WO2010104177A1 - フルオロアルカンスルホン酸アンモニウム塩類およびその製造方法 - Google Patents
フルオロアルカンスルホン酸アンモニウム塩類およびその製造方法 Download PDFInfo
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- WO2010104177A1 WO2010104177A1 PCT/JP2010/054245 JP2010054245W WO2010104177A1 WO 2010104177 A1 WO2010104177 A1 WO 2010104177A1 JP 2010054245 W JP2010054245 W JP 2010054245W WO 2010104177 A1 WO2010104177 A1 WO 2010104177A1
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- 0 CC(C1NC1(C)C(*)(*)C(F)(F)Br)OC(*)=O Chemical compound CC(C1NC1(C)C(*)(*)C(F)(F)Br)OC(*)=O 0.000 description 9
- SMWDFEZZVXVKRB-UHFFFAOYSA-N c1ccc2ncccc2c1 Chemical compound c1ccc2ncccc2c1 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- WWLLVUCMGOXPLF-SNAWJCMRSA-N CC(C(C/C=C/COC(c(cccc1)c1F)=O)(F)F)(F)F Chemical compound CC(C(C/C=C/COC(c(cccc1)c1F)=O)(F)F)(F)F WWLLVUCMGOXPLF-SNAWJCMRSA-N 0.000 description 1
- QZVVKEGYCSCZME-UHFFFAOYSA-N CC(C(C1)C2)C(CO3)C1C2C3=O Chemical compound CC(C(C1)C2)C(CO3)C1C2C3=O QZVVKEGYCSCZME-UHFFFAOYSA-N 0.000 description 1
- LABOHEYNFANBLN-UHFFFAOYSA-N CC(C1CC2C3C1)C3OC2=O Chemical compound CC(C1CC2C3C1)C3OC2=O LABOHEYNFANBLN-UHFFFAOYSA-N 0.000 description 1
- XMJQLTBGQXDGFR-UHFFFAOYSA-N CS(C(C(CCCCOC(c1cc(F)cc(F)c1)=O)(F)F)(F)F)(=O)=O Chemical compound CS(C(C(CCCCOC(c1cc(F)cc(F)c1)=O)(F)F)(F)F)(=O)=O XMJQLTBGQXDGFR-UHFFFAOYSA-N 0.000 description 1
- WYNBLPIPHHBHDK-UHFFFAOYSA-N Cc1c(cc23)[o]c2c1OC3=O Chemical compound Cc1c(cc23)[o]c2c1OC3=O WYNBLPIPHHBHDK-UHFFFAOYSA-N 0.000 description 1
- FKNQCJSGGFJEIZ-UHFFFAOYSA-N Cc1ccncc1 Chemical compound Cc1ccncc1 FKNQCJSGGFJEIZ-UHFFFAOYSA-N 0.000 description 1
- ZPIDBAUOMRMIBX-UHFFFAOYSA-N O=C(c1ccc[o]1)OCCCCC(C(F)(F)S(=O)=O)(F)F Chemical compound O=C(c1ccc[o]1)OCCCCC(C(F)(F)S(=O)=O)(F)F ZPIDBAUOMRMIBX-UHFFFAOYSA-N 0.000 description 1
- HZMXGSWEXHRLOF-UHFFFAOYSA-N O=C(c1cccc(F)c1)OCCCCC(C(F)(F)S(=O)=O)(F)F Chemical compound O=C(c1cccc(F)c1)OCCCCC(C(F)(F)S(=O)=O)(F)F HZMXGSWEXHRLOF-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N OCCN(CCO)CCO Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C313/00—Sulfinic acids; Sulfenic acids; Halides, esters or anhydrides thereof; Amides of sulfinic or sulfenic acids, i.e. compounds having singly-bound oxygen atoms of sulfinic or sulfenic groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
- C07C313/02—Sulfinic acids; Derivatives thereof
- C07C313/04—Sulfinic acids; Esters thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/32—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of salts of sulfonic acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- C07C309/01—Sulfonic acids
- C07C309/02—Sulfonic acids having sulfo groups bound to acyclic carbon atoms
- C07C309/03—Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
- C07C309/07—Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing oxygen atoms bound to the carbon skeleton
- C07C309/12—Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing oxygen atoms bound to the carbon skeleton containing esterified hydroxy groups bound to the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C381/00—Compounds containing carbon and sulfur and having functional groups not covered by groups C07C301/00 - C07C337/00
- C07C381/12—Sulfonium compounds
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/0045—Photosensitive materials with organic non-macromolecular light-sensitive compounds not otherwise provided for, e.g. dissolution inhibitors
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/06—Systems containing only non-condensed rings with a five-membered ring
- C07C2601/08—Systems containing only non-condensed rings with a five-membered ring the ring being saturated
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2602/00—Systems containing two condensed rings
- C07C2602/36—Systems containing two condensed rings the rings having more than two atoms in common
- C07C2602/42—Systems containing two condensed rings the rings having more than two atoms in common the bicyclo ring system containing seven carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/56—Ring systems containing bridged rings
- C07C2603/58—Ring systems containing bridged rings containing three rings
- C07C2603/70—Ring systems containing bridged rings containing three rings containing only six-membered rings
- C07C2603/74—Adamantanes
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/0046—Photosensitive materials with perfluoro compounds, e.g. for dry lithography
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
Definitions
- the present invention relates to fluorine-containing sulfonates useful as an intermediate for producing a photoacid generator useful as a chemical amplification resist material suitable for microfabrication technology, particularly photolithography, in a manufacturing process of semiconductor elements and the like, and a method for producing the same About. Furthermore, this invention relates to the manufacturing method of fluorine-containing sulfonic-acid onium salts which function as a photo-acid generator.
- “Chemically amplified resist materials” are attracting attention as resists suitable for such exposure wavelengths.
- This contains a radiation-sensitive acid generator (hereinafter referred to as “photoacid generator”) that forms an acid upon irradiation with radiation (hereinafter referred to as “exposure”), and the acid generated by exposure is used as a catalyst.
- photoacid generator a radiation-sensitive acid generator
- Exposure an acid upon irradiation with radiation
- exposure the acid generated by exposure is used as a catalyst.
- It is a pattern forming material that forms a pattern by changing the solubility of the exposed portion and the non-exposed portion in the developer by a reaction.
- Patent Document 1 triphenylsulfonium methoxycarbonyldifluoromethanesulfonate
- Patent Document 2 (4-methylphenyl) diphenylsulfonyl t-butoxycarbonyldifluoromethanesulfonate
- Patent Document 3 triphenylsulfonium (adamantan-1-ylmethyl) oxy
- Alkoxycarbonylfluoromethanesulfonic acid onium salts such as carbonyldifluoromethanesulfonate
- triphenylsulfonium 1, 1, 3, 3, 3-penta which is a kind of alkylcarbonyloxyalkanesulfonic acid onium salt, in which the ester bond is reversed from the above-described alkoxycarbonyldifluoromethanesulfonic acid onium salt Fluoro-2- benzoyloxypropane-1-sulfonate has also been developed (Patent Document 4).
- Patent Document 5 an onium salt of 2-alkylcarbonyloxy-1,1-difluoroethanesulfonate, which is considered to have three fewer fluorine atoms than the acid generator of Patent Document 4, that is, less harmful to the environment.
- This substance functions as an acid generator having a strong acidity with a minimum number of fluorine atoms, has excellent compatibility with solvents and resins, and is useful as an acid generator for resists. (Patent Document 5).
- Patent Document 6 An onium salt of tetrafluoroalkanesulfonic acid was found (Patent Document 6).
- reaction formula [1] The reaction pathway as shown in is disclosed. That is, a first step of sulfinating 4-bromo-3,3,4,4-tetrafluorobutan-1-ol using a sulfinating agent to obtain a sulfinate metal salt, the obtained sulfinate metal A second step of oxidizing the salt using an oxidizing agent to obtain a sulfonic acid metal salt; and a third step of reacting the obtained sulfonic acid metal salt with a monovalent onium salt to obtain a sulfonic acid onium salt. And a fourth step of reacting the obtained sulfonic acid onium salt with an alkyl acrylate halide or an alkyl acrylate anhydride to obtain a target polymerizable sulfonic acid onium salt.
- Patent Document 7 The same tetrafluoroalkanesulfonic acid onium salt is also disclosed in other documents (Patent Document 7).
- 1, 4-dibromo- 1, 1, 2, 2-tetrafluorobutane is used as a starting material, and from a selective substitution reaction using a carboxylate such as sodium carboxylate or ammonium carboxylate, Aliphatic or aromatic carboxylic acid 4-bromo- 3, 3, 4, 4-tetrafluorobutyl ester is converted to tetrafluorobutyl ester, and then the ester is dissolved in the presence of a base such as sodium bicarbonate in the same manner as in Patent Document 6.
- a base such as sodium bicarbonate
- the sulfination step in the first step is also an oxidation step in the second step.
- the purity of the obtained target product is low (80% and 78%).
- the yields are calculated as 77% and 88%, respectively, from the weight of the target product obtained without considering the purity, but they are 62% and 69%, respectively, considering the purity, and are not necessarily high.
