Thiyl Radical Trapped by Cobalt Catalysis: An Approach to Markovnikov Thiol–Ene Reaction

Organic Letters, Год журнала: 2024, Номер 26(3), С. 591 - 596

Опубликована: Янв. 12, 2024

In the presence of a thiyl radical species, catalytic Markovnikov thiol–ene reaction is challenging because it prefers to proceed via pathway, thereby leading anti-Markovnikov selectivity. this work, rare example engaged in enabled by cobalt catalysis reported. This protocol features avoidance unique oxidants, exclusive regioselectivity, and broad substrate scope. Scalable synthesis late-stage modification complex molecules demonstrate practicability protocol.

Язык: Английский

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In situ decorated pd NPs on Triazin-encapsulated Fe3O4/SiO2-NH2 as magnetic catalyst for the synthesis of diaryl ethers and oxidation of sulfides

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Окт. 25, 2024

This article is devoted to the synthesis of a new magnetic palladium catalyst that has been immobilized on A-TT-Pd coated-magnetic Fe

Язык: Английский

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A General Electron Donor‐Acceptor Photoactivation Using Oxime Esters Enabled Divergent Thioetherifications^†

Chinese Journal of Chemistry, Год журнала: 2024, Номер 42(22), С. 2751 - 2756

Опубликована: Июль 12, 2024

Comprehensive Summary The EDA complex‐mediated reactions involving oxime esters have been few studied. Herein, an complex formed by thiophenolate anion and ester is reported for photoinduced divergent synthesis of thioethers, depending on different types esters. Operational simplicity, mild reaction conditions, flexible options leaving group demonstrate the generality synthetic utility this approach. Such approach can also enable interesting thiol‐catalysis phenanthridines.

Язык: Английский

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Boosting the Superoxide Anion Radical Generation of Triphenylamine- and Benzothiadiazole-based Supramolecular Organic Framework for Improving Photocatalytic Performance

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Фев. 11, 2025

The construction of three-component supramolecular organic frameworks (SOFs) remains a challenge in this field due to the complex noncovalent interactions involved and limitations existing preparation methods. In study, we designed synthesized two photosensitive modules, with naphthalene-modified triphenylamine derivative (NA-TPA) as donor unit methylated-viologen-modified benzothiadiazole (DPBT) acceptor unit, which can self-assemble into two-dimensional framework (SOF) through encapsulation-enhanced donor–acceptor interaction cucurbit[8]uril (CB[8]) water. SOF not only nanosheet morphology water but also exhibit excellent luminescence enhancement performance. Compared monomers NA-TPA DPBT, effectively promote electron transfer greatly improve ability produce superoxide anion radicals (O2•–), be used photocatalyze thiol–ene cross-coupling reaction yield up 90%. This work provides useful exploration for SOFs photocatalytic application.

Язык: Английский

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Bifunctional iron-mediated multicomponent Markovnikov-selective radical hydrothiolation of alkenes

Organic Chemistry Frontiers, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

A bifunctional iron-mediated multicomponent reaction for Markovnikov-selective hydrothiolation of alkenes has been established. The involves an hydrogen atom transfer and a single electron process.

Язык: Английский

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Catalytic hydrofunctionalizations of alkenes via hydrogen atom transfer with 3d transition metal complexes (MHAT): A pragmatic approach to recent contributions

Applied Catalysis A General, Год журнала: 2025, Номер unknown, С. 120379 - 120379

Опубликована: Май 1, 2025

Язык: Английский

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The radical chemistry of N-sulfenyl phthalimides/succinimides for C S bonds formation

Tetrahedron Letters, Год журнала: 2024, Номер 144, С. 155153 - 155153

Опубликована: Июнь 17, 2024

Язык: Английский

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Iron-Catalyzed Markovnikov-Selective Radical Hydrochalcogenation of Unactivated Alkenes

ACS Catalysis, Год журнала: 2024, Номер 15(1), С. 14 - 22

Опубликована: Дек. 12, 2024

A Markovnikov-selective radical hydrochalcogenation reaction of unactivated alkenes via iron-catalyzed hydrogen atom transfer was reported. Using N-(arylsulfenyl)arenesulfonamide, PhSO2SCD3, S-alkyl thiosulfonate, dithiosulfonate and Ebselen derivatives as versatile radicalophiles, a wide range unsymmetrical alkyl-aryl, dialkyl SCD3 (D > 99%) containing sulfides, disulfides, well organoselenides have been collectively synthesized under mild conditions. As powerful alternative to the classical thiol–ene reaction, this protocol features exclusive Markovnikov selectivity, good functional group tolerance broad substrate scope. number probe experiments suggest proceeds through pathway. The synthetic utility transformation also demonstrated late-stage modifications diverse natural products bioactive molecules.

Язык: Английский

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Cobalt-Catalyzed Synthesis of Alkenyl Heterocycles via Regioselective Intramolecular 1,4-Hydrofunctionalization of Dienes

Organic Letters, Год журнала: 2024, Номер unknown

Опубликована: Сен. 25, 2024

We report a novel cobalt-catalyzed intramolecular 1,4-hydrofunctionalization of dienes. The reaction proceeds under mild conditions and is amenable to N- O-nucleophiles. protocol exhibits exclusive regioselectivity, yielding number different alkenyl heterocycles, including but not limited dihydroisobenzofurans, isochromanes, tetrahydrofurans, morpholines, lactones, isoindolines. Experimental studies were performed offer some insight into the mechanistic pathways rationalize regio- stereoselectivities reaction.

Язык: Английский

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A supramolecular dimer strategy for enhancing the selective generation of sulfides and sulfoxides by visible-light induced photoredox thiol-ene cross-coupling reactions of anthraquinone

Organic Chemistry Frontiers, Год журнала: 2024, Номер 11(23), С. 6684 - 6693

Опубликована: Янв. 1, 2024

A supramolecular dimer based on anthraquinone was constructed through host–guest interactions, which can not only improve the generation capacity of reactive oxygen species, but also be used as photocatalysts for photocatalytic C–S coupling reaction.

Язык: Английский

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