Journal of Fluorine Chemistry p. 371 - 378 (1989)
Update date:2022-08-11
Topics:
O'Hagan, D.
A method is outlined for the preparation of monofluorocarboxylic acids using Ishikawa's reagent, (C2H5)2NCF2CHFCF3 (PPDA), directly from hydroxyesters, or indirectly from monofluorinated alkylbenzenes, followed by the oxidation of the phenyl ring to a carboxylic acid.The chiral fluorocarboxylic acids, (2S) and (2R)-3-fluoro-2-methylpropionates (>99percent ee) and (2S)-2-fluoropropionic acid (55percent ee) are prepared as are 3-fluoropropionate and 4-fluorobutyrate.
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