- most of the impurities are sodium salts that are inappropriate to remain in the final photoacid generator.
- acetonitrile is used as an extraction solvent in the first sulfination step. This is because it is difficult to dissolve or extract the target metal sulfinate sufficiently with other water-insoluble organic solvents.
- acetonitrile has a high solubility for organic substances, but is water-soluble, so that the extract recovery rate is not so high, and water contamination increases. As a result, the yield of the target product is lowered, and water-soluble inorganic impurities are mixed.
- water is used as a reaction solvent and the water is distilled off. In this case, among the generated impurities, non-volatile substances are particularly problematic, and metal salts such as sodium salts cannot be removed.
- an object of the present invention is to provide a method for easily and inexpensively producing fluoroalkanesulfonates useful as a photoacid generator used in a chemically amplified resist material.
- the inventors of the present invention made extensive studies to solve the above problems. As a result, the inventors have found a novel compound useful for the production of the “fluoroalkanesulfonic acid onium salt”. The inventors have found a novel reaction route that is much more advantageous for synthesis on a large scale than conventional methods via these novel compounds.
- the present invention includes [Aspect 1] to [Aspect 4] as shown below.
- R represents a linear or branched alkyl group having 1 to 10 carbon atoms, an alicyclic organic group having 3 to 20 carbon atoms, or an alicyclic organic group having 3 to 20 carbon atoms.
- the organic group composed of an alicyclic organic group and a linear alkylene group, a monocyclic or polycyclic lactone and an aryl group are fluorine, hydroxyl group, hydroxycarbonyl group, It may be substituted with a linear, branched or cyclic alkoxy group having 1 to 6 carbon atoms, and may be substituted with the alkyl group, alicyclic organic group or alicyclic organic group and linear alkylene group.
- Two on the same carbon constituting the organic group A hydrogen atom may be substituted with one oxygen atom to form a keto group, except that R does not have a non-conjugated unsaturated site (double bond or triple bond) in its structure.
- n is an integer of 1 to 8;
- carboxylic acid bromofluoroalkyl ester represented by the following general formula [13]
- R and X have the same meanings as R and X in the general formula [1]).
- ammonium salt has the following general formula [2] (In the general formula [2], R and X have the same meanings as R and X in the general formula [1].
- a + represents an ammonium ion derived from the amine.) It is a novel compound represented by these. Since this ammonium sulfinate is highly lipophilic and low in hydrophilicity, it can be easily extracted with an organic solvent.
- inorganic salts such as fluoride ions and sodium bromide that have been problematic can be washed with water. We have also found that it can be removed. By doing so, it was found that the reactor was not restricted, and side reactions in the next oxidation step could be suppressed.
- the present inventors can perform an efficient purification of fluoroalkanesulfinate by washing the organic layer with an aqueous metal thiosulfate solution or an aqueous metal sulfite solution after the “extraction with an organic solvent”.
- a by-product generated in the later “oxidation step” (a sulfination reaction substrate, carboxylic acid bromofluoroalkyl ester represented by the general formula [1]: disappeared in the sulfination step, but again in the oxidation step. It has been found that the production of the production can be significantly suppressed.
- the present inventors have developed fluoroalkanesulfinic acid salts useful as a photoacid generator production intermediate for resists or as a solid polymer electrolyte production intermediate for fuel cells, and novel and large-scale production thereof.
- a production method and purification method suitable for production have been found.
- this ammonium sulfonate has a high lipophilicity and low hydrophilicity like the ammonium sulfinate, it can be easily extracted with an organic solvent. Therefore, the present inventors have found that a high-purity ammonium sulfonate can be obtained by removing water-soluble impurities including inorganic salts by washing with water.
- the present inventors have produced a novel and large-scale production of ammonium fluoroalkanesulfonate useful as a photoacid generator production intermediate for resists or as a solid polymer electrolyte production intermediate for fuel cells.
- the production method and purification method suitable for the above were found.
- R, X, A + has the general formula are synonymous R, X, and A + in [2] .
- X - represents a monovalent anion .Q + the following general formula ( a) or a sulfonium cation represented by the following general formula (b), or an iodonium cation represented by the following general formula (c).
- R 1 , R 2 and R 3 are each independently a substituted or unsubstituted linear or branched alkyl group having 1 to 10 carbon atoms, an alkenyl group or an oxoalkyl group, or Represents a substituted or unsubstituted aryl group, aralkyl group or aryloxoalkyl group having 6 to 18 carbon atoms, or any two or more of R 1 , R 2 and R 3 are bonded to each other; A ring may be formed together with the sulfur atom.
- R 4 represents a substituted or unsubstituted linear, branched or cyclic alkyl or alkenyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl having 6 to 14 carbon atoms. Indicates a group. m represents an integer of 1 to 5, and n represents 0 (zero) or 1. In the general formula (c), R 4 is a substituted or unsubstituted linear, branched or cyclic alkyl or alkenyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl having 6 to 14 carbon atoms. Indicates a group. q represents an integer of 0 (zero) to 5, and n represents 0 (zero) or 1. )
- the type of functional group R of the compound that can be synthesized by [Aspect 3] is limited. That is, the functional group R of the compound that can be synthesized in [Aspect 3] is “a linear or branched alkyl group having 1 to 10 carbon atoms, an alicyclic organic group having 3 to 20 carbon atoms, or a group having 3 to 20 carbon atoms”.
- Consists of organic groups consisting of aralkylene groups Two hydrogen atoms on the same carbon may be substituted with one oxygen atom to form a keto group, provided that R represents a non-conjugated unsaturated site (double bond or triple bond) in the structure. And a non-conjugated unsaturated site (double bond or triple bond) other than an aromatic ring having a conjugated unsaturated site such as an aryl group or a heteroaryl group in the structure. ) Are excluded. This is due to the first step (sulfinization step).
- R has a non-conjugated unsaturated site (double bond or triple bond) in its structure as a raw material for the first step (sulfination step)
- the non-conjugated unsaturated site undergoes side reaction.
- the inventors have found that it is difficult to wake up and obtain the desired sulfinated product.
- R having a non-conjugated unsaturated site include linear, branched or cyclic alkenyl groups.
- alkenyl groups include vinyl, allyl, 1-methylethenyl, 1-methylallyl, 2-methylallyl, 1-propenyl, isopropenyl, 2-butenyl, and 3-butenyl.
- the fluoroalkanesulfonic acid ammonium salt represented by the general formula [3] obtained in [Aspect 2] is subjected to a saponification reaction (hydrolysis reaction in the presence of a basic substance) (step 3 ′: Saponification step) and the general formula [6] (In the general formula [6], M + represents a counter cation.
- X is independently a hydrogen atom, a fluorine atom, an alkyl group having 1 to 6 carbon atoms, or a fluorine-containing alkyl group having 1 to 6 carbon atoms.
- n represents an integer of 1 to 8.
- the hydroxyfluoroalkanesulfonic acid onium salt represented by the general formula [7] Or general formula [8] (In the general formulas [7] and [8], X ′ represents a hydroxyl group or halogen.
- R ′ is a linear or branched group having 1 to 10 carbon atoms.
- An organic group composed of a cyclic 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 the alkyl group, Some or all of the hydrogen atoms on the alkenyl group, alicyclic organic group, organic group composed of alicyclic organic group and linear alkylene group, monocyclic or polycyclic lactone and aryl group are fluorine, hydroxyl Group, hydroxycarboni
- the alkyl group, the alkenyl group, the alicyclic organic group, or the alicyclic organic group and the straight chain may be substituted with a linear, branched or cyclic alkoxy group having 1 to 6 carbon atoms.
- Two hydrogen atoms on the same carbon constituting the organic group composed of the alkylene group may be substituted with one oxygen atom to form a keto group, and one of the hydrogen atoms on the alkyl group may be 2 -It may be substituted with an acryloyloxy group or a 2-methacryloyloxy group).
- esterification step 2 which is reacted with a carboxylic acid derivative represented by the general formula [10] It was found that an onium salt of fluoroalkanesulfonic acid represented by the following formula (6) was obtained (see reaction formula [6] below).
- the substituent R ′ of the fluoroalkanesulfonic acid onium salt represented by the formula [10] includes “the one having a nonconjugated unsaturated site (double bond or triple bond) in its structure”. The point is important. That is, this [Aspect 4] is a fluoroalkanesulfonic acid onium salt that is useful as a photoacid generator used in a chemically amplified resist material. It is particularly useful for those having
- those having a non-conjugated unsaturated site at the end of the substituent that is, ( ⁇ -alkenylcarbonyloxy) fluoroalkanesulfonic acid onium salt, are disclosed in, for example, International Patent Publication No. 2006/121096.
- a resist resin By being copolymerized with the above monomer, it can be fixed in a resist resin, and can be used as a “resist resin-supported photoacid generator”.
- Such a “resist resin-supported photoacid generator” is a new type of photoacid generator that has attracted attention in recent years because of its high performance such as high resolution. In this sense, an ( ⁇ -alkenylcarbonyloxy) fluoroalkanesulfonic acid onium salt having a non-conjugated unsaturated site at the end of the substituent is extremely useful.
