Covalent organic frameworks and their composites as multifunctional photocatalysts for efficient visible-light induced organic transformations

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 472, P. 214774 - 214774

Published: Aug. 23, 2022

Language: Английский

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Photochemical aerobic oxidation of sulfides to sulfoxides: the crucial role of wavelength irradiation

Green Chemistry, Journal Year: 2022, Volume and Issue: 24(10), P. 4108 - 4118

Published: Jan. 1, 2022

Introducing green and sustainable photochemical aerobic protocols for the oxidation of sulfides to sulfoxides.

Language: Английский

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Metal–organic frameworks for organic transformations by photocatalysis and photothermal catalysis

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(18), P. 9378 - 9418

Published: Jan. 1, 2024

Organic transformation by light-driven catalysis, especially, photocatalysis and photothermal denoted as photo(thermal) is an efficient, green, economical route to produce value-added compounds. In recent years, owing their diverse structure types, tunable pore sizes, abundant active sites, metal-organic framework (MOF)-based catalysis has attracted broad interest in organic transformations. this review, we provide a comprehensive systematic overview of MOF-based for First, the general mechanisms, unique advantages, strategies improve performance MOFs are discussed. Then, outstanding examples transformations over introduced according reaction type. addition, several representative advanced characterization techniques used revealing charge kinetics intermediates presented. Finally, prospects challenges field proposed. This review aims inspire rational design development materials with improved catalysis.

Language: Английский

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An overview of porphyrin-based catalysts for sulfide oxidation reactions

Polyhedron, Journal Year: 2025, Volume and Issue: 269, P. 117389 - 117389

Published: Jan. 11, 2025

Language: Английский

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Metal-organic framework-based nanostructured catalysts: Applications in efficient organic transformations

Molecular Catalysis, Journal Year: 2023, Volume and Issue: 546, P. 113217 - 113217

Published: May 27, 2023

Language: Английский

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State-of-the-art analysis of the fuel desulphurization processes: Perspective of CO2 utilization in coal biodesulphurization

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 478, P. 147517 - 147517

Published: Nov. 19, 2023

Language: Английский

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Visible-light induced direct C(sp³)–H functionalization: recent advances and future prospects

Organic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(18), P. 5278 - 5305

Published: Jan. 1, 2024

This review summarizes the latest methodological advances in photocatalytic C(sp 3 )–H functionalization, with a particular emphasis on formation of C–P, C–B, C–S bonds, etc ., and some prominent efforts asymmetric C–H functionalization.

Language: Английский

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Recyclable and Stable Porphyrin‐Based Self‐Assemblies by Electrostatic Force for Efficient Photocatalytic Organic Transformation

Advanced Science, Journal Year: 2024, Volume and Issue: 11(21)

Published: March 9, 2024

Abstract Development of efficient, stable, and recyclable photocatalysts for organic synthesis is vital transformation traditional thermal chemistry into green sustainable chemistry. In this work, the study reports an electrostatic approach to assemble meso‐tetra (4‐sulfonate phenyl) porphyrin (TPPS)tetra (TPPS) as a donor benzyl viologen (BV) acceptor stable photocatalyst efficient reaction – aryl sulfide oxidation. By use TPPS‐BV photocatalysts, 0.1 mmol with electron‐donating group can be completely transformed sulfoxide in 60 min without overoxidation sulfone, rendering near 100% yield selectivity. The recycled up 95% when 10 mg amount used. Mechanistic reveals that charge separation between TPPS BV results sufficient formation superoxide which further reacts oxidized by produce sulfoxide. This mechanistic pathway differs significantly from previously proposed singlet oxygen‐dominated process homogeneous photocatalysis.

Language: Английский

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Efficient Energy and Electron Transfer Photocatalysis with a Coulombic Dyad

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(37), P. 25799 - 25812

Published: Sept. 3, 2024

Photocatalysis holds great promise for changing the way value-added molecules are currently prepared. However, many photocatalytic reactions suffer from quantum yields well below 10%, hampering transition lab-scale to large-scale or even industrial applications. Molecular dyads can be designed such that beneficial properties of inorganic and organic chromophores combined, resulting in milder reaction conditions improved reactions. We have developed a novel approach obtaining advantages molecular without time- resource-consuming synthesis these tailored photocatalysts. Simply by mixing cationic ruthenium complex with an anionic pyrene derivative water salt bichromophore is produced owing electrostatic interactions. The long-lived triplet state obtained static quantitative energy transfer preorganized complex. exploited this so-called Coulombic dyad catalysis similar reactivity higher photostability compared reference photosensitizers several photooxygenations. In addition, it was shown system also used maximize yield photoredox This due intrinsically cage escape after photoinduced electron purely compounds heavy atom-containing molecules. combination laboratory-scale as mechanistic irradiation experiments detailed spectroscopic investigations provided deep insights into easy-to-use photocatalyst class.

Language: Английский

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Indium Imidazo[4,5,-b]porphyrins as Photocatalysts for Oxidation of Sulfides

Molecules, Journal Year: 2025, Volume and Issue: 30(4), P. 864 - 864

Published: Feb. 13, 2025

Over the past two decades, application of photocatalytic reactions in organic synthesis has increased remarkably. Porphyrins, renowned for their exceptional photophysical properties, photostability, and prevalence natural catalytic processes, are attracting significant attention as promising photocatalysts proceeding through energy transfer one-electron transfer. In this work, we synthesized indium(III) complex 2-[4-(diethoxyphosphoryl)phenyl]-1H-imidazo[4,5-b]-5,10,15,20-tetramesitylporphyrin (InTMPIP) explored its a photocatalyst oxidation sulfides by dioxygen or air. Complex InTMPIP was found to generate singlet oxygen with quantum yield 0.92 (toluene) enables efficient photooxidation sulfoxides "green" acetonitrile/water (4:1 v/v) methanol/chloroform (2:1 solvent mixtures almost quantitative yield. Furthermore, grafted onto hydrated mesoporous titania materials InTMPIP/TiO2-1 InTMPIP/TiO2-2 different In/Ti ratios were obtained investigated. The composition structure studied using combination elemental analysis, various spectroscopic methods, gas adsorption measurements, SEM imaging. Finally, efficiency aerobic sulfides. heterogenized selective under conditions; however, it is prone leaching into solution when irradiated both blue red LEDs.

Language: Английский

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