Photocatalyzed C3-α-aminoalkylation of quinoxalin-2(1H)-ones with amino acid-derived oxime esters under metal-free conditions

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 573, P. 114795 - 114795

Published: Jan. 5, 2025

Language: Английский

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Photo-mediated radical relay oximinosulfonamidation of alkenes with N-nitrosamines triggered by DABSO

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(13), P. 7849 - 7856

Published: Jan. 1, 2024

N -Nitrosamines represent a class of bifunctional nitrogen-radical precursors, but their application potential remains largely unexplored.

Language: Английский

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Emerging progress: photochemical transformation of nitroso compounds

Science China Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: July 17, 2024

Language: Английский

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Visible-Light-Promoted Deoxygenative Alkylation of Quinoxalin-2(1H)-ones with Activated Alcohols

The Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 89(9), P. 6334 - 6344

Published: April 15, 2024

A one-pot strategy for deoxygenative alkylation of alcohols with quinoxalin-2(1H)-ones was developed by using xanthate salts as alcohol-activating groups radical generation in the presence tricyclohexylphosphine under visible-light-promoted conditions. The remarkable features this reaction include a broad substrate scope, excellent functional group tolerance, mild conditions, and simple operation. Moreover, synthetic utility validated success two-step reactions, scale-up synthesis, chemoselective monodeoxygenation diols.

Language: Английский

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An Intramolecular Nitroso-Meerwein–Ponndorf–Verley–Oppenauer Reaction to Access Fused Pyrrolidine Scaffolds

Organic Letters, Journal Year: 2024, Volume and Issue: 26(2), P. 450 - 455

Published: Jan. 8, 2024

δ-Hydroxy chloronitroso compounds generated in situ from 1,2-oxazine N-oxides undergo a 1,5-hydride transfer related to the Meerwein–Ponndorf–Verley–Oppenauer reaction. Based on process discovered, three-step access fused pyrrolidine scaffolds containing up four contiguous stereogenic centers starting simple nitrostyrenes and cycloalkenes or cyclodienes has been developed. The suggested reaction mechanism was confirmed by UV–vis ATR FT-IR monitoring DFT calculations.

Language: Английский

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Electric-field-controlled highly regioselective thiocyanation of N-containing heterocycles

Science China Chemistry, Journal Year: 2024, Volume and Issue: 67(4), P. 1263 - 1269

Published: Feb. 7, 2024

Language: Английский

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Visible-light-induced photocatalyst- and metal-free radical phosphinoyloximation of alkenes with tert-butyl nitrite as bifunctional reagent

Chinese Chemical Letters, Journal Year: 2024, Volume and Issue: unknown, P. 110425 - 110425

Published: Oct. 1, 2024

Language: Английский

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Recent advancements in visible-light-induced direct C(3)–H functionalization of quinoxalin-2(1H)-ones

Green Synthesis and Catalysis, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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Visible Light-Induced Sequential Nitrogen Insertion and Benzotriazolation of Quinoxaline-2(1H)-ones

Organic Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

Herein, we report a visible light-mediated sequential reaction involving in situ generation of benzotriazole from benzene-1,2-diamine and tert-butyl nitrite via nitrogen insertion concomitant cross-coupling with quinoxaline-2(1H)-ones C-N bond formation one pot. This protocol uses metal-free mild conditions demonstrated 36 examples ≤80% yield wide functional group tolerance.

Language: Английский

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Visible-light-induced C–S bond formation of pyrazolin-5-ones with thioureas to pyrazol-4-yl carbamimidothioates

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 580, P. 115086 - 115086

Published: April 8, 2025

Language: Английский

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