Visible-Light Excitation of Quinolinone-Containing Substrates Enables Divergent Radical Cyclizations

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Reported herein is the photochemical activity of quinolinone-containing substrates that directly reach an excited state upon light absorption to trigger radical-based bond-forming processes. The presented transformations allow divergent construction of valuable dihydro- or tetrahydrophenanthridin-6(5H)-ones through the generation of S- or P-centered radicals, subsequent radical addition, cyclization, and a hydrogen atom transfer/electron transfer sequence. This strategy demonstrates the potential generality of quinolinone-tethered substrates to directly participate in the photoexcitation for the development of useful synthetic methods.
Publisher
AMER CHEMICAL SOC
Issue Date
2019-05
Language
English
Article Type
Article
Citation

ORGANIC LETTERS, v.21, no.9, pp.3417 - 3421

ISSN
1523-7060
DOI
10.1021/acs.orglett.9b01155
URI
http://hdl.handle.net/10203/262720
Appears in Collection
CH-Journal Papers(저널논문)
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