Results 91 to 100 of about 32,232 (288)

SuFEx‐Enabled Catalytic Synthesis of Fluorescent Organosulfur Polymers for the Rapid Detection of Explosives

open access: yesAdvanced Science, EarlyView.
Rapid detection of explosives is essential for public safety and national security. Here, conjugated polymers (SPs), incorporating pentiptycene with organosulfur side chains, have been reported using sulfur(VI)‐fluoride exchange (SuFEx). The SP‐7 polymer exhibited exceptional fluorescence quenching (>99% in 60 s) for detecting nitroaromatic explosives.
Sun Bu Lee   +11 more
wiley   +1 more source

Photoredox Catalysts Based on N‐(Hexyl)benzothioxanthene‐3,4‐dicarboximide for Photopolymerization and 3D Printing Under Visible Light

open access: yesAngewandte Chemie, Volume 137, Issue 30, July 21, 2025.
In this work, two benzothioxanthene imide dyes demonstrate excellent photochemical properties. When used as photocatalysts, they work with amine and iodonium salt or sulfonium salt to form different three‐component systems for effectively initiating photopolymerization under visible light, through photoredox catalysis processes.
Bin Song   +10 more
wiley   +2 more sources

Topological Vulcanization Strategy for Elastomeric Electrolytes with Enhanced Mechanical and Electrochemical Properties for Advanced Lithium Metal Batteries

open access: yesAdvanced Science, EarlyView.
Elastomeric electrolytes (EEs) have garnered significant attention in the realm of energy storage system, attributed to their distinctive mechanical properties. In this study, we propose an innovative topological vulcanization stategy to fabricate uniformly crosslinked EEs.
Na Yang   +6 more
wiley   +1 more source

Harnessing Bifunctional N‐Benzoyloxyamides for Photoredox Amidative Dual Functionalizations of Alkenes

open access: yesAngewandte Chemie, EarlyView.
A novel photocatalytic strategy is presented for intermolecular amidative dual functionalization of alkenes using N‐benzoyloxyamides as bifunctional N─O reagents. The method enables efficient olefin 1,2‐amidooxygenation and significantly extends its reactivity to encompass amidoazidation, diamination, and formal anti‐Markovnikov hydroamidation.
Harin Ryoo   +3 more
wiley   +2 more sources

CO2‐DBU‐Triggered Photoredox‐Catalyzed Direct α‐C‐H Alkylation of Alcohols

open access: yesAdvanced Science, EarlyView.
An efficient photoinduced and metal‐free method is developed for direct α‐C–H monoalkylation of alcohols utilizing the CO2‐DBU system as the hydrogen bond acceptor (HBA) in the presence of H2O, allowing for selective functionalization of alcohols with a broad substrate scope.
Zeyu Zhang   +5 more
wiley   +1 more source

Shaping of a Reactive Manganese Catalyst Enables Access to Polyfunctionalized Cyclohexanes via Enantioselective C(sp3)─H Bond Oxidation of 1,3‐meso Diethers

open access: yesAngewandte Chemie, Volume 137, Issue 30, July 21, 2025.
Structural shaping of a highly reactive chiral Mn‐oxo species translates into exceptionally enantioselective C─H oxidation catalyst of cyclohexyl 1,3‐meso diethers (up to >99% ee) leading to polyfunctionalized cyclohexanes. Abstract Chiral polyoxygenated cyclohexanes are valuable constituents of biologically relevant products.
Andrea Palone   +7 more
wiley   +2 more sources

Heme/NADH Mimics Co‐Decorated Allosteric Capsules for Regulating Oxygen Activation and Upregulating Intracellular Methionine Depletion

open access: yesAdvanced Science, EarlyView.
Through modifying the switchable µ‐oxo bridged FeIII‐porphyrins moiety and NADH mimics into a metal‐organic capsule, multiple responsive manners for O2 activation, chemical oxygenation and metabolic transformation have been demonstrated for upregulating intracellular methionine depletion and accumulation of methionine sulfoxide to achieve effective ...
Chunming Ma   +5 more
wiley   +1 more source

Synthesis of Bicyclo[1.1.1]Pentane Z‐Substituted Enamides, Enol Ethers, and Vinyl Sulfides Using Iodine (III) Reagents

open access: yesAngewandte Chemie, EarlyView.
The sequential functionalization of novel BCP‐substituted ethynylbenziodoxolone (EBX) reagents into heteroatom‐ and BCP‐substituted alkenes is described. The addition of N, O, and S nucleophiles on the EBXs was stereoselective and generated heteroatomic Z‐vinylbenziodoxolone (VBX) reagents.
Najung Lee   +3 more
wiley   +2 more sources

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