Ferrocene/air double-mediated FeTiO₃-photocatalyzed semi-heterogeneous annulation of quinoxalin-2(1H)-ones in EtOH/H₂O

Chemical Communications, Год журнала: 2023, Номер 59(94), С. 14029 - 14032

Опубликована: Янв. 1, 2023

With both ferrocene and air as the redox catalysts, for first time, low-cost natural ilmenite (FeTiO3) was successfully used photocatalytic bond formations. Under assistance of a traceless H-bond, HCHO methylene reagent, variety imidazo[1,5-a]quinoxalinones were semi-heterogeneously photosynthesized in high yields with good functional group compatibility.

Язык: Английский

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Room temperature synthesis of β-ketonitriles catalyzed by metal–organic framework supported Pd nanoparticles

Journal of Catalysis, Год журнала: 2024, Номер 430, С. 115308 - 115308

Опубликована: Янв. 21, 2024

Язык: Английский

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Paired Electrolysis-Enabled Arylation of Quinoxalin-2(1H)-ones

The Journal of Organic Chemistry, Год журнала: 2024, Номер 89(9), С. 6117 - 6125

Опубликована: Апрель 24, 2024

The first paired electrolysis-enabled arylation of quinoxalin-2(1H)-ones was achieved using cyanoarenes as the reagents. A variety 3-arylquinoxalin-2(1H)-ones with various important functional groups were obtained in moderate to good yields under metal- and chemical oxidant-free conditions. With a pair reductive oxidative processes occurring among substrates reaction intermediates, power consumption can be dramatically reduced.

Язык: Английский

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Merging Photoinduced Electron Transfer with Hydrogen Atom Transfer: Formal β-C(sp³)–H Pyridination of Carbonyls

The Journal of Organic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

In this study, a novel approach that combines photoinduced electron transfer (ET) with hydrogen atom (HAT) has been introduced for the selective β-C(sp3)–H pyridination of carbonyl compounds. This method is notable its absence transition metals and ability to function under benign reaction conditions, resulting in range pyridinated derivatives consistently moderate good yields. The significance technique further underscored by potential late-stage functionalization pharmaceutically significant molecules. Mechanistic investigations confirmed proceeds via radical-mediated pathway.

Язык: Английский

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Recent Advances in Green Multi-Component Reactions for Heterocyclic Compound Construction

Organic & Biomolecular Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

This review highlights the recent advances in multi-component reactions for synthesizing heterocyclic compounds via green approaches including photoredox catalysis, electrochemical activation, catalyst-free methods and use of water as sole solvent.

Язык: Английский

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“Alkene-to-Alkene” Difunctionalization of Enaminones for the Synthesis of Polyfunctionalized Alkenes by Transition-Metal-Free C–H and C–N Bond Transformation

Organic Letters, Год журнала: 2023, Номер 25(47), С. 8451 - 8456

Опубликована: Ноя. 16, 2023

The three-component reactions of enaminones, disulfides, and alcohols for the synthesis polyfunctionalized alkenes have been realized via C-H C-N bond transformation on enaminones. proceed in a novel "alkene-to-alkene" difunctionalization mode without using any transition metal. application alkene products divergent sulfenyl heteroaryls, including sulfenylated pyrazoles, pyrimidines, isoxazoles, simple annulation has also verified.

Язык: Английский

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Photocatalyst/metal-free sequential C–N/C–S bond formation: Synthesis of S-arylisothioureas via photoinduced EDA complex activation

Chinese Chemical Letters, Год журнала: 2024, Номер 35(11), С. 110024 - 110024

Опубликована: Май 17, 2024

Язык: Английский

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Transition metal-free tunable synthesis of 3-(trifluoromethylthio) and 3-trifluoromethylsulfinyl chromones via domino C-H functionalization and chromone annulation of enaminones

Chinese Chemical Letters, Год журнала: 2024, Номер 35(11), С. 109683 - 109683

Опубликована: Март 2, 2024

Язык: Английский

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NPh₃-Mediated WO₃-Photocatalyzed Semiheterogeneous Hydroxylation of Aryl and Alkyl Boronic Acids

The Journal of Organic Chemistry, Год журнала: 2024, Номер 89(15), С. 10654 - 10659

Опубликована: Июль 17, 2024

With an inexpensive and commercially available WO

Язык: Английский

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Electrochemical Multicomponent Cascade Reaction for the Synthesis of Selenazol-2-amines with Elemental Selenium

The Journal of Organic Chemistry, Год журнала: 2024, Номер 89(6), С. 4113 - 4119

Опубликована: Март 6, 2024

The first example of an electrochemical multicomponent synthesis selenium-containing compounds with inexpensive and abundant elemental selenium as the selenating reagent was developed. A variety selenazol-2-amines were constructed in high yields good functional group tolerance under metal-free chemical oxidant-free conditions.

Язык: Английский

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