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Photoinduced Electron Transfer-Promoted Reactions Using Exciplex-Type Organic Photoredox Catalyst Directly Linking Donor and Acceptor Arenes.

ABSTRACT: Directly linked donor and acceptor arenes, such as phenanthrene/naphthalene/biphenyl and 1,3-dicyanobenzene were found to work as photoredox catalysts in the photoreactions of indene, 2,3-dimethyl-2-butene, and 4-methoxyphenylacetic acid. The new stable organic photocatalyst forms an intramolecular exciplex (excited complex) when irradiated in a polar solvent and shows redox catalyst activity, even at low concentrations. To the best of our knowledge, this is the first example of an intramolecular exciplex working as a redox catalyst.

SUBMITTER: Yamawaki M

PROVIDER: S-EPMC6943656 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Photoinduced Electron Transfer-Promoted Reactions Using Exciplex-Type Organic Photoredox Catalyst Directly Linking Donor and Acceptor Arenes.

Yamawaki Mugen M Asano Akiko A Furutani Toshiki T Izumi Yuki Y Tanaka Yosuke Y Osaka Kazuyuki K Morita Toshio T Yoshimi Yasuharu Y

Molecules (Basel, Switzerland) 20191205 24

Directly linked donor and acceptor arenes, such as phenanthrene/naphthalene/biphenyl and 1,3-dicyanobenzene were found to work as photoredox catalysts in the photoreactions of indene, 2,3-dimethyl-2-butene, and 4-methoxyphenylacetic acid. The new stable organic photocatalyst forms an intramolecular exciplex (excited complex) when irradiated in a polar solvent and shows redox catalyst activity, even at low concentrations. To the best of our knowledge, this is the first example of an intramolecula ...[more]

PMID: 31817353

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Exciplex emissions derived from exceptionally long-distance donor and acceptor molecules.

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Hg(OTf)2 Catalyzed Intramolecular 1,4-Addition of Donor-Acceptor Cyclopropenes to Arenes.

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A chiral nickel DBFOX complex as a bifunctional catalyst for visible-light-promoted asymmetric photoredox reactions.

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