- the present invention includes [Invention 1] to [Invention 10].
- a + represents an ammonium ion
- R represents a linear or branched alkyl group having 1 to 10 carbon atoms
- an alicyclic organic group having 3 to 20 carbon atoms and 3 carbon atoms.
- a part or all of hydrogen atoms on the alkyl group, alicyclic organic group, organic group composed of alicyclic organic group and linear alkylene group, monocyclic or polycyclic lactone and aryl group are fluorine.
- R is a non-conjugated unsaturated site (double bond or X is independently a group selected from the group consisting of a hydrogen atom, a fluorine atom, an alkyl group having 1 to 6 carbon atoms, and a fluorine-containing alkyl group having 1 to 6 carbon atoms.
- N represents an integer of 1 to 8.
- G 1 , G 2 and G 3 are each independently a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxyalkyl group having 1 to 6 carbon atoms, or an alkyl group having 3 to 12 carbon atoms.
- a teroaromatic group or a ring which may contain a hetero atom in at least two of G 1 , G 2 and G 3 .
- Some or all of hydrogen atoms on alkyl groups, alicyclic organic groups, organic groups composed of alicyclic organic groups and linear alkylene groups, monocyclic or polycyclic lactones and aryl groups are fluorine, hydroxyl Group, a hydroxycarbonyl group, a linear, branched or cyclic alkoxy group having 1 to 6 carbon atoms may be substituted with the alkyl group, alicyclic organic group or alicyclic organic group.
- Consists of organic groups consisting of chain alkylene groups Two hydrogen atoms on the same carbon may be substituted with one oxygen atom to form a keto group, provided that R has a non-conjugated unsaturated site (double bond or triple bond) in the structure.
- a + represents an ammonium ion
- X is independently selected from the group consisting of a hydrogen atom, a fluorine atom, an alkyl group having 1 to 6 carbon atoms, and a fluorine-containing alkyl group having 1 to 6 carbon atoms.
- n represents an integer of 1 to 8.
- [Invention 4] General formula [3] by including the following two steps The manufacturing method of fluoroalkanesulfonic-acid ammonium salt represented by these.
- R represents a linear or branched alkyl group having 1 to 10 carbon atoms, an alicyclic organic group having 3 to 20 carbon atoms, or 3 to 20 carbon atoms.
- Some or all of hydrogen atoms on alkyl groups, alicyclic organic groups, organic groups composed of alicyclic organic groups and linear alkylene groups, monocyclic or polycyclic lactones and aryl groups are fluorine, hydroxyl Group, a hydroxycarbonyl group, a linear, branched or cyclic alkoxy group having 1 to 6 carbon atoms may be substituted with the alkyl group, alicyclic organic group or alicyclic organic group.
- a + represents an ammonium ion
- X is independently selected from the group consisting of a hydrogen atom, a fluorine atom, an alkyl group having 1 to 6 carbon atoms, and a fluorine-containing alkyl group having 1 to 6 carbon atoms.
- n represents an integer of 1 to 8.
- the monovalent onium salt represented by the general formula [4] is obtained by converting the ammonium salt of the fluoroalkanesulfonic acid represented by the general formula [3] obtained by the method of the invention 4 (3rd step: onium salt exchange step 1), wherein general formula [5] The manufacturing method of fluoroalkanesulfonic acid onium salt represented by these.
- X ⁇ represents a monovalent anion.
- R has the same meaning as R in the general formulas [1] to [3].
- Q + represents a sulfonium cation represented by the following general formula (a) or the following general formula (b), or an iodonium cation represented by the following general formula (c).
- R 1 , R 2 and R 3 are each independently a substituted or unsubstituted linear or branched alkyl group having 1 to 10 carbon atoms, an alkenyl group or an oxoalkyl group, or Represents a substituted or unsubstituted aryl group, aralkyl group or aryloxoalkyl group having 6 to 18 carbon atoms, or any two or more of R 1 , R 2 and R 3 are bonded to each other; A ring may be formed together with the sulfur atom.
- R 4 represents a substituted or unsubstituted linear, branched or cyclic alkyl or alkenyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl having 6 to 14 carbon atoms. Indicates a group. m represents an integer of 1 to 5, and n represents 0 (zero) or 1. In the general formula (c), R 4 is a substituted or unsubstituted linear, branched or cyclic alkyl or alkenyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl having 6 to 14 carbon atoms. Indicates a group. q represents an integer of 0 (zero) to 5, and n represents 0 (zero) or 1.
- M + represents a counter cation.
- X ′ represents a hydroxyl group or a halogen.
- R ′ is a straight-chain or branched alkyl group having 1 to 10 carbon atoms, or a straight-chain or branched alkenyl group having a polymerizable double bond at least at the terminal portion.
- Two hydrogen atoms on the same carbon constituting an organic group composed of a formula organic group or an alicyclic organic group and a linear alkylene group may be substituted with one oxygen
- Q + represents the general formula [4] and the general formula It is synonymous with Q + in formula [5]
- X is independently selected from the group consisting of a hydrogen atom, a fluorine atom, an alkyl group having 1 to 6 carbon atoms, and a fluorine-containing alkyl group having 1 to 6 carbon atoms.
- n represents an integer of 1 to 8.
- the carboxylic acid bromofluoroalkyl ester is represented by the following general formula [A]:
- each X is independently a group selected from the group consisting of a hydrogen atom, a fluorine atom, an alkyl group having 1 to 6 carbon atoms, and a fluorine-containing alkyl group having 1 to 6 carbon atoms.
- N represents an integer of 1 to 8.
- invention 8 In any one of invention 3 thru
- a carboxylic acid bromofluoroalkyl ester is used as a raw material to produce a photoacid generator that is useful as a chemically amplified resist material suitable for microfabrication technology, particularly photolithography, in the manufacturing process of semiconductor elements and the like. Therefore, fluoroalkanesulfonates useful as an intermediate for producing a solid electrolyte used in a fuel cell or the like can be produced in a simple, good yield and on an industrial scale. Furthermore, according to the present invention, there is an effect that fluoroalkanesulfonic acid onium salts that function as a photoacid generator can be produced easily and in a high yield on an industrial scale.
- a + represents an ammonium ion
- R represents a linear or branched alkyl group having 1 to 10 carbon atoms, an alicyclic organic group having 3 to 20 carbon atoms, or 3 to 3 carbon atoms. It represents an organic group composed of 20 alicyclic organic groups 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.
- alkyl group alicyclic organic group, organic group composed of alicyclic organic group and linear alkylene group, monocyclic or polycyclic lactone and part of hydrogen atoms on aryl group or All of them may be substituted with fluorine, hydroxyl group, hydroxycarbonyl group, linear, branched or cyclic alkoxy group having 1 to 6 carbon atoms, and the alkyl group, alicyclic organic group or alicyclic ring.
- Two hydrogen atoms on the same carbon constituting an organic group composed of a formula organic group and a linear alkylene group may be substituted with one oxygen atom to form a keto group, provided that R is And X having an unconjugated unsaturated site (double bond or triple bond), each independently represents a hydrogen atom, a fluorine atom, an alkyl group having 1 to 6 carbon atoms, or an alkyl group having 1 to 6 carbon atoms. Consists of fluorine alkyl group .n representing more group selected is an integer of 1-8.)
- ammonium ions represented by A + include ammonium ion (NH 4 + ), methyl ammonium ion (MeNH 3 + ), dimethyl ammonium ion (Me 2 NH 2 + ), trimethyl ammonium ion (Me 3 NH + ), Ethylammonium ion (EtNH 3 + ), diethylammonium ion (Et 2 NH 2 + ), triethylammonium ion (Et 3 NH + ), n-propylammonium ion (n-PrNH 3 + ), di-n-propylammonium ion (N-Pr 2 NH 2 + ), tri-n-propylammonium ion (n-Pr 3 NH + ), i-propylammonium ion (i-PrNH 3 + ), di-i-propylammonium ion (i-Pr 2 NH 2 +), tri -i-prop
- a + is preferably an ammonium ion represented by the following general formula [I].
- G 1 , G 2 and G 3 are each independently a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxyalkyl group having 1 to 6 carbon atoms, or a cyclohexane having 3 to 12 carbon atoms.
- trimethylammonium ion (Me 3 NH + ), triethylammonium ion (Et 3 NH + ), and diisopropylethylammonium (n-Pr 2 EtNH + ) are particularly preferable.
- Examples of the linear or branched alkyl group having 1 to 10 carbon atoms include a methyl group, an ethyl group, an n-propyl group, an i-propyl group, an n-butyl group, a t-butyl group, and an n-pentyl group. N-hexyl group, n-heptyl group, n-octyl group, n-nonyl group, n-decyl group and the like.
- Examples of the alicyclic organic group having 3 to 20 carbon atoms include cyclopentyl group, cyclohexyl group, adamantyl group, norbornyl group, camphoroyl group, cyclopentylmethyl group, cyclopentylethyl group, cyclohexylmethyl group, cyclohexylethyl group, and adamantylmethyl.
