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

YJ Jang, H An, S Choi, J Hong, SH Lee, KH Ahn… - Organic …, 2022 - ACS Publications
YJ Jang, H An, S Choi, J Hong, SH Lee, KH Ahn, Y You, EJ Kang
Organic Letters, 2022•ACS Publications
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 …
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.
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