 min. corresponding influencing factors screened confirm that process based on pseudo-first-order reaction kinetic mode, synergistic mechanism proposed interpret process. Furthermore, recyclability stability evaluated over 5 long-term storage at least months, practicability this methodology spinning basket reactor further verified.

Language: Английский

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Tbd-Grafted Activated Carbon as an Efficient Solid Base Catalyst for Continuous Knoevenagel Reaction

Published: Jan. 1, 2025

Language: Английский

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TBD-grafted activated carbon as an efficient solid base catalyst for continuous Knoevenagel reaction

Journal of Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 116156 - 116156

Published: April 1, 2025

Language: Английский

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Ionic liquid containing high-density polyethylene supported tungstate: a novel, efficient, and highly recoverable catalyst

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

Published: Feb. 29, 2024

Synthesis and catalytic application of polymeric-based nanocomposites are important subjects among researchers due to their high lipophilicity as well chemical mechanical stability. In the present work, a novel nanocomposite material involving ionic liquid high-density polyethylene supported tungstate (PE/IL-WO 4 = ) is synthesized, characterized its investigated. The coacervation method was used incorporate 1-methyl-3-octylimidazolium bromide ([MOIm] [Br]) in polyethylene, resulting PE/IL composite. Subsequently, anchored on give PE/IL-WO catalyst. PXRD, FT-IR, EDX, TGA, SEM analyses were characterize This demonstrated efficiency synthesis bioactive tetrahydrobenzo[a]xanthen-11-ones under green conditions. recoverability leching tests performed investigate stability durability designed catalyst applied

Language: Английский

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Boosting catalytic efficiency of lipase by regulating amphiphilic microenvironment through reversible addition-fragmentation chain transfer polymerized modifications on polyacrylonitrile fiber

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 277, P. 134196 - 134196

Published: July 26, 2024

Language: Английский

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One-pot multi-component synthesis of 2-Amino-4H-chromenes catalyzed by a fiber super base under mild conditions

Tetrahedron, Journal Year: 2024, Volume and Issue: unknown, P. 134282 - 134282

Published: Sept. 1, 2024

Language: Английский

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Practical Applications of Fiber‐Supported Catalysts in Organic Transformations

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(43)

Published: Nov. 1, 2024

Abstract Fiber‐based catalysts have been effectively employed in various organic conversions due to their mechanical properties and reprocess ability diverse catalytic technologies. One advantage of fiber‐based is exceptional flexibility, which allows them be intertwined on the impellers agitation system. This enhances efficiency heat mass transfer during stirring process, thereby improving reaction efficiency. Additionally, can cut into different sizes shapes as required. enables packed types synthesis reactors for continuous‐flow processing, enhancing capacity. The objective this review investigate practical applications conversions, with a particular focus utilization spinning basket processing systems. Furthermore, it imperative conduct thorough analysis technical principles parameters governing process across scenarios.

Language: Английский

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Acid–Base Bifunctional Fiber as Highly Active Catalyst for the Tandem Deprotection-Knoevenagel Reaction

Catalysis Letters, Journal Year: 2023, Volume and Issue: 154(4), P. 1451 - 1461

Published: July 18, 2023

Language: Английский

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