- An organic group composed of an alicyclic organic group having 3 to 20 carbon atoms and a linear alkylene group is “an organic group in which one valence of an alicyclic organic group and a linear alkylene group is bonded”. Specifically, for example, a cyclopropylmethyl group, a cyclobutylmethyl group, a cyclopentylmethyl group, a cyclohexylmethyl group, a bornylmethyl group, a norbornylmethyl group, an adamantylmethyl group and the like can be mentioned.
- the number of carbon atoms of the linear alkylene group is not particularly limited, but is 1 to 6, for example.
- Monocyclic or polycyclic lactones having 3 to 30 carbon atoms include ⁇ -butyrolaclone, ⁇ -valerolactone, angelica lactone, ⁇ -hexalactone, ⁇ -heptalactone, ⁇ -octalactone, ⁇ -nonalactone, 3-methyl -4-octanolide (whiskey lactone), ⁇ -decalactone, ⁇ -undecalactone, ⁇ -dodecalactone, ⁇ -jasmolactone (7-decenolactone), ⁇ -hexalactone, 4, 6, 6 (4, 4, 6) -Trimethyltetrahydropyran-2-one, ⁇ -octalactone, ⁇ -nonalactone, ⁇ -decalactone, ⁇ -2-decenolactone, ⁇ -undecalactone, ⁇ -dodecalactone, ⁇ -tridecalactone, ⁇ -tetra Decalactone, lactoskatone,
- aryl group having 6 to 20 carbon atoms examples include phenyl group, o-tolyl group, m-tolyl group, p-tolyl group, p-hydroxyphenyl group, 1-naphthyl group, 1-anthracenyl group, benzyl group and the like. Can be mentioned.
- two hydrogen atoms on the same carbon constituting the alkyl group, the alicyclic organic group or the organic group composed of the alicyclic organic group and a linear alkylene group are substituted with one oxygen atom, and a keto group It may be.
- R those having a nonconjugated unsaturated site (double bond or triple bond) in the structure are excluded.
- n 1 to 8
- the present invention provides the following reaction formula [7] As shown in the above, the carboxylic acid bromofluoroalkyl ester represented by the general formula [1] is reacted in the presence of a sulfinating agent and an amine to produce a fluoroalkanesulfinic acid ammonium salt represented by the general formula [2] (present invention).
- the target product of embodiment 1 of the present invention (first step: sulfination step), the obtained fluoroalkanesulfinic acid ammonium salt represented by the general formula [2] is reacted with an oxidizing agent, and the general formula [3] Step (2nd step: oxidation step) for obtaining a fluoroalkanesulfonic acid ammonium salt represented by general formula [3], and a fluoroalkanesulfonic acid ammonium salt represented by the general formula [3] Is exchanged using a monovalent onium salt represented by the general formula [4], and the fluoroalkanesulfonic acid onium salt represented by the general formula [5] Obtaining the desired product) of Aspect 3 (Third Step: includes three steps onium salt exchange step 1). By passing through this step, a fluoroalkanesulfonic acid onium salt having no non-conjugated unsaturated site (double bond or triple bond) as R in the general formula [5] can be obtained.
- the fluoroalkanesulfonic acid ammonium salt represented by the general formula [3] obtained in the second step is saponified to give the general formula [6
- a step of obtaining a hydroxyfluoroalkanesulfonate represented by the general formula [6] a step of obtaining a hydroxyfluoroalkanesulfonate represented by the general formula [6]
- the hydroxyfluoroalkanesulfonic acid onium salt represented by the general formula [9] is reacted with a carboxylic acid derivative represented by the general formula [7] or the general formula [8].
- the step of esterification can be obtained by going through the three steps of (Fifth Step] esterification step 2).
- the fluoroalkanesulfonic acid onium salt having a non-conjugated unsaturated site (double bond or triple bond) as R ′ in the general formula [10] is also a bromofluoroalkyl carboxylate represented by the general formula [1]. It can be obtained from the ester via five steps.
- the carboxylic acid bromofluoroalkyl ester represented by the general formula [1] of the starting material is easily produced through a step of esterifying the corresponding bromofluoroalcohol ([previous step]: esterification step 1). be able to.
- the first step is a step (sulfination step) in which a carboxylic acid bromofluoroalkyl ester represented by the general formula [1] is reacted with a sulfinating agent in the presence of an organic base to obtain a fluoroalkanesulfinic acid ammonium salt. .
- the sulfinating agent used in this step is represented by the general formula [16].
- S 1 represents S 2 O 4 , HOCH 2 SO 2 , SO 4 or HSO 4
- m and n represent an integer
- p represents 0 (zero) or an integer.
- M 1 represents Li, Na, K or NH 4 ), and specifically, lithium dithionite, sodium dithionite, potassium dithionite, ammonium dithionite, hydroxymethane Lithium sulfinate, sodium hydroxymethanesulfinate, potassium hydroxymethanesulfinate, ammonium hydroxymethanesulfinate, lithium sulfite, sodium sulfite, potassium sulfite, ammonium sulfite, lithium bisulfite, sodium bisulfite, potassium bisulfite, ammonium bisulfite, etc.
- sodium dithionite and potassium dithionite are preferred, and sodium dithionite is particularly preferred.
- the molar ratio of the sulfinating agent to the carboxylic acid bromofluoroalkyl ester [1] is usually 0.5 to 10, preferably 0.9 to 5.0, particularly preferably 1.0 to 2.0. .
- This reaction can be carried out in air, but the sulfinating agent may be decomposed by moisture in the air. Therefore, it is preferable to carry out in a nitrogen or argon atmosphere.
- the sulfination reaction using a sulfinating agent may proceed without the addition of a base, but the reaction can be promoted by the addition, so it is usually added.
- a base inorganic bases such as sodium carbonate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate and the like are generally used.
- an amine is a major feature. .
- the organic base used (coexisted) in this step is a free amine obtained by removing protons (H + ) from various ammonium ions exemplified as A + in the above formula [2].
- ammonia methylamine, dimethylamine, trimethylamine, ethylamine, diethylamine, triethylamine, n-propylamine, di-n-propylamine, tri-n-propylamine, i-propylamine, di-i-propylamine, tri -I-propylamine, n-butylamine, di-n-butylamine, tri-n-butylamine, sec-butylamine, di-sec-butylamine, tri-sec-butylamine, tert-butylamine, di-tert-butylamine, tri- Examples thereof include tert-butylamine, diisopropylethylamine, phenylamine, diphenylamine, triphenyl
- organic base having a structure can be exemplified as a preferred organic base.
- trimethylamine, triethylamine, and diisopropylethylamine are not only easily available, but also significantly improve the reactivity of the sulfination reaction, and the lipid solubility of the resulting fluoroalkanesulfinic acid ammonium salt is sufficiently improved. Therefore, it is preferable.
- the molar ratio of the organic base to the carboxylic acid bromofluoroalkyl ester [1] is usually 1.0 to 10.0, preferably 1.1 to 2.0.
- a fluoroalkanesulfinic acid metal salt is by-produced by a cation derived from a sulfinating agent (metal cation such as sodium ion, potassium ion or lithium ion).
- metal cation such as sodium ion, potassium ion or lithium ion.
- This reaction is preferably performed in a mixed solvent of an organic solvent and water.
- the organic solvent is preferably a solvent having good compatibility with water, such as lower alcohols, tetrahydrofuran, N, N-dimethylformamide, N, N-dimethylacetamide, acetonitrile, dimethylsulfoxide, and more preferably Methanol, N, N-dimethylacetamide, acetonitrile, dimethyl sulfoxide and the like are preferable, and acetonitrile is particularly preferable.
- the proportion of the organic solvent used is usually 5 parts by weight or more, preferably 10 parts by weight or more, and more preferably 20 to 90 parts by weight with respect to 100 parts by weight of the total of the organic solvent and water.
- the reaction temperature is usually 0 to 200 ° C., preferably 30 to 100 ° C.
- the reaction time is usually 0.1 to 12 hours, preferably 0.5 to 6 hours.
- the end point of the reaction is preferably the time when a certain carboxylic acid bromofluoroalkyl ester [1] is consumed.
- a pressure vessel such as an autoclave is used.
- an inorganic base such as sodium carbonate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate or the like is used.
- the reaction time is several times to several tens of times. Specifically, it takes about 15 to 120 hours.
- the reaction is not completed.
- the reaction is completed unless an operation such as adding water, a sulfinating agent and a base again to restart the reaction is performed. And the desired sulfinated product cannot be obtained in high yield.
- the reaction solution water can be separated into a uniform liquid composed of water and an organic solvent highly compatible with water, or separated into two layers, but the organic layer in which water is dissolved and the water in which the organic solvent is dissolved) It is possible to extract a target sulfinic acid ammonium salt from an organic solvent having a low water solubility or not having a water solubility.
- a solvent examples include halogen solvents such as chloroform and dichloromethane, ether solvents such as diethyl ether, diisopropyl ether and tert-butyl methyl ether, and acetate solvents such as ethyl acetate and butyl acetate.
