External photocatalyst-free C-H alkylation of N-sulfonyl ketimines with alkanes under visible light

Chinese Chemical Letters, Год журнала: 2023, Номер 34(9), С. 108509 - 108509

Опубликована: Апрель 28, 2023

Язык: Английский

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Radical relay cyclization/C–C bond formation of allyloxy-tethered aryl iodides with quinoxalin-2(1H)-ones via polysulfide anion photocatalysis

Organic & Biomolecular Chemistry, Год журнала: 2024, Номер 22(8), С. 1708 - 1713

Опубликована: Янв. 1, 2024

A visible-light-induced radical relay cyclization/C-C bond formation of quinoxalin-2(1

Язык: Английский

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TBAI/H2O-cooperative electrocatalytic decarboxylation coupling-annulation of quinoxalin-2(1H)-ones with N-arylglycines

Chinese Chemical Letters, Год журнала: 2022, Номер 34(7), С. 108036 - 108036

Опубликована: Дек. 5, 2022

Язык: Английский

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Uncovering the Potential of Boronic Acid and Derivatives as Radical Source in Photo(electro)chemical Reactions

Advanced Synthesis & Catalysis, Год журнала: 2022, Номер 364(10), С. 1643 - 1665

Опубликована: Апрель 25, 2022

Abstract The chemistry of boron compounds has been profoundly investigated in the last decades, leading to ubiquity many synthetic applications as well biologically active molecules. Since advent photoredox catalysis, an upsurge discovery suitable radical precursors witnessed, and is becoming a protagonist this field. Despite studies focused on trifluoroborates, use boronic acids esters have received much less attention regard. Because their high oxidation potential, development methods enable involvement photocatalyzed reactions only recent. Nonetheless, review summarizes novel strategies developed unlock role photochemical discloses potential that own, when intrinsic chemical properties are exploited. magnified image

Язык: Английский

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Three‐Component Reactions of Quinoxalin‐2(1H)‐ones: Recent Advances

European Journal of Organic Chemistry, Год журнала: 2023, Номер unknown

Опубликована: Сен. 11, 2023

Abstract The multicomponent reactions of quinoxalin‐2(1 H )‐ones has attracted considerable interest due to their significant biological and chemical activities. very recent advances (from 2021 the beginning 2023) on radical three‐component cascade reaction )‐one derivatives at C3 position were summarized in this mini‐review. According kind types involved, some representative examples detailed mechanism have been categorized discussed. red front was covered by Figure 1.

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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Photoinduced Dehydrogenative Amination of Quinoxalin-2(1H)-ones with Air as an Oxidant

The Journal of Organic Chemistry, Год журнала: 2024, Номер 89(8), С. 5371 - 5381

Опубликована: Март 29, 2024

A facile and eco-friendly photoinduced dehydrogenative amination of quinoxalin-2(1H)-ones with aliphatic amines without any metal, strong oxidant, photocatalyst has been established for the first time. This reaction proceeding efficiently air as sole oxidant at room temperature obtains a wide range 3-aminoquinoxaline-2(1H)-ones in high yields excellent functional group tolerance. The mechanistic studies show an interesting involvement photosensitizer, which eliminates requirement external photocatalysts.

Язык: Английский

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Visible-light-induced novel cyclization of 2-(2-(arylethynyl)benzylidene)-malononitrile derivatives with 2,6-di(tert-butyl)-4-methylphenol to bridged spirocyclic compounds

Chinese Chemical Letters, Год журнала: 2022, Номер 33(12), С. 5069 - 5073

Опубликована: Март 23, 2022

Язык: Английский

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Visible light-mediated radical-cascade addition/cyclization of arylacrylamides with aldehydes to form quaternary oxindoles at room temperature

Organic Chemistry Frontiers, Год журнала: 2022, Номер 9(13), С. 3506 - 3514

Опубликована: Янв. 1, 2022

The visible light-induced oxidative radical cascade coupling of N -arylacrylamides with aldehydes using bromide as the hydrogen atom transfer agent to synthesize functional oxindoles is described.

Язык: Английский

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Diverse catalytic systems for nitrogen-heterocycle formation from O-acyl ketoximes

Chinese Chemical Letters, Год журнала: 2022, Номер 34(1), С. 107565 - 107565

Опубликована: Май 28, 2022

Язык: Английский

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