Captopril supported on magnetic graphene nitride, a sustainable and green catalyst for one-pot multicomponent synthesis of 2-amino-4H-chromene and 1,2,3,6-tetrahydropyrimidine

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Nov. 23, 2023

Abstract Captopril (CAP) is a safe, cost-effective, and environmentally organic compound that can be used as an effective organo-catalyst. Functional groups of captopril make it capable to attach solid support acting promoters in transformations. In this work, was attached the surface magnetic graphene nitride by employing linker agent. The synthesized composite efficiently catalyzed two multicomponent reactions including synthesis 1,2,3,6-tetrahydropyrimidine 2-amino-4 H -chromene derivatives. A large library functional targeted products mild reaction conditions. More importantly, catalyst stable magnetically recycled reused for at least five runs without losing catalytic activity.

Language: Английский

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Visible light-driven C–H arylation of heteroarenes with aryl diazonium salts in water catalyzed by a Z-scheme CuInS₂/K-C₃N₄ heterojunction

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(8), P. 4803 - 4810

Published: Jan. 1, 2024

Z-scheme CuInS 2 /K-C 3 N 4 heterojunction has been designed and confirmed as efficient heterogeneous photocatalyst for arylation of heteroarenes with aryl diazonium salts in water under visible light irradiation to give arylated high yields.

Language: Английский

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Research progress in electrochemical/photochemical utilization of methanol as a C1 source

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(21), P. 8313 - 8327

Published: Jan. 1, 2023

This review highlights the recent advances in various electrochemical and photochemical reactions using methanol as a sustainable C1 source.

Language: Английский

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Selective synthesis of quinazolinones by using fluorescein catalyst under mild conditions

Molecular Catalysis, Journal Year: 2023, Volume and Issue: 547, P. 113305 - 113305

Published: June 22, 2023

Language: Английский

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Molybdenum disulfide-catalyzed direct α-hydroxymethylation of amides employing methanol as a sustainable C1 source under photoirradiation

Journal of Catalysis, Journal Year: 2023, Volume and Issue: 427, P. 115100 - 115100

Published: Aug. 22, 2023

Language: Английский

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Recyclable Copper Indium Sulfide Quantum Dots for Photocatalytic Homocoupling of Arenediazonium Tetrafluoroborates

ACS Sustainable Chemistry & Engineering, Journal Year: 2023, Volume and Issue: 11(50), P. 17697 - 17707

Published: Dec. 1, 2023

Copper indium sulfide quantum dots (QDs) were prepared by a solvothermal method and characterized X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, energy-dispersive techniques. The as-prepared CuInS2 QDs display excellent photocatalytic activity in the visible-light-driven homocoupling of arenediazonium tetrafluoroborates at room temperature. Various symmetrical biaryls obtained γ-valerolactone (GVL) good to yields under mild reaction conditions. In addition, photocatalyst, QDs, is stable catalytic process can be recycled least five times without significant losing its efficiency.

Language: Английский

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(ODA)2CuBr4: A stable lead-free perovskite as efficient photocatalyst for dehydrogenative coupling of quinoxalin-2(1H)-ones with amines

Molecular Catalysis, Journal Year: 2023, Volume and Issue: 547, P. 113319 - 113319

Published: June 22, 2023

Language: Английский

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Alkyl ammonium hydrogen sulfate immobilized on Fe3O4@SiO2 nanoparticles: a highly efficient catalyst for the multi-component preparation of novel tetrazolo[1,5-a]pyrimidine-6-carboxamide derivatives

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

Published: April 17, 2024

Abstract In this, a three-component reaction for the preparation of novel tetrazolo[1,5-a]pyrimidine-6-carboxamide derivatives from N,N′ -(sulfonylbis(1,4-phenylene))bis(3-oxobutanamide), aldehydes and 1 H -tetrazol-5-amine is reported. The application Fe 3 O 4 @SiO 2 -(PP)(HSO ) (A) as catalyst afforded desired products (a –a 18 in high yields DMF solvent well under solvent-free conditions.

Language: Английский

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Earth‐Abundant Recyclable Magnetic Iron Oxide Nanoparticles for Green‐light Mediated C−H Arylation in Heterogeneous Phase

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: 30(44)

Published: May 24, 2024

A magnetically isolable iron oxide nanoparticles is introduced as an efficient heterogeneous photocatalyst for non-directed C-H arylation employing aryl diazonium salts the precursors. This first-row transition metal-based revealed versatile activities and applicable to a wide range of substrates, demonstrating brilliant efficacy superior recyclability. Detailed catalytic characterization describes physical properties redox behavior Fe-catalyst. Adequate control experiments helped establish radical-based mechanism arylation.

Language: Английский

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Design, Synthesis and Characterization of Palladium‐Functionalized Covalent Organic Framework and Its Application as Heterogeneous Catalysis for C−H Arylation of Azoles

Chemistry - A European Journal, Journal Year: 2023, Volume and Issue: 29(44)

Published: July 21, 2023

A novel triazine-based covalent organic framework (TFPT-Bz COF) has been constructed by the condensation of 2,4,6-tris(5-formyl-2-pyridinoxy)-1,3,5-triazine (TFPT) and benzidine (BZ) with deep eutectic solvent (DES) as reaction medium. After introduction Pd ions through strong coordination to TFPT-Bz COF matrix, COF/Pd composite exhibited excellent catalytic activity for C-H arylation azoles aryl halides in 2-methyltetrahydrofuran. The protocol allows a variety substituted diverse high yield. Moreover, catalyst can be recycled several times without significantly reducing its activity.

Language: Английский

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