- halogen solvents such as chloroform and dichloromethane
- ether solvents such as diethyl ether, diisopropyl ether and tert-butyl methyl ether
- acetate solvents such as ethyl acetate and butyl acetate.
- bromine is eliminated from the carboxylic acid bromofluoroalkyl ester of the raw material, and therefore there is a bromine trace equivalent to the raw material in the reaction solution.
- the bromine mark is also oxidized, and a chemical species having bromination ability (probably bromine) is generated, brominating the fluoroalkanesulfinic acid ammonium salt, The raw material carboxylic acid bromofluoroalkyl ester is by-produced.
- the molar ratio of sodium thiosulfate or sodium sulfite used to carboxylic acid bromofluoroalkyl ester [1] is usually 0.1 to 10.0, preferably 1.0 to 5.0.
- the concentration of the sodium thiosulfate aqueous solution or sodium sulfite aqueous solution used is usually from 3% by weight to the saturated state, but preferably 5 to 25% by weight.
- the fluoroalkanesulfinic acid metal salt obtained by using an inorganic base has lower fat solubility and higher water solubility than ammonium salt. Therefore, extraction with an organic solvent becomes difficult, and even if extraction is possible, it is difficult to obtain the target metal sulfinate with a high yield because of its water solubility, so that it is often distributed to the aqueous layer. Therefore, in order to obtain a sulfinic acid metal salt with good yield, it is necessary to concentrate all of the reaction solution. In general, concentration of water is more difficult than concentration of organic solvent.
- the organic layer is washed with water and an aqueous solution of sodium thiosulfate (or an aqueous solution of sodium sulfite), and the solvent is distilled off from the organic layer to obtain the target ammonium sulfinate salt.
- the solvent is distilled off from the organic layer to obtain the target ammonium sulfinate salt.
- it may be purified by recrystallization or the like.
- oxidizing agent used in this step in addition to hydrogen peroxide, metachloroperbenzoic acid, t-butyl hydroperoxide, potassium peroxysulfate, potassium permanganate, sodium perborate, sodium metaiodate, chromic acid, Examples include sodium dichromate, halogen, iodobenzene dichloride, iodobenzene diacetate, osmium oxide (VIII), ruthenium oxide (VIII), sodium hypochlorite, sodium chlorite, oxygen gas, ozone gas, etc. Preferred are hydrogen peroxide, metachloroperbenzoic acid, t-butyl hydroperoxide, and the like.
- the molar ratio of the oxidizing agent to the ammonium fluoroalkanesulfinic acid salt is usually 0.9 to 10.0, preferably 1.0 to 2.0.
- an oxidizing agent is added to the molar amount of the carboxylic acid bromofluoroalkyl ester represented by the general formula [1] before sulfination. Add it.
- a transition metal catalyst can be used in combination with the oxidizing agent.
- the transition metal catalyst include disodium tungstate, iron (III) chloride, ruthenium (III) chloride, selenium oxide (IV), and the like, preferably disodium tungstate.
- the molar ratio of the transition metal catalyst to the ammonium fluoroalkanesulfinic acid salt is usually 0.0001 to 1.0, preferably 0.001 to 0.5, and more preferably 0.001 to 0.1.
- a buffer may be used for the purpose of adjusting the pH of the reaction solution.
- the buffer include disodium hydrogen phosphate, sodium dihydrogen phosphate, dipotassium hydrogen phosphate, and potassium dihydrogen phosphate.
- the molar ratio of the buffer to the fluoroalkanesulfinic acid ammonium salt is usually 0.01 to 2.0, preferably 0.03 to 1.0, more preferably 0.05 to 0.5.
- reaction solvent is preferably water or an organic solvent such as lower alcohols, tetrahydrofuran, N, N-dimethylformamide, N, N-dimethylacetamide, acetonitrile, dimethyl sulfoxide, acetic acid, trifluoroacetic acid, and more preferably.
- an organic solvent and water can be used in combination, and the use ratio of the organic solvent in that case is usually 5 parts by weight or more, preferably 100 parts by weight in total of the organic solvent and water. Is 10 parts by weight or more, more preferably 20 to 90 parts by weight.
- the amount of the reaction solvent used per 1 part by weight of ammonium fluoroalkanesulfinic acid salt is usually 1 to 100 parts by weight, preferably 2 to 100 parts by weight, more preferably 5 to 50 parts by weight.
- the reaction temperature is usually 0 to 100 ° C., preferably 5 to 60 ° C., more preferably 5 to 40 ° C., and the reaction time is usually 0.1 to 72 hours, preferably 0.5 to 24 hours. Yes, and more preferably 0.5 to 12 hours, but using an analytical instrument such as thin layer chromatography (TLC) or nuclear magnetic resonance apparatus (NMR), the raw material ammonium fluoroalkanesulfinate is consumed.
- TLC thin layer chromatography
- NMR nuclear magnetic resonance apparatus
- the end point of the reaction is the end point of the reaction.
- the post-reaction process will be described. Since the amine is used as the base in the first step, the lipid solubility of the resulting ammonium fluoroalkanesulfinate is improved. As a result, it becomes possible to extract the target ammonium sulfonate salt from a reaction solution (generally water or methanol as a main component) using an organic solvent having low or no water solubility. .
- a solvent include halogen solvents such as chloroform and dichloromethane, ether solvents such as diethyl ether, diisopropyl ether and tert-butyl methyl ether, and acetate solvents such as ethyl acetate and butyl acetate.
- the amount of water used is usually 1 to 100 parts by weight, preferably 2 to 100 parts by weight, and more preferably 5 to 50 parts by weight with respect to 1 part by weight of ammonium fluoroalkanesulfinic acid.
- the obtained fluoroalkanesulfonic acid ammonium salt can be purified by recrystallization or the like in some cases.
- the onium cation Q + contained in the general formula [4] represents a sulfonium cation represented by the following general formula (a) or the following general formula (b), or an iodonium cation represented by the following general formula (c).
- R 1 , R 2 and R 3 are each independently a substituted or unsubstituted linear or branched alkyl group having 1 to 10 carbon atoms, an alkenyl group or an oxoalkyl group, or Represents a substituted or unsubstituted aryl group, aralkyl group or aryloxoalkyl group having 6 to 18 carbon atoms, or any two or more of R 1 , R 2 and R 3 are bonded to each other; A ring may be formed together with the sulfur atom.
- R 4 represents a substituted or unsubstituted linear, branched or cyclic alkyl or alkenyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl having 6 to 14 carbon atoms. Indicates a group.
- m represents an integer of 1 to 5, and n represents 0 (zero) or 1.
- R 4 is a substituted or unsubstituted linear, branched or cyclic alkyl or alkenyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl having 6 to 14 carbon atoms. Indicates a group.
- q represents an integer of 0 (zero) to 5, and n represents 0 (zero) or 1.
- R 1 , R 2 and R 3 in the sulfonium cation general formula (a) represented by the general formula (a) include the following.
- alkyl group methyl group, ethyl group, n-propyl group, isopropyl group, cyclopropyl group, n-butyl group, sec-butyl group, isobutyl group, tert-butyl group, n-pentyl group, cyclopentyl group, n- Hexyl group, n-heptyl group, 2-ethylhexyl group, cyclohexyl group, cycloheptyl group, 4-methylcyclohexyl group, cyclohexylmethyl group, n-octyl group, n-decyl group, 1-adamantyl group, 2-adamantyl group, Bicyclo [2.2.1] hepten-2-yl group, 1-adamantanemethyl
- alkenyl group examples include a vinyl group, an allyl group, a propenyl group, a butenyl group, a hexenyl group, and a cyclohexenyl group.
- alkenyl group examples include a vinyl group, an allyl group, a propenyl group, a butenyl group, a hexenyl group, and a cyclohexenyl group.
- oxoalkyl group examples include 2-oxocyclopentyl group, 2-oxocyclohexyl group, 2-oxopropyl group, 2-oxoethyl group, 2-cyclopentyl-2-oxoethyl group, 2-cyclohexyl-2-oxoethyl group, 2- ( And 4-methylcyclohexyl) -2-oxoethyl group.
- Aryl groups include phenyl, naphthyl, thienyl, etc., p-methoxyphenyl, m-methoxyphenyl, o-methoxyphenyl, p-ethoxyphenyl, p-tert-butoxyphenyl, m-tert.
- An alkoxyphenyl group such as a butoxyphenyl group, an alkylphenyl group such as a 2-methylphenyl group, a 3-methylphenyl group, a 4-methylphenyl group and an ethylphenyl group, an alkylnaphthyl group such as a methylnaphthyl group and an ethylnaphthyl group, Examples thereof include a dialkylnaphthyl group such as a diethylnaphthyl group, a dialkoxynaphthyl group such as a dimethoxynaphthyl group and a diethoxynaphthyl group.
- Examples of the aralkyl group include benzyl group, 1-phenylethyl group, 2-phenylethyl group and the like.
