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- W2945809505 abstract "Photocycloadditions are often typified by the oxetane-forming Paternò–Büchi reaction. However, the mechanistic constraints of carbonyl excitation and olefin interception have limited this attractive oxetane-forming pathway. Here we describe the use of a Cu(I) precatalyst that achieves selective olefin activation via coordination to the metal center. Significantly, this intermolecular 2 + 2 carbonyl–olefin photocycloaddition engages alkyl ketones, which are more challenging to accommodate via direct irradiation pathways. Mechanistic investigations support the in situ formation of a Cu–norbornene resting state that undergoes a MLCT leading to oxetane formation." @default.
- W2945809505 created "2019-05-29" @default.
- W2945809505 creator A5029024835 @default.
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- W2945809505 date "2019-05-22" @default.
- W2945809505 modified "2023-10-17" @default.
- W2945809505 title "Intermolecular 2 + 2 Carbonyl–Olefin Photocycloadditions Enabled by Cu(I)–Norbornene MLCT" @default.
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- W2945809505 doi "https://doi.org/10.1021/jacs.9b03775" @default.
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