Potassium 3-oxa-ω-fluorosulfonylperfluoropentanoate (FO2SCF2CF2OCF2CO2K), a low-temperature trifluoromethylating agent for organic halides; its α-carbon-oxygen bond fragmentation

Article abstract of DOI:10.1016/0022-1139(96)03438-0

The trifluoromethylation of organic halides with FO₂SCF₂CF₂OCF₂CO₂K (1) in DMF can be accomplished at 45 °C which is advantageous for thermally sensitive substrates. α-Carbon-oxygen bond fragmentation of 1 and the related β-carbon-oxygen bond scission are discussed.