- Examples of the aryloxoalkyl group 2-aryl-2-oxoethyl group such as 2-phenyl-2-oxoethyl group, 2- (1-naphthyl) -2-oxoethyl group, 2- (2-naphthyl) -2-oxoethyl group, etc. Groups and the like.
- R 1 , R 2 and R 3 are bonded to each other to form a cyclic structure via a sulfur atom, 1,4-butylene, 3-oxa-1, 5-pentylene and the like can be mentioned.
- substituents include aryl groups having a polymerizable substituent such as acryloyloxy group and methacryloyloxy group.
- 4- (acryloyloxy) phenyl group, 4- (methacryloyloxy) phenyl group, 4 -Vinyloxyphenyl group, 4-vinylphenyl group and the like can be mentioned.
- the sulfonium cation represented by the general formula (a) is represented by triphenylsulfonium, (4-tert-butylphenyl) diphenylsulfonium, bis (4-tert-butylphenyl) phenylsulfonium, tris (4-tert -Butylphenyl) sulfonium, (3-tert-butylphenyl) diphenylsulfonium, bis (3-tert-butylphenyl) phenylsulfonium, tris (3-tert-butylphenyl) sulfonium, (3,4-ditert-butylphenyl) ) Diphenylsulfonium, bis (3,4-ditert-butylphenyl) phenylsulfonium, tris (3,4-ditert-butylphenyl) sulfonium, (4-tert-butoxyphenyl)
- triphenylsulfonium (4-tert-butylphenyl) diphenylsulfonium, (4-tert-butoxyphenyl) diphenylsulfonium, tris (4-tert-butylphenyl) sulfonium, (4-tert-butoxycarbonylmethyloxyphenyl) ) Diphenylsulfonium and the like.
- the substituent position of the R 4 — (O) n — group in the sulfonium cation general formula (b) represented by the general formula (b) is not particularly limited, but the 4-position or 3-position of the phenyl group is preferred. More preferably, it is the 4th position.
- n is 0 (zero) or 1.
- sulfonium cation examples include (4-methylphenyl) diphenylsulfonium, (4-ethylphenyl) diphenylsulfonium, (4-cyclohexylphenyl) diphenylsulfonium, (4-n-hexylphenyl) diphenylsulfonium, (4-n -Octyl) phenyldiphenylsulfonium, (4-methoxyphenyl) diphenylsulfonium, (4-ethoxyphenyl) diphenylsulfonium, (4-tert-butoxyphenyl) diphenylsulfonium, (4-cyclohexyloxyphenyl) diphenylsulfonium, (4-tri Fluoromethylphenyl) diphenylsulfonium, (4-trifluoromethyloxyphenyl) diphenylsulfonium, (4-tert-butoxycarbonyl
- the position of the substituent of the R 4 — (O) n — group in the iodonium cation general formula (c) represented by the general formula (c) is not particularly limited, but the 4-position or 3-position of the phenyl group is preferred. More preferably, it is the 4th position.
- n is 0 (zero) or 1.
- Specific examples of R 4 can be mentioned again the same as R 4 in formula (b).
- Specific iodonium cations include diphenyliodonium, bis (4-methylphenyl) iodonium, bis (4-ethylphenyl) iodonium, bis (4-tert-butylphenyl) iodonium, bis (4- (1,1-dimethyl).
- bis (4-tert-butylphenyl) iodonium is preferably used.
- X ⁇ in the general formula [7] for example, F ⁇ , Cl ⁇ , Br ⁇ , I ⁇ , ClO 4 ⁇ , HSO 4 ⁇ , H 2 PO 4 ⁇ , BF 4 ⁇ , PF 6 ⁇ , SbF 6 ⁇ , aliphatic sulfonate anion, aromatic sulfonate anion, trifluoromethanesulfonate anion, fluorosulfonate anion, aliphatic carboxylate anion, aromatic carboxylate anion, fluorocarboxylate anion, trifluoro Examples thereof include acetate anions, preferably Cl ⁇ , Br ⁇ , HSO 4 ⁇ , BF 4 ⁇ , aliphatic sulfonate ions, etc., more preferably Cl ⁇ , Br ⁇ , HSO 4 ⁇ . .
- the molar ratio of the monovalent onium salt represented by the general formula [4] to the fluoroalkanesulfonic acid ammonium salt [3] is usually 0.5 to 10.0, preferably 0.8 to 2.0. More preferably, it is 0.9 to 1.2.
- reaction solvent is preferably water or an organic solvent such as lower alcohols, tetrahydrofuran, N, N-dimethylformamide, N, N-dimethylacetamide, acetonitrile, dimethyl sulfoxide, and more preferably water, methanol, N, N-dimethylacetamide, acetonitrile, dimethyl sulfoxide and the like, particularly preferably water.
- water and an organic solvent can be used in combination.
- the use ratio of the organic solvent in this case is usually 5 parts by weight or more, preferably 100 parts by weight of water and the organic solvent in total. Is 10 parts by weight or more, more preferably 20 to 90 parts by weight.
- the amount of the reaction solvent used is usually 1 to 100, preferably 2 to 100 parts by weight, and more preferably 5 to 50 parts by weight with respect to 1 part by weight of the counter-ion exchange precursor.
- the reaction temperature is usually from 0 to 80 ° C., preferably from 5 to 30 ° C.
- the reaction time is usually from 10 minutes to 16 hours, preferably from 30 minutes to 6 hours, but thin layer chromatography (TLC)
- TLC thin layer chromatography
- an analytical instrument such as a nuclear magnetic resonance apparatus (NMR) or the like, and to set the end point of the reaction at the point when the fluoroalkanesulfonic acid ammonium salt [3] as a raw material is consumed.
- the fluoroalkanesulfonic acid onium salt represented by the general formula [5] thus obtained can be washed with an organic solvent or extracted and purified as necessary.
- the organic solvent is preferably an organic solvent that is not miscible with water, such as esters such as ethyl acetate and n-butyl acetate; ethers such as diethyl ether; alkyl halides such as methylene chloride and chloroform.
- an fluoronium alkanesulfonic acid onium salt having no nonconjugated unsaturated site (double bond or triple bond) in the structure can be obtained as a substituent of the acyl group.
- This compound can be used as a photoacid generator used in a chemically amplified resist material.
- substituent of the acyl group those having a non-conjugated unsaturated site (double bond or triple bond) in the structure are difficult to produce by the above steps, so the following steps are further performed. There is a need.
- any of the saponification methods known so far can be adopted, and there is no particular limitation. It can be illustrated.
- the saponification reaction is carried out in the presence of a base catalyst, and the base includes one or more alkali metal hydroxides, bicarbonates, carbonates, ammonia, and amines.
- the alkali metal compound include sodium hydroxide, potassium hydroxide, lithium hydroxide, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium carbonate, potassium carbonate and the like.
- the counter cation M + Since the raw material is an ammonium salt, if the same amine as that used in the first sulfination step is used in this step, the counter cation M + remains an ammonium ion (A + ). . However, when a base different from that used in the first sulfination step is used in this step, the counter cation M + varies as follows depending on the strength of the base used.
- the raw material fluoroalkanesulfonic acid ammonium salt is a salt consisting of fluoroalkanesulfonic acid, which is a super strong acid, and amine, which is a weak base. Therefore, when a base stronger than the amine used in the sulfination step of the first step is used in an amount of 1 equivalent or more with respect to ammonium fluoroalkanesulfonate, M + is a cation derived from the base used in this step. Become. When 1 equivalent or less is used, M + is a mixture of an ammonium cation derived from the raw material and a cation derived from the base used in this step.
- alkali metal compounds such as sodium hydroxide, potassium hydroxide, lithium hydroxide, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium carbonate and potassium carbonate are preferred, and are alkali metal hydroxides.
- Sodium hydroxide and potassium hydroxide are particularly preferred. Since these alkali metal hydroxides are stronger bases than amines, the generated cations (M + ) are derived from these alkali metal hydroxides.
- the molar ratio of the base to the fluoroalkanesulfonic acid ammonium salt [3] is usually 0.01 to 10.0, preferably 1.0 to 5.0, and more preferably 1.0 to 3.0. .
- the saponification reaction itself proceeds even at a molar ratio of 1.0 or less, but when a base different from the base derived from the starting ammonium salt is used in the saponification reaction, as described above, the resulting hydroxy form becomes a mixture of different salts. turn into. Therefore, it is preferable to use a base having a molar ratio of 1.0 or more.
- the molar ratio of water to fluoroalkanesulfonic acid ammonium salt [3] usually performed in the presence of water is usually 1 or more, and there is no upper limit. However, if too much water is used, the efficiency is high. Since it worsens, 100 or less is preferable, More preferably, it is 50 or less.
- water and an organic solvent can be used in combination.
- the organic solvent used in combination is not particularly limited, but an organic solvent capable of extracting the hydroxyfluoroalkanesulfonate represented by the general formula [6] from the aqueous layer, for example, esters such as ethyl acetate and n-butyl acetate; diethyl Ethers such as ethers; organic solvents that are not miscible with water, such as alkyl halides such as methylene chloride and chloroform, are preferred.
