Migrative Carbofluorination of Saturated Amides Enabled by Pd-Based Dyotropic Rearrangement
Directly editing an all-carbon quaternary carbon itself of nonstrained acyclic molecules remains underexploited despite the recent advances in the fields of both C–H and C–C bond activation. Herein, we report a palladium-catalyzed migrative carbofluorination of saturated amides enabled by the activation of both the C(sp3)–H and the Cquaternary–Cσ bonds. In this transformation, the α-quaternary carbon of Weinreb amides is converted to α-tertiary fluoride with concurrent migration of an aryl or an amido group from the α- to β-carbon. DFT calculations indicate that the dyotropic rearrangement proceeds through an unusual anti-selective [2.1.0] bicyclic transition state. The reaction, compatible with a broad range of functional groups, is stereospecific and is applicable to the synthesis of enantioenriched products.
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Yang, G., Wu, H., Gallarati, S., Corminboeuf, C., Wang, Q., & Zhu, J. (2022). Migrative Carbofluorination of Saturated Amides Enabled by Pd-Based Dyotropic Rearrangement. Journal of the American Chemical Society, 144(31), 14047–14052. https://doi.org/10.1021/jacs.2c06578
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2022-08-02
144
31
14047
14052
REVIEWED
EPFL