Ethylene Glycol: A Green Solvent for Visible Light‐Promoted Aerobic Transition Metal‐Free Cascade Sulfonation/Cyclization Reaction

Ethylene Glycol: A Green Solvent for Visible Light‐Promoted Aerobic Transition Metal‐Free Cascade Sulfonation/Cyclization Reaction

With ethylene glycol as a green solvent, a general transition metal‐free photocatalytic system using 9‐mesityl‐10‐methylacridinium perchlorate (Acr+−Mes ⋅ ClO4−) as catalyst was developed for the synthesis of sulfone‐containing heterocycles including thioflavones, oxindoles, and quinoline‐2,4(1H,3H)...

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Veröffentlicht in:Advanced synthesis & catalysis 2020-07, Vol.362 (13), p.2609-2614
Hauptverfasser: Jiang, Yu‐Qin, Li, Jing, Feng, Zhi‐Wen, Xu, Gui‐Qing, Shi, Xin, Ding, Qing‐Jie, Li, Wei, Ma, Chun‐Hua, Yu, Bing
Format: Artikel
Sprache:eng
Schlagworte:
Cascade chemical reactions
Chemical reactions
Chemical synthesis
Chemistry
Chemistry, Applied
Chemistry, Organic
Cyclization
Ethylene glycol
Green solvent
Heterocycles
Photocatalysis
Physical Sciences
Quinoline
Room temperature
Science & Technology
Solvents
Sulfonation
Transition metals
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Zusammenfassung:With ethylene glycol as a green solvent, a general transition metal‐free photocatalytic system using 9‐mesityl‐10‐methylacridinium perchlorate (Acr+−Mes ⋅ ClO4−) as catalyst was developed for the synthesis of sulfone‐containing heterocycles including thioflavones, oxindoles, and quinoline‐2,4(1H,3H)‐diones through the cascade sulfonation/cyclization reactions under the irradiation of blue light at room temperature.
ISSN:1615-4150
1615-4169
DOI:10.1002/adsc.202000233