Ligand-Enabled “Two-in-One” Metallaphotocatalytic Cross Couplings

ACS Catalysis, Год журнала: 2025, Номер 15(3), С. 1635 - 1654

Опубликована: Янв. 15, 2025

Metallaphotoredox cross coupling (MCC) is ranking among the most advanced synthetic methodology as it can access chemical space that difficult to attain under conventional conditions. Earlier developed MCC mandates an independent transition metal catalyst and respective photocatalyst, thus constituting a dual catalytic manifold. Complementarily, paradigm-shifting metallaphotoredox strategy capitalizes on single photoreactive complex emerging, which brings not only operational simplification but also unexpected mechanistic insights. This perspective compiled recent advances in monocatalytic couplings categorized them based ligands confer distinct photoreactivities various mechanisms. To this end, ligand-enabled oxidative addition, transmetalation, reductive elimination other radical-involving pathways were summarized with notable examples. In way, we wish provide handy guideline for readers who are interested emerging field inspire more future endeavors MCCs beyond.

Язык: Английский

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Palladium-Embedded Triptycene-Based Porous Organic Polymer: A Sustainable Catalyst for Suzuki–Miyaura Cross-Coupling Reactions

ACS Applied Polymer Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 16, 2025

A knitted aryl network polymer (KAP) containing triptycene and triphenylphosphine was synthesized by a simple Friedel–Crafts reaction. The (Tp_PPh3) exhibits good physicochemical stability with high BET surface area (>960 m2/g). groups were incorporated in order to anchor palladium species on the pristine KAP backbone (Tp_PPh3). Consequently, metalation of Tp_PPh3 yielded Pd@Tp_PPh3, which showed catalytic behavior Suzuki–Miyaura cross-coupling reactions yield targeted products an aerobic environment, using water ethanol as green solvents. This polymer-based heterogeneous catalyst is air/moisture stable can be easily dispersed reused for several cycles without any significant loss activity. Even at low loadings (13.8 wt %), Pd@Tp_PPh3 catalyzed rapid conversions. equally useful gram-scale reactions. strategy avoids aggregation precipitation Pd simultaneously ensures more sustainable use Suzuki application may extended other Pd-catalyzed

Язык: Английский

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Covalent Organic Frameworks and Their Derivatives for Applications in High‐Performance Lithium–Sulfur Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 30, 2024

Abstract Lithium–Sulfur batteries (LSBs) are widely regarded as one of the most promising energy storage systems due to their ultra‐high theoretical density and environmental friendliness. However, practical applications LSBs face significant challenges, including shuttle effect soluble polysulfides formation lithium dendrites. Covalent organic frameworks (COFs) have emerged potential materials for inhibiting polysulfide buffering This review provides an overview latest advancements in use COF its derivative sulfur host materials, modified commercial separators, electrolytes LBSs, makes some brief conclusions predictions. Pure COFs, derivatives, composites discussed hosts, along with novel strategies intended enhance LSB cycling stability reversibility. Strategies enhancing performance summarized through modification separators using ultimate goal achieving high density. It also discusses designing COF‐based electrolytes, which include structural design, ionic introduction salt molecules or flexible oligo(ethylene oxide) chains into skeletons. Additionally, future prospects COFs derivatives LSBs.

Язык: Английский

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Efficient conversion of pomelo peel into upgraded bio-crude oil and solid fuel through metal–organic framework catalyzed hydrothermal liquefaction

Energy, Год журнала: 2025, Номер unknown, С. 135087 - 135087

Опубликована: Фев. 1, 2025

Язык: Английский

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Effect of π-Linkages in Covalent Organic Framework-Catalyzed Light-Harvesting Thioesterification Reaction

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Фев. 24, 2025

Covalent organic frameworks (COFs) serve as an outstanding platform for heterogeneous photocatalysis. We synthesized two analogous pyrene-based two-dimensional COFs with π-conjugated networks, one linked by C═N bonds and the other C═C bonds, through Schiff base Knoevenagel condensation reactions, respectively. investigated impact of these linkages on photocatalytic activity COFs, using visible-light-mediated thioesterification a model reaction. It was found that olefin-linkage COF outperformed imine-linkage photocatalyst. The developed protocol demonstrated broad substrate scope, including 35 diverse carboxylic acids, 14 drug molecules, several disulfide coupling partners, achieving up to 95% yield thioesters. practical utility this strategy is further its successful application in gram-scale reactions. photocatalyst robust successfully reused multiple cycles without any loss catalytic activity. backbone facilitated enhanced electron transfer upon light irradiation, enabling cross-coupling acid reductive cycle.

Язык: Английский

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Highly crystalline multi-component covalent organic frameworks for photocatalytic organic conversion

Molecular Catalysis, Год журнала: 2025, Номер 577, С. 114976 - 114976

Опубликована: Март 5, 2025

Язык: Английский

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Immobilization of CuO NPs on a highly nitrogen‐rich-modified metal–organic framework, UiO-66-NH2: As an efficient heterogeneous nanocatalyst for the synthesis of Suzuki–Miyaura coupling reaction

Inorganic Chemistry Communications, Год журнала: 2025, Номер unknown, С. 114247 - 114247

Опубликована: Март 1, 2025

Язык: Английский

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Xantphos–Cu‐Decorated Covalent Organic Frameworks for C─H Arylation through Sensitized Electron Transfer

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 4, 2025

The isoindolinone scaffold is an important structural motif found in a wide range of naturally occurring and synthetic biologically active compounds. However, the synthesis derivatives typically requires multi-step procedures or use palladium-based catalysts, which are often hampered by low reaction yields high costs. Recently, covalent organic frameworks (COFs)-emerging crystalline porous materials-have gained considerable attention for their applications various transformations, particularly C─H functionalization, cross-coupling redox reactions. Although COFs have been extensively studied photocatalysis, development sustainable heterogeneous catalysts using low-cost transition metal-based photosensitizers still its early stages. Herein, strategy presented to incorporate copper-Xantphos complex with tetrahedral Cu(I) geometry into COF matrix. This modification enables unprecedented simultaneous electron energy transfer efficiency during photocatalysis. Cu-Xantphos coordinated exhibits potent photocatalytic activity via C─Br bond cleavage followed C─C formation. In addition, catalyst shows excellent recyclability as it can be rejuvenated reintroducing after multiple cycles-highlighting potential cost-effective solution valuable transformations.

Язык: Английский

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Recent Advances in Covalent Organic Frameworks as Photocatalysts for Organic Transformations

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116253 - 116253

Опубликована: Март 1, 2025

Язык: Английский

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Design, Synthesis, and Application of Immobilized Enzymes on Artificial Porous Materials

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Апрель 30, 2025

Enzymes have been recognized as highly efficient biocatalysts, whereas characteristics such poor stability and single reaction type greatly significantly limit their wide application. Hence, the exploitation of suitable carriers for immobilized enzymes enables provision a protective layer enzyme, with capability chemical biological cascade catalysis. Among various immobilization carriers, metal-organic frameworks (MOFs), covalent organic (COFs) hydrogen-bonded (HOFs) emerging promising strategy to surpass inherent instability other limitations free enzymes. Specifically, integration artificial porous materials improves reusability enzymes, while simultaneously affording platform multifunctional applications. Herein, this review systematically discusses preparation strategies advantages materials, elucidating effects different methods on enzyme activity. Furthermore, innovative applications in field fields photocatalysts, catalysts sensing are also comprehensively summarized here, thus demonstrating addressing complex biotransformation challenges.

Язык: Английский

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