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Photoinduced C(sp)-H Chalcogenation of Amide Derivatives and Ethers via Ligand-to-Metal Charge-Transfer. | LitMetric
A photoinduced, iron(III) chloride-catalyzed C-H activation of -methyl amides and ethers leads to the formation of C-S and C-Se bonds via a ligand-to-metal charge transfer (LMCT) process. This methodology converts secondary and tertiary amides, sulfonamides, and carbamates into the corresponding amido--acetal derivatives in good yields. Mechanistic work revealed that this transformation proceeds through a hydrogen atom transfer (HAT) involving chlorine radical intermediates.
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