Visible light-induced Z-scheme V2O5/g-C3N4 heterojunction catalyzed cascade reaction of unactivated alkenes

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Год журнала: 2022, Номер 44, С. 111 - 116

Опубликована: Дек. 2, 2022

Язык: Английский

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Photoinduced, additive- and photosensitizer-free multi-component synthesis of naphthoselenazol-2-amines with air in water

Green Chemistry, Год журнала: 2023, Номер 25(20), С. 7983 - 7987

Опубликована: Янв. 1, 2023

An atom- and step-economical, efficient eco-friendly method for constructing naphthoselenazol-2-amines through a visible-light photocatalytic multi-component reaction under aqueous phase conditions is reported.

Язык: Английский

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A H4SiW12O40-catalyzed three-component tandem reaction for the synthesis of 3,3-disubstituted isoindolinones

Chinese Chemical Letters, Год журнала: 2023, Номер 35(1), С. 108480 - 108480

Опубликована: Апрель 20, 2023

Язык: Английский

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Photocatalyst-free, metal-free, visible light-induced thiolation/pyridylation of styrenes using an electron donor–acceptor complex as a bifunctional reagent

Organic Chemistry Frontiers, Год журнала: 2023, Номер 10(5), С. 1166 - 1172

Опубликована: Янв. 1, 2023

Visible light-induced intermolecular thiolation/pyridylation of styrenes using a thiolate-based EDA complex as bifunctional reagent under mild conditions free photocatalyst, metal or external redox agent is reported.

Язык: Английский

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Decatungstate-photocatalyzed direct acylation of N-heterocycles with aldehydes

Green Chemistry, Год журнала: 2024, Номер 26(12), С. 7331 - 7336

Опубликована: Янв. 1, 2024

A novel photocatalytic acylation strategy was developed harnessing tetrabutylammonium decatungstate (TBADT) as a hydrogen atom transfer (HAT) photocatalyst to facilitate the direct coupling of aldehydes with N-heterocycles at ambient temperature.

Язык: Английский

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Visible-Light-Induced Acylative Pyridylation of Styrenes

Organic Letters, Год журнала: 2024, Номер 26(22), С. 4727 - 4732

Опубликована: Май 29, 2024

A visible-light-induced photocatalyst-free acylative pyridylation of styrenes with 4-acyl-1,4-dihydropyridines (DHPs) and 4-cyanopyridines has been described, featuring mild reaction conditions, a broad substrate scope, good functional group tolerance. The could also be performed under sunlight irradiation albeit slightly lower conversion. 4-Acyl-1,4-DHPs serve dual role, acting as both photoreductant to reduce the cyanopyridine its radical anion intermediate precursor produce acyl radical. mechanism was especially elucidated through Hammett analysis, quadratic linear regression analysis by using parameters, σmb σjj·. findings from further demonstrate that rate-limiting step process is single electron transfer between 4-acyl-1,4-DHPs 4-cyanopyridines.

Язык: Английский

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Oxygen-doped carbon nitride for enhanced photocatalytic activity in visible-light-induced decarboxylative annulation reactions

Journal of Catalysis, Год журнала: 2022, Номер 415, С. 28 - 36

Опубликована: Сен. 29, 2022

Язык: Английский

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Visible-Light-Driven Transition-Metal-Free Site-Selective Access to Isonicotinamides

Organic Letters, Год журнала: 2022, Номер 24(45), С. 8265 - 8270

Опубликована: Ноя. 7, 2022

The greener synthesis of N-substituted isonicotinamides is high importance and remains a significant challenge to the chemistry community. Herein we delineated visible-light-driven, transition-metal-free, external-oxidant-free radical-radical cross-coupling reaction access via consecutive photoinduced electron transfer (ConPET). utility this protocol highlighted through N-terminal modification peptides late-stage drugs.

Язык: Английский

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Recent Advances in Photoredox-Catalyzed Difunctionalization of Alkenes

Catalysts, Год журнала: 2023, Номер 13(7), С. 1056 - 1056

Опубликована: Июнь 30, 2023

Alkenes and their related analogs are ideal starting materials for organic synthesis, the selective difunctionalization of alkenes, which allows simultaneous introduction two neighboring bonds, has gained considerable attention in recent years. In particular, photoredox-catalyzed alkenes also been accomplished, regarded as an increasingly powerful tool synthesis miscellaneous interesting molecular scaffolds environmentally benign economical manner. Several exquisite strategies have developed to facilitate this transformation, such photosensitizer-catalyzed redox reactions, electron donor-acceptor (EDA) complexes-mediated photoreactions, atom transfer radical addition (ATRA) reactions. This literature review briefly describes most key progress on 1,2-difunctionalization various structurally diverse including 1,2-dicarbofunctionalization, 1,2-carboheterofunctionalization, 1,2-diheterofunctionalization, with a special emphasis mechanistic details.

Язык: Английский

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Radical Decyanations of Unactivated Carbon‐CN Bonds: Recent Achievements and Mechanistic Studies

Advanced Synthesis & Catalysis, Год журнала: 2023, Номер 365(13), С. 2058 - 2091

Опубликована: Май 17, 2023

Abstract Decyanation is an important process in the synthesis of aromatic molecules studies pharmaceutical research, medical and materials sciences. In late‐stage modifications privileged carbo/heterocyclic scaffolds, radical‐type decyanation techniques have been devised to date. As a result, chemistry cyano‐involved conversions, hotly debated subject over past few decades, has advanced significantly. The cyano group (CN), on other hand, rarely acknowledged as good reaction site due its thermodynamic robustness. most recent advancements catalytic radical protocols that CN behaved leaving made are surveyed this article. Following introduction number different modes, reactions used activate C−CN bonds primarily categorized, text herein divided into three groups: (1) photo‐catalyzed transformations, (2) electro‐catalyzed (3) transition‐metal‐catalyzed or metal‐free transformations. With emphasis systems synthetic applications bond activation, review will provide readers with overview reactions.

Язык: Английский

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