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

Langmuir, Год журнала: 2024, Номер 40(18), С. 9579 - 9591

Опубликована: Апрель 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.

Язык: Английский

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Activating and Stabilizing Lattice Oxygen via Self-Adaptive Zn–NiOOH Sub-Nanowires for Oxygen Evolution Reaction

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(42), С. 29006 - 29016

Опубликована: Окт. 9, 2024

Efficient and durable catalysts for the oxygen evolution reaction are essential realizing large-scale application of water electrolysis technologies. Here, we report a novel Zn-doped NiOOH subnanowires (Zn–NiOOH SNWs) catalyst synthesized via electrochemical reconstruction Zn–NiMoO4 SNWs. The inclusion Zn triggers transition in mechanism from adsorbate to lattice mechanism, resulted Zn's adaptive adjustment coordination types, which also improves energetics, thereby enhancing stability activity. Furthermore, subnanowire structure provides further stabilization Zn–NiOOH, preventing its destructive dissolution. Remarkably, Zn–NiOOH SNWs display current density 10 mA cm–2 with an overpotential only 179 mV maintain stable operation at 200 800 h minimal changes overpotential, establishing them as one most effective involving alkaline reaction. When utilized anode electrolyzer, our demonstrates exceeding 500 under water-splitting cm–2, indicating promising potential practical applications.

Язык: Английский

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Low pressure amide hydrogenation enabled by magnetocatalysis

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Апрель 11, 2025

Язык: Английский

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The CO₂ Tree: The Potential for Carbon Dioxide Utilization Pathways

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 13(1), С. 5 - 29

Опубликована: Дек. 13, 2024

Among the most active areas of chemistry research today is that carbon dioxide utilization: an area was viewed as futile and commercially impractical not so long ago due to energetic stability CO2 molecule. The breakthroughs largely began in earnest 1990s have accelerated now make up a diverse plentiful portfolio technological scientific advances commercialized technologies. Here, "The Tree" presented tool illustrate breadth potential products from utilization communicate these chemical address greatest challenge society faces today: climate change. It intended be useful for scientists, engineers, legislators, advocates, industrial decision-makers, policy makers, general public know what already possible may near future.

Язык: Английский

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Precisely Assembling a CoO Cocatalyst onto Tb₄O₇/CN and Pt-Tb₄O₇/CN for Promoting Photocatalytic Overall Water Splitting

Inorganic Chemistry, Год журнала: 2024, Номер 63(18), С. 8397 - 8407

Опубликована: Апрель 23, 2024

Photocatalytic overall water splitting (POWS) is a promising approach for solar-to-hydrogen conversion. For achieving this target, it urgent to develop efficient photocatalysts. Constructing heterojunction and loading cocatalyst are two effective strategies enhancing POWS. However, how achieve the cooperation of site with charge separation remains huge challenge. Herein, we present an ingenious method: precisely assembling H

Язык: Английский

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Azobenzene-Integrated NHC Ligands: A Versatile Platform for Visible-Light-Switchable Metal Catalysis

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(19), С. 13210 - 13225

Опубликована: Май 6, 2024

A new class of photoswitchable NHC ligands, named azImBA, has been developed by integrating azobenzene into a previously unreported imidazobenzoxazol-1-ylidene framework. These rigid photochromic carbenes enable precise control over confinement around metal's coordination sphere. As model system, gold(I) complexes these NHCs exhibit efficient bidirectional E–Z isomerization under visible light, offering versatile platform for reversibly photomodulating the reactivity organogold species. Comprehensive kinetic studies protodeauration reaction reveal rate differences up to 2 orders magnitude between E and Z isomers NHCs, resulting in quasi-complete visible-light-gated ON/OFF switchable system. Such high level photomodulation efficiency is unprecedented gold complexes, challenging current state-of-the-art organometallics. Thorough investigations ligand properties paired with structure–reactivity correlations underscored unique ligand's steric features as key factor reactivity. This effective photocontrol strategy was further validated catalysis, enabling situ photoswitching catalytic activity intramolecular hydroalkoxylation -amination alkynes. Given significance findings its potential widely applicable, easily customizable ancillary platform, azImBA poised stimulate development adaptive, multifunctional metal complexes.

Язык: Английский

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Gold(I) Complex with a Photoactive Ligand Behaves as a Two-in-One Dual Metallaphotoredox Cross-Coupling Catalyst

ACS Catalysis, Год журнала: 2024, Номер 14(6), С. 4066 - 4073

Опубликована: Фев. 29, 2024

We herein describe the use of a gold complex with naphthalene-di-imide-functionalized N-heterocyclic carbene (NDI-NHC) ligand, which was used as photocatalyst for variety reactions. Due to presence naphthalene moiety in can be photogeneration singlet oxygen, behaving endoperoxidation and peroxidation cyclic acyclic alkenes, also selective oxidation simulant sulfur mustard its related nontoxic sulfoxide. The same catalyst two model oxidative C–C coupling reactions, namely, aryldiazonium salts alkynylsilanes mesitylene. These catalytic reactions are good indication that (NDI-NHC)-Au(I) behave an effective dual metallophotoredox but particular feature both photosensitizer metal contained compound, thus constituting very rare type "two-in-one" catalyst. participation Au(I)/Au(III) couple process demonstrated by isolation Au(III) complex, obtained via self-photoactivated photoredox reaction.

Язык: Английский

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CRISPR/Cas12a coupled with In2O3/multiwalled carbon nanotube/PTCDA-EDA-DAP modified electrode self-powered photoelectrochemical assay for EBV-DNA

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 418, С. 136274 - 136274

Опубликована: Июль 9, 2024

Язык: Английский

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Design and Understanding of Adaptive Hydrogenation Catalysts Triggered by the H₂/CO₂–Formic Acid Equilibrium

Journal of the American Chemical Society, Год журнала: 2024, Номер unknown

Опубликована: Сен. 25, 2024

An adaptive catalytic system for selective hydrogenation was developed exploiting the H

Язык: Английский

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Controlling hydrogen transfer dynamics in adaptive semihydrogenation of alkynes: Unveiling and directing outer- vs. inner-sphere mechanisms

Chem Catalysis, Год журнала: 2024, Номер 4(9), С. 101078 - 101078

Опубликована: Авг. 20, 2024

Язык: Английский

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