Ferrocene-Mediated Photocatalytic Annulation of N-Sulfonyl Ketimines on a Polycrystalline WSe₂ Semiconductor Photocatalyst

ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(19), P. 13071 - 13076

Published: Sept. 22, 2023

A merger of heterogeneous polycrystalline WSe2 semiconductor photocatalysis and homogeneous ferrocene redox catalysis for the cascade radical coupling-annulation reactions was established. In redox-mediated photocatalysis, can improve separation photogenerated hole–electron pairs on by consuming hole via formation a cation, which triggered molecular transformations. Various benzo[e]imidazo[1,5-c][1,2,3]oxathiazine 5,5-dioxides were formed through semiheterogeneous three-component reaction N-sulfonyl ketimines, N-arylglycines, formaldehyde.

Language: Английский

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

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(20), P. 7983 - 7987

Published: Jan. 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.

Language: Английский

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

Chemical Communications, Journal Year: 2023, Volume and Issue: 59(94), P. 14029 - 14032

Published: Jan. 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.

Language: Английский

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

Organic & Biomolecular Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 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.

Language: Английский

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Photoelectrochemical upcycling of PVC plastic waste for the synthesis of chlorinated quinolinone derivatives

Organic Chemistry Frontiers, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Herein, an environmentally friendly methodology has been established for the photoelectrochemical chlorination of C(sp 2 )–H bonds in quinolinone derivatives using PVC plastic waste as chlorine source.

Language: Английский

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

European Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: unknown

Published: Sept. 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.

Language: Английский

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Electrochemical radical annulation of 2-alkynyl biaryls with diselenides under catalyst- and chemical oxidant-free conditions

Chinese Chemical Letters, Journal Year: 2023, Volume and Issue: 34(12), P. 108699 - 108699

Published: June 17, 2023

Language: 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, Journal Year: 2024, Volume and Issue: 35(11), P. 109683 - 109683

Published: March 2, 2024

Language: Английский

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

The Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 89(15), P. 10654 - 10659

Published: July 17, 2024

With an inexpensive and commercially available WO

Language: Английский

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Electrochemical multicomponent [2+2+1] cascade cyclization of enaminones and primary amines towards the synthesis of 4-acylimidazoles

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(19), P. 2677 - 2680

Published: Jan. 1, 2024

An electrochemical multicomponent [2+2+1] cascade cyclization of enaminones and primary amines towards the synthesis 4-acylimidazoles has been developed. In an undivided cell, can smoothly participate in this reaction to provide a series 1,2-disubstituted at room temperature. The avoids use both transition-metal catalysts oxidation reagents, which makes it more sustainable renewable.

Language: Английский

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