- the organic solvent is used in an amount of usually 5 parts by weight or more, preferably 10 parts by weight or more, and more preferably 20 to 90 parts by weight with respect to 100 parts by weight of water and the organic solvent.
- the reaction temperature is usually from 0 to 100 ° C., preferably from 5 to 80 ° C.
- the reaction time is usually from 10 minutes to 16 hours, preferably from 30 minutes to 6 hours, but thin layer chromatography (TLC)
- TLC thin layer chromatography
- an analytical instrument such as a nuclear magnetic resonance apparatus (NMR) or the like, and to set the end point of the reaction at the point when the fluoroalkanesulfonic acid ammonium salt [3] as a raw material is consumed.
- the hydroxyfluoroalkanesulfonate represented by the general formula [6] thus obtained can be extracted with an organic solvent or purified by recrystallization as necessary.
- R ′ is a linear or branched alkyl group having 1 to 10 carbon atoms, and is polymerized at least at the terminal portion of the linear or branched structure having 1 to 10 carbon atoms.
- An alkenyl group having an ionic double bond, an alicyclic organic group having 3 to 20 carbon atoms, an organic group composed of an alicyclic organic group having 3 to 20 carbon atoms and a linear alkylene group Represents a monocyclic or polycyclic lactone or an aryl group having 6 to 20 carbon atoms (wherein the alkyl group, alkenyl group, alicyclic organic group, alicyclic organic group and linear alkylene group).
- Some or all of the hydrogen atoms on the organic group, monocyclic or polycyclic lactone and aryl group are fluorine, hydroxyl group, hydroxycarbonyl group, linear, branched or cyclic alkoxy having 1 to 6 carbon atoms. Substituted with a group Also, two hydrogen atoms on the same carbon constituting the alkyl group, alkenyl group, alicyclic organic group, or organic group composed of an alicyclic organic group and a linear alkylene group are one oxygen atom.
- a hydrogen atom on the alkyl group may be substituted with a 2-acryloyloxy group or a 2-methacryloyloxy group
- X is independently And represents a group selected from the group consisting of a hydrogen atom, a fluorine atom, an alkyl group having 1 to 6 carbon atoms, and a fluorine-containing alkyl group having 1 to 6 carbon atoms, n represents an integer of 1 to 8.
- R ′ is as follows.
- Examples of the linear or branched alkyl group having 1 to 10 carbon atoms include a methyl group, an ethyl group, an n-propyl group, an i-propyl group, an n-butyl group, a t-butyl group, and an n-pentyl group. N-hexyl group, n-heptyl group, n-octyl group, n-nonyl group, n-decyl group and the like.
- Examples of the straight-chain or branched alkenyl group having 1 to 10 carbon atoms and having a polymerizable double bond at the terminal portion include, for example, vinyl group, 1-methylethenyl group, allyl group, 3-butenyl group, 1-methylallyl group. Group, 2-methylallyl group, 4-pentenyl group, 5-hexenyl group and the like.
- Examples of the alicyclic organic group having 3 to 20 carbon atoms include cyclopentyl group, cyclohexyl group, adamantyl group, norbornyl group, camphoroyl group, cyclopentylmethyl group, cyclopentylethyl group, cyclohexylmethyl group, cyclohexylethyl group, and adamantylmethyl.
- An organic group composed of an alicyclic organic group having 3 to 20 carbon atoms and a linear alkylene group is “an organic group in which one valence of an alicyclic organic group and a linear alkylene group is bonded”. Specifically, for example, a cyclopropylmethyl group, a cyclobutylmethyl group, a cyclopentylmethyl group, a cyclohexylmethyl group, a bornylmethyl group, a norbornylmethyl group, an adamantylmethyl group and the like can be mentioned.
- the number of carbon atoms of the linear alkylene group is not particularly limited, but is 1 to 6, for example.
- Monocyclic or polycyclic lactones having 3 to 30 carbon atoms include ⁇ -butyrolaclone, ⁇ -valerolactone, angelica lactone, ⁇ -hexalactone, ⁇ -heptalactone, ⁇ -octalactone, ⁇ -nonalactone, 3-methyl -4-octanolide (whiskey lactone), ⁇ -decalactone, ⁇ -undecalactone, ⁇ -dodecalactone, ⁇ -jasmolactone (7-decenolactone), ⁇ -hexalactone, 4, 6, 6 (4, 4, 6) -Trimethyltetrahydropyran-2-one, ⁇ -octalactone, ⁇ -nonalactone, ⁇ -decalactone, ⁇ -2-decenolactone, ⁇ -undecalactone, ⁇ -dodecalactone, ⁇ -tridecalactone, ⁇ -tetra Decalactone, lactoskatone,
- aryl group having 6 to 20 carbon atoms examples include phenyl group, o-tolyl group, m-tolyl group, p-tolyl group, p-hydroxyphenyl group, 1-naphthyl group, 1-anthracenyl group, benzyl group and the like. Can be mentioned.
- two hydrogen atoms on the same carbon constituting the alkyl group, alkenyl group, alicyclic organic group, or organic group composed of an alicyclic organic group and a linear alkylene group are substituted with one oxygen atom. It may be a keto group.
- one of the hydrogen atoms on the alkyl group may be substituted with a 2-acryloyloxy group or a 2-methacryloyloxy group.
- the main feature is that a non-conjugated unsaturated site (double bond or triple bond), that is, a polymerizable acyl group can be used.
- the use of the carboxylic acid represented by the general formula [7] is allowed to act on the hydroxyfluoroalkanesulfonic acid onium salt [9].
- the amount is not particularly limited, but is usually 0.1 to 5 mol, preferably 0.2 to 3 mol, relative to 1 mol of hydroxyfluoroalkanesulfonic acid onium salt [9], More preferably, it is 0.5 to 2 mol.
- the amount of carboxylic acid used is particularly preferably 0.8 to 1.5 mol.
- an aprotic solvent such as dichloroethane, toluene, ethylbenzene, monochlorobenzene, acetonitrile, N, N-dimethylformamide or the like is usually used. These solvents may be used alone or in combination of two or more.
- the reaction temperature is not particularly limited, and is usually in the range of 0 to 200 ° C., preferably 20 to 180 ° C., more preferably 50 to 150 ° C.
- the reaction is preferably carried out with stirring.
- reaction time depends on the reaction temperature, it is usually several minutes to 100 hours, preferably 30 minutes to 50 hours, and more preferably 1 to 20 hours. It is preferable to use the analytical instrument such as) as the end point of the reaction when the raw material hydroxyfluoroalkanesulfonic acid onium salt [9] is consumed.
- an organic acid such as p-toluenesulfonic acid and / or an inorganic acid such as sulfuric acid is usually added as an acid catalyst.
- 1,1′-carbonyldiimidazole, N, N′-dicyclohexylcarbodiimide or the like may be added as a dehydrating agent.
- the amount of the acid catalyst to be used is not particularly limited, but is 0.0001 to 10 mol, preferably 0.001 to 5 mol with respect to 1 mol of hydroxyfluoroalkanesulfonic acid onium salt [9]. More preferably, it is 0.01 to 1.5 mol.
- the esterification reaction using an acid catalyst is preferably carried out while dehydrating using a Dean Stark apparatus or the like because the reaction time tends to be shortened.
- the fluoroalkanesulfonic acid onium salt represented by the general formula [10] can be obtained by ordinary means such as extraction, distillation, recrystallization and the like. Moreover, it can also refine
- the amount of the carboxylic acid halide represented by the general formula [7] or the carboxylic acid anhydride represented by the general formula [8], which acts on the acid onium salt [9] is not particularly limited. Usually, it is 0.1 to 5 moles, preferably 0.2 to 3 moles, more preferably 0.5 to 5 moles per mole of hydroxyfluoroalkanesulfonic acid onium salt [9]. There are 2 moles.
- the amount of carboxylic acid halides or carboxylic acid anhydrides used is particularly preferably 0.8 to 1.5 mol.
- the reaction may be performed without a solvent or may be performed in a solvent inert to the reaction.
- a solvent is not particularly limited as long as it is a reaction-inert solvent.
- Hydroxyfluoroalkanesulfonic acid onium salt [9] is a hydrocarbon-based nonpolar solvent such as n-hexane, benzene, or toluene. Is not preferable as a solvent used in this step.
- ketone solvents such as acetone, methyl ethyl ketone or methyl isobutyl ketone, ester solvents such as ethyl acetate or butyl acetate, ether solvents such as diethyl ether, diethylene glycol dimethyl ether, tetrahydrofuran or dioxane, dichloromethane, chloroform, carbon tetrachloride, Halogen solvents such as 1,2-dichloroethane, tetrachloroethylene, chlorobenzene, orthochlorobenzene, polar solvents such as acetonitrile, N, N-dimethylformamide, N, N-dimethylimidazolidinone, dimethyl sulfoxide, sulfolane may be used. preferable. These solvents may be used alone or in combination of two or more. *
- the reaction temperature is not particularly limited and is usually in the range of ⁇ 78 to 150 ° C., preferably ⁇ 20 to 120 ° C., and more preferably 0 to 100 ° C.
