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- W4308299612 abstract "In recent years, carbon-fluorine (C-F) bond transformation for organic synthesis has been remarkably developed. Herein, we describe four types of C-F bond transformation mediated by Lewis acids: (1) C(sp2)-F bond transformation of gem-difluoroalkenes through oxyindation/β-fluorine elimination to afford fluorinated isocoumarins; (2) B(C6F5)3-catalyzed substitution of fluorine in 1-fluorostyrenes with silyl ketene acetals via abstraction of F− by in situ generated silylium ions; (3) BF3-catalyzed formal insertion of diazoesters into the C-F bonds of benzylic fluorides; and, (4) photoredox catalyst/Lewis acidic Sn species-mediated C(sp3)-F bond allylation of perfluoroalkylarenes. Density functional theory (DFT) study of the reaction mechanisms suggests the importance of choosing the appropriate Lewis acid to achieve an appropriate activation method for the C-F bonds in each reaction." @default.
- W4308299612 created "2022-11-10" @default.
- W4308299612 creator A5045731293 @default.
- W4308299612 creator A5083634150 @default.
- W4308299612 date "2022-11-01" @default.
- W4308299612 modified "2023-10-16" @default.
- W4308299612 title "Lewis Acid-mediated Carbon-Fluorine Bond Transformation: Substitution of Fluorine and Insertion into a Carbon-Fluorine Bond" @default.
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