Abstract: Disclosed is a process for producing ?-substituted norbornanyl acrylates efficiently on an industrial scale while suppressing the formation of by-products derived from intramolecular cyclization, excessive addition to acrylic acid etc. The ?-substituted norbornanyl acrylates are useful as norbornene resist monomers. In the disclosed process, an ?-substituted acrylic acid is directly reacted with a substituted norbornene in the presence of at least one acid catalyst selected from methanesulfonic acid and camphorsulfonic acid. It is possible in this reaction to suppress the formation of the by-products derived from intramolecular cyclication, excessive addition of the acid to the reaction product etc.

Abstract: There is provided a process for producing a fluorine-containing alkylsulfonylaminoethyl ?-substituted acrylate of the formula [3] by reaction of an aminoethyl ?-substituted acrylate of the formula [1a] with a fluorine-containing alkylsulfonic fluoride of the formula [2], or by reaction of an aminoethyl a-substituted acrylate salt of the formula [1b] with a fluorine-containing alkylsulfonic fluoride of the formula [2] in the presence of a base, wherein a fluorine-containing compound is used as a reaction solvent: where R1 is a hydrogen atom, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tertbutyl group, fluoromethyl group, difluoromethyl group, trifluoromethyl group or perfluoroethyl group; R2 is a fluorine-containing alkyl group having a carbon number of 1 to 6; Xn? is a counter anion (n is a positive integer); and Y is a fluorine atom, chlorine atom or bromine atom.

Abstract: There is provided a process for producing a fluorine-containing alkylsulfonylaminoethyl ?-substituted acrylate of the formula [3] by reaction of an aminoethyl ?-substituted acrylate of the formula [1a] with a fluorine-containing alkylsulfonic fluoride of the formula [2], or by reaction of an aminoethyl a-substituted acrylate salt of the formula [1b] with a fluorine-containing alkylsulfonic fluoride of the formula [2] in the presence of a base, wherein a fluorine-containing compound is used as a reaction solvent: where R1 is a hydrogen atom, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tertbutyl group, fluoromethyl group, difluoromethyl group, trifluoromethyl group or perfluoroethyl group; R2 is a fluorine-containing alkyl group having a carbon number of 1 to 6; Xn? is a counter anion (n is a positive integer); and Y is a fluorine atom, chlorine atom or bromine atom.

Abstract: The present invention provides a process for producing a fluorine-containing alkylsulfonylaminoethyl ?-substituted acrylate represented by general formula [3]: which comprises reacting an aminoethyl ?-substituted acrylate represented by general formula [1a] or a salt thereof: with a fluorine-containing alkylsulfonyl halide represented by general formula [2a] or a fluorine-containing alkylsulfonic anhydride represented by general formula [2b]:

Abstract: The present invention provides a process for producing a fluorine-containing alkylsulfonylaminoethyl ?-substituted acrylate represented by general formula [3]: which comprises reacting an aminoethyl ?-substituted acrylate represented by general formula [1a]or a salt thereof: with a fluorine-containing alkylsulfonyl halide represented by general formula [2a] or a fluorine-containing alkylsulfonic anhydride represented by general formula [2b]: .

Abstract: The invention relates to a process for producing 1,1,3,3-tetrachloro-1,3-difluoroacetone. This process includes fluorinating hexachloroacetone in a liquid phase by hydrogen fluoride in the presence of a catalyst containing a metal compound. This metal compound can be selected from tin halides, titanium halides, molybdenum halides, tungsten halides, niobium halides, tantalum halides, and iron halides. This process is suitable for producing 1,1,3,3-tetrachloro-1,3-difluoroacetone in an industrial scale.

Abstract: The invention relates to a process for producing 1,1,3,3-tetrachloro-1,3-difluoroacetone. This process includes fluorinating hexachloroacetone in a liquid phase by hydrogen fluoride in the presence of a catalyst containing a metal compound. This metal compound can be selected from tin halides, titanium halides, molybdenum halides, tungsten halides, niobium halides, tantalum halides, and iron halides. This process is suitable for producing 1,1,3,3-tetrachloro-1,3-difluoroacetone in an industrial scale.

Abstract: A process for producing 1,1,1-trifluoroacetone includes the step of conducting a hydrogenolysis of a halogenated trifluoroacetone, which is represented by the general formula (1), by a hydrogen gas in the presence of a catalyst containing a transition metal, where X represents a chlorine, bromine or iodine, and n represents an integer from 1 to 3. It is possible to obtain 1,1,1-trifluoroacetone with a high yield by using the special catalyst.

Abstract: A process for producing 1,1,1-trifluoroacetone includes the step of conducting a hydrogenolysis of a halogenated trifluoroacetone, which is represented by the general formula (1), by a hydrogen gas in the presence of a catalyst containing a transition metal, 1

Abstract: A process of producing chlorofluoroacetones represented by a general formula where X represents independently chlorine atom or fluorine atom. The production process comprises fluorinating in a liquid phase pentachloroacetone by hydrogen fluoride in the presence of a catalyst comprising tin tetrahalide.

Abstract: The invention relates to a method for producing 3,3-dichloro-1,1,1-trifluoroacetone. This method includes a step of fluorinating pentachloroacetone by hydrogen fluoride in the presence of a fluorination catalyst. This fluorination may be conducted in a liquid phase in the presence of an antimony compound as the fluorination catalyst. Alternatively, the fluorination may be conducted in a gas phase in the presence of a fluorination catalyst which may be a fluorinated alumina or at least one compound of at least one metal selected from Al, Cr, Mn, Ni, and Co. The method is suited to an industrial scale production of 3,3-dichloro-1,1,1-trifluoroacetone. The invention further relates to another method for producing 3,3-dichloro-1,1,1-trifluoroacetone.