Journal
ASIAN JOURNAL OF ORGANIC CHEMISTRY
Volume 7, Issue 4, Pages 711-714Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ajoc.201800036
Keywords
indoles; oxidation; photocatalysis; quinolones; synthetic methods
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Funding
- National Natural Science Foundation of China [21602187, 21502161]
- Collaborative Innovation Center of New Chemical Technologies for Environmental Benignity and Efficient Resource Utilization, Scientific Research Fund of Hunan Provincial Education Department [16B251]
- China Postdoctoral Science Foundation [2015M580691]
- Hunan Provincial Natural Science Foundation of China [2017JJ3299]
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A one-pot synthesis of 4-quinolones starting from indoles is disclosed. This cascade reaction involves a photocatalytic aerobic oxidation of indoles using visible light and a subsequent base-promoted Camps cyclization. The advantages of the present protocol include the use of environmentally benign and inexpensive oxygen as the sole oxidant, easy handling at room temperature, as well as step- and atom-economy.
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