Green-Light-Driven Fe(III)(btz)3 Photocatalysis in the Radical Cationic [4+2] Cycloaddition Reaction

Green-light-driven FeIII(btz)3 photocatalysis for the radical cationic [4+2] cycloaddition of terminal styrenes and nucleophilic dienes has been investigated. The Fe-MIC (mesoionic carbene) complex forms a ligand-to-metal charge-transfer transition state with relatively high excited-state reduction...

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Bibliographic Details
Published in:Organic letters 2022-06, Vol.24 (24), p.4479-4484
Main Authors: Jang, Yu Jeong, An, Hyeju, Choi, Seunghee, Hong, Jayeon, Lee, Seung Hyun, Ahn, Kwang-Hyun, You, Youngmin, Kang, Eun Joo
Format: Article
Language:English
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Summary:Green-light-driven FeIII(btz)3 photocatalysis for the radical cationic [4+2] cycloaddition of terminal styrenes and nucleophilic dienes has been investigated. The Fe-MIC (mesoionic carbene) complex forms a ligand-to-metal charge-transfer transition state with relatively high excited-state reduction potentials that can selectively oxidize terminal styrene derivatives. Unique multisubstituted cyclohexenes and structurally complex biorelevant cyclohexenes were constructed, highlighting the usefulness of this mild and practical first-row transition metal complex system.
ISSN:1523-7060
1523-7052
DOI:10.1021/acs.orglett.2c01779