Journal ArticleDOI
Visible-light-promoted acridine red catalyzed aerobic oxidative decarboxylative acylation of α-oxo-carboxylic acids with quinoxalin-2(1H)-ones
TLDR
Various 3-acyl quinoxalin-2(1H)-ones could be efficiently obtained in good yields with excellent functional group compatibility.Abstract:
A mild and facile visible-light-mediated strategy has been proposed for the synthesis of 3-acyl quinoxalin-2(1H)-ones through acridine red catalyzed aerobic oxidative decarboxylative acylation of α-oxo-carboxylic acids with quinoxalin-2(1H)-ones at room temperature in air. Various 3-acyl quinoxalin-2(1H)-ones could be efficiently obtained in good yields with excellent functional group compatibility.read more
Citations
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Journal ArticleDOI
Photoredox-Catalyzed C-H Functionalization Reactions.
TL;DR: The use of photoredox catalysis in C-H functionalization reactions has garnered enormous interest and utility in the past several decades as discussed by the authors, including natural product synthesis, drug discovery, radiolabeling, bioconjugation, materials, and fine chemical synthesis.
Journal ArticleDOI
Visible-light-induced three-component reaction of quinoxalin-2(1H)-ones, alkenes and CF3SO2Na leading to 3-trifluoroalkylated quinoxalin-2(1H)-ones
TL;DR: In this article, a facile and metal-free visible-light-enabled three-component reaction of quinoxalin-2(1H)-ones, alkenes and CF3SO2Na has been developed under air at room temperature.
Journal ArticleDOI
Visible-light-initiated malic acid-promoted cascade coupling/cyclization of aromatic amines and KSCN to 2-aminobenzothiazoles without photocatalyst
Wei-Bao He,Lan-Qing Gao,Xin-Jie Chen,Zhi-Lin Wu,Ying Huang,Zhong Cao,Xinhua Xu,Weimin He,Weimin He +8 more
TL;DR: By using ambient air as the oxidant and malic acid as the promoter, a practical method for the preparation of 2-aminobenzothiazoles through visible-light-initiated cascade reaction of aromatic amines and KSCN in eco-friendly bis(methoxypropy)ether under metal-, hazardous additive-, photocatalyst-free conditions was established.
Journal ArticleDOI
Aryl acyl peroxides for visible-light induced decarboxylative arylation of quinoxalin-2(1H)-ones under additive-, metal catalyst-, and external photosensitizer-free and ambient conditions
Long-Yong Xie,Sha Peng,Li-Hua Yang,Cun Peng,Ying-Wu Lin,Xianyong Yu,Zhong Cao,Yu-Yu Peng,Wei-Min He +8 more
TL;DR: Aryl radicals were generated for the first time from cheap and easily available aryl acyl peroxides in eco-friendly ethyl acetate under ambient conditions and visible-light illumination in the absence of any additive, metal catalyst, or external photosensitizer.
Journal ArticleDOI
Synergistic cooperative effect of CF3SO2Na and bis(2-butoxyethyl)ether towards selective oxygenation of sulfides with molecular oxygen under visible-light irradiation
Kai-Jian Liu,Zheng Wang,Ling-Hui Lu,Jin-Yang Chen,Fei Zeng,Ying-Wu Lin,Zhong Cao,Xianyong Yu,Wei-Min He +8 more
TL;DR: In this article, a safe, practical and eco-friendly method for the switchable synthesis of sulfoxides and sulfones through visible-light-initiated oxygenation of sulfides at ambient temperature under transition-metal-, additives-free and minimal solvent conditions was proposed.
References
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Journal ArticleDOI
Visible Light Photoredox Catalysis with Transition Metal Complexes: Applications in Organic Synthesis
TL;DR: The conversion of these bench stable, benign catalysts to redox-active species upon irradiation with simple household lightbulbs represents a remarkably chemoselective trigger to induce unique and valuable catalytic processes.
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Visible light photoredox-controlled reactions of N-radicals and radical ions
TL;DR: This tutorial review highlights recent advances in this rapidly developing area with particular emphases put on the working models and new reaction design in visible light photoredox catalysis.
Journal ArticleDOI
Quenching of singlet oxygen by tertiary aliphatic amines. Effect of DABCO (1,4-diazabicyclo[2.2.2]octane)
Catherine Ouannes,Thérèse Wilson +1 more
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Visible‐Light‐Mediated Decarboxylation/Oxidative Amidation of α‐Keto Acids with Amines under Mild Reaction Conditions Using O2
TL;DR: A novel, simple, and efficient radical oxidative decarboxylative coupling with the assistant of the photocatalyst [Ru(phen)3 ]Cl2 is described, and various functional groups are well-tolerated in this reaction and thus provides a new approach to developing advanced methods for aerobic oxidative decarations.
Journal ArticleDOI
Visible light-driven organic photochemical synthesis in China
TL;DR: Wang et al. as discussed by the authors summarized their representative work according to the following categories: C-H functionalization, synthesis of aromatic aza-heterocycles, asymmetric organic photochemical synthesis, transformations of small molecules and biomolecule-compatible reactions.