- reaction time depends on the reaction temperature, it is usually several minutes to 100 hours, preferably 30 minutes to 50 hours, and more preferably 1 to 20 hours. It is preferable to use the analytical instrument such as) as the end point of the reaction when the raw material hydroxyfluoroalkanesulfonic acid onium salt [9] is consumed.
- the reaction may be carried out in the absence of a catalyst while removing by-product hydrogen halide (for example, hydrogen chloride) from the reaction system.
- a dehydrohalogenating agent for example, hydrogen chloride
- a by-product acid is captured. You may carry out using an acid acceptor.
- Examples of the acid acceptor include triethylamine, pyridine, picoline, dimethylaniline, diethylaniline, 1,4-diazabicyclo [2.2.2] octane (DABCO), 1,8-diazabicyclo [5.4.0].
- Examples include organic bases such as undec-7-ene (DBU) or inorganic bases such as sodium bicarbonate, sodium carbonate, potassium carbonate, lithium carbonate, sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium oxide, etc.
- the amount of the acid acceptor used is not particularly limited, but is 0.05 to 10 mol, preferably 0.1 to 5 mol, relative to 1 mol of hydroxyfluoroalkanesulfonic acid onium salt [9]. More preferably, it is 0.5 to 3 mol.
- the fluoroalkanesulfonic acid onium salt represented by the general formula [9] can be obtained by ordinary means such as extraction and recrystallization. Moreover, it can also refine
- step 4 ′ esterification step 2
- step 4 ′ esterification step 2
- step 4 ′ esterification step 2
- step 5 ′ Onium Salt exchange step 2
- the carboxylic acid and carboxylic acid halide represented by the general formula [11] are used in place of the carboxylic acid and carboxylic acid halide represented by the general formula [7] in the fourth step.
- the carboxylic acid anhydride represented by the general formula [12] is used instead of the carboxylic acid anhydride represented by [8].
- Carboxylic acid bromofluoroalkyl ester represented by the general formula [1] can be produced.
- the obtained aqueous layer was washed twice with 20 mL of isopropyl ether to obtain 19.3 g of the target triphenylsulfonium 1,1,2,2-tetrafluoro-6-methacryloyloxyhexanesulfonate. At this time, the purity was 98%, and the yield was 92%.
- the reaction solution was divided into two layers, and the fluorine ion concentration in the aqueous layer was 240 ppm.
- the organic layer was placed in a glass flask and concentrated, the glass flask was devitrified.
- the solid obtained after concentrating the organic layer was washed with 100 mL of diisopropyl ether, filtered, and dried to obtain the desired 1,1,2,2-tetrafluoro-6-benzoyloxyhexane-1-sulfine. 10.3 g of sodium acid was obtained. At this time, the yield was 51% and the purity was 48%.
- the aqueous layer was discarded again, and 20 g of water, 7.5 g (43.2 mmol / 1.6 equivalent) of sodium dithionite, 4.0 g (47.6 mmol / 1.8 equivalent) of sodium hydrogen carbonate were added, and the mixture was added at 60 ° C. And stirring for 24 hours, the raw material completely disappeared.
- the reaction solution was extracted once with 30 mL of acetonitrile, the obtained organic layer was concentrated, and the solvent was distilled off.
- the solid obtained after concentration was washed with 100 mL of diisopropyl ether, filtered, and dried to obtain the desired sodium 1,1,2,2-tetrafluoro-6-cyclohexylcarbonyloxyhexane-1-sulfinate 11 0.2 g was obtained. At this time, the yield was 45% and the purity was 39%.
- the aqueous layer must be discarded during the reaction, and sodium dithionite and sodium bicarbonate must be added.
- the reaction solution is separated, and the organic layer is distilled off (without washing with water, washing with aqueous sodium thiosulfate or aqueous sodium sulfite) to distill off the desired triethylammonium 1,1,2,2-tetra 33.4 g of fluoro-6-benzoyloxyhexane-1-sulfinate was obtained. At this time, the purity was 60% and the yield was 85%.
- the obtained organic layer was further washed with dilute hydrochloric acid, aqueous sodium hydrogen carbonate, and brine, and after removing water with sodium sulfate and filtering, isopropyl ether was distilled off to obtain the desired methacrylic acid 6-bromo-5,5. 2,6,6-tetrafluorofluorohexane was obtained. At this time, the purity was 96% and the yield was 90%.
- the mixture was stirred at room temperature for 2 hours, filtered, and after adding 1 mg of non-flexible MBP, the target was triphenylsulfonium 1,1,2,2-tetrafluoro-6-methacryloyl by drying the solid. Although 15.1 g of oxyhexanesulfonate was obtained, the purity was 76%, and 22% triphenylsulfonium 1,1,2,2-tetrafluoro-6-hydroxyhexanesulfonate was contained.
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Abstract
Description
まず、本願発明全体に共通する原料化合物となるフルオロアルカンスルフィン酸アンモニウム塩の合成方法につき、検討を行った。
で表されるカルボン酸ブロモフルオロアルキルエステルの場合にも、DMFやアセトニトリル、メタノール等の極性溶媒と水との混合溶媒中、亜ジチオン酸ナトリウムを使用することによって、対応する、下記一般式[13]
で表される新規化合物である。このスルフィン酸アンモニウム塩は親油性が高く親水性が低いため、有機溶媒で容易に抽出することが可能であり、従って問題となっていたフッ化物イオンや臭化ナトリウム等の無機塩を、水洗で除去することができるということも見出した。そうすることによって反応器の制限を受けることが無くなり、また次工程の酸化工程における副反応を抑えることができるようになるという知見を得た。
まず、上記[態様1]の方法(これを「第1工程」とも言う)で得た一般式[2]で表されるフルオロアルカンスルフィン酸アンモニウム塩を、第2工程である酸化工程に付することで、一般式[3]
で表されるフルオロアルカンスルホン酸アンモニウム塩を得ることができることを見出した。
上記、[態様2]の方法によって合成した、一般式[3]で表されるフルオロアルカンスルホン酸アンモニウム塩を、続いて「オニウム塩交換工程1(第3工程)」に付すことによって、一般式[5]で表されるフルオロアルカンスルホン酸オニウム塩を得ることができることを見出した(下記反応式[3]参照)。
上述の通り、[態様3]によって合成できる化合物の官能基Rの種類には制限がある。すなわち、[態様3]で合成できる化合物の官能基Rは「炭素数1~10の直鎖状もしくは分岐状のアルキル基、炭素数3~20の脂環式有機基、炭素数3~20の脂環式有機基と直鎖状のアルキレン基からなる有機基、炭素数3~30の単環式もしくは多環式ラクトン、あるいは炭素数6~20のアリール基を表す。(ここで、該アルキル基、脂環式有機基、脂環式有機基と直鎖状のアルキレン基からなる有機基、単環式もしくは多環式ラクトン及びアリール基上の水素原子の一部または全てはフッ素、ヒドロキシル基、ヒドロキシカルボニル基、炭素数1~6の直鎖状、分岐状もしくは環状のアルコキシ基で置換されていても良い。また、該アルキル基、脂環式有機基もしくは脂環式有機基と直鎖状のアルキレン基からなる有機基を構成する同一炭素上の2つの水素原子は1つの酸素原子で置換されケト基となっていても良い。ただし、Rとして、その構造内に、非共役不飽和部位(二重結合または三重結合)を有するものは除く。)」であり、Rとして、その構造内に、アリール基やヘテロアリール基のような共役不飽和部位を有する芳香環以外の、非共役不飽和部位(二重結合または三重結合)を有するものは除外される。これは、第1工程(スルフィン化工程)に起因する。すなわち、Rとして、その構造内に非共役不飽和部位(二重結合または三重結合)を有するものを、当該第1工程(スルフィン化工程)の原料とすると、非共役不飽和部位が副反応を起こし、目的とするスルフィン化物を得ることは困難であることを、発明者らは知った。
で表されるヒドロキシフルオロアルカンスルホン酸塩を得、次いで、一般式[4]で表される一価のオニウム塩
で表されるカルボン酸誘導体と反応させる(第5工程:エステル化工程2)ことを特徴とする、一般式[10]
下記一般式[2]で表されることを特徴とするフルオロアルカンスルフィン酸アンモニウム塩。
A+が一般式[I]で示されるアンモニウムイオンである発明1に記載の塩。
下記一般式[1]
(前記一般式[1]および一般式[2]において、Rは炭素数1~10の直鎖状もしくは分岐状のアルキル基、炭素数3~20の脂環式有機基、炭素数3~20の脂環式有機基と直鎖状のアルキレン基からなる有機基、炭素数3~30の単環式もしくは多環式ラクトン、あるいは炭素数6~20のアリール基を表す。(ここで、該アルキル基、脂環式有機基、脂環式有機基と直鎖状のアルキレン基からなる有機基、単環式もしくは多環式ラクトン及びアリール基上の水素原子の一部または全てはフッ素、ヒドロキシル基、ヒドロキシカルボニル基、炭素数1~6の直鎖状、分岐状もしくは環状のアルコキシ基で置換されていても良い。また、