Patent ID: 9024058
Filing Date: 2015-05-05
Classification: C07C,G03F

Abstract:
1. A method for synthesizing an onium fluoroalkanesulfonate represented by general formula [5] comprising the steps of: (1) a sulfination step of reacting a bromofluoroalcohol represented by general formula [1] with a sulfinating agent in the presence of amine, thereby obtaining an ammonium hydroxyfluoroalkanesulfinate represented by general formula [2] (2) an oxidation step of reacting the ammonium hydroxyfluoroalkanesulfinate represented by general formula [2] and obtained by the 1 (3) an esterification step of reacting the ammonium hydroxyfluoroalkanesulfonate represented by general formula [3] and obtained by step (2) with a carboxylic acid derivative represented by general formula [6] or general formula [7] thereby obtaining an ammonium fluoroalkanesulfonate represented by general formula [4] (4) performing an onium salt-exchange by using a monovalent onium salt represented by general formula [8] wherein A and mixtures thereof; X mutually independently represents a hydrogen atom or fluorine atom; n represents an integer of 0 to 8; X′ represents a hydroxyl group or a halogen; R represents a linear or branched alkyl group having 1 to 10 carbon atoms, a linear or branched alkenyl group having 1 to 10 carbon atoms and a polymerizable double bond at least at the end moiety, an alicyclic organic group having 3 to 20 carbon atoms, an organic group having 3 to 20 carbon atoms and containing an alicyclic organic group and a linear alkylene group, a monocyclic or polycyclic lactone having 3 to 30 carbon atoms, or an aryl group having 6 to 20 carbon atoms, wherein one or more hydrogen atoms in the alkyl group, the alkenyl group, the alicyclic organic group, the organic group containing the alicyclic organic group and the linear alkylene group, the monocyclic or polycyclic lactone or the aryl group may be substituted with fluorine, a hydroxyl group, a hydroxycarbonyl group, or a linear, branched or cyclic alkoxy group having 1 to 6 carbon atoms, two hydrogen atoms on the same carbon that constructs the alkyl group, the alkenyl group, the alicyclic organic group, or the organic group containing the alicyclic organic group and the linear alkylene group may be substituted with one oxygen atom to form a keto group, and one hydrogen atom on the alkyl group may be substituted with 2-acryloyloxy group, a 2-methacryloyloxy group or a 2-trifluoromethacryloyloxy group; Q wherein R R m represents an integer of 1 to 5; q represents an integer of 0 (zero) to 5, and n represents 0 (zero) or 1 in general formula (b) and general formula (c).