Process for producing fluorine-containing alkylsulfonylaminoethyl α-substituted acrylate

A process for producing a fluorine-containing alkylsulfonylaminoethyl α-substituted acrylate represented by general formula [3]:

• which comprises reacting an aminoethyl α-substituted acrylate represented by general formula [1a]:
• with a fluorine-containing alkylsulfonyl fluoride represented by general formula [2a] or a fluorine-containing alkylsulfonic anhydride represented by general formula [2b]:
• or reacting a salt of an aminoethyl α-substituted acrylate represented by general formula [1b]:
• with a fluorine-containing alkylsulfonyl halide represented by general formula [2a] or a fluorine-containing alkylsulfonic anhydride represented by general formula [2b] in the presence of a base,
• wherein R1 is a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a sec-butyl group, a tert-butyl group, a fluoromethyl group, a difluoromethyl group, a trifluoromethyl group, or a perfluoroethyl group;
• R2 is a fluorine-containing alkyl group;
• Xn− is a counter anion, wherein n is a positive integer;
• and Y is a fluorine atom.