期刊
ASIAN JOURNAL OF ORGANIC CHEMISTRY
卷 10, 期 4, 页码 799-802出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ajoc.202100118
关键词
ortho-Quinone methides; 4H-chromenes; photoredox reaction; multicomponent reaction
资金
- Basic Science Research Program through the National Research Foundation of Korea [NRF-2019-R1F1A1059821]
- Soonchunhyang University Research Fund
A new visible light-mediated photocatalytic approach has been developed for the multicomponent synthesis of trifluoromethylated 4H-chromenes from 2-vinyl phenols via trifluoromethylation, oxidation, and cycloaddition reactions, involving the in situ generation of o-quinone methides followed by sequential cyclization.
Visible light-mediated photocatalytic trifluoromethylation, single electron transfer (SET) oxidation, and cycloaddition cascades of 2-vinyl phenols with Umemoto's reagent and malononitrile were developed. This approach provided the multicomponent synthesis of trifluoromethylated 4H-chromenes via the in situ generation of o-quinone methides, followed by sequential cyclization.
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