| abstract |
Kind Code: A1 An oxidation process for preparing fluorinated carboxylic acids is provided that has an inexpensive, efficient and readily available starting material that is useful on an industrial scale. A method for preparing a fluorinated carboxylic acid and a salt thereof, wherein the fluorinated alcohol of formula (A) comprises at least one first oxidant and at least one second oxidant. A step of obtaining a highly fluorinated carboxylic acid of formula (B) or a salt thereof by exposure to. Formula (A): A-CH2-OH, Formula (B): A-COO-M + [M + is a cation; A is a residue: Rf- [O] p-CX "Y"-[O] m-CX ' Y '-[O] n-CXY- and the like (Rf is a fluorinated alkyl residue which may contain catenary O; p, m and n are each independently 1 or 0; X, X', X ", Y, Y 'and Y "are H, F, CF3 or C2F5)] [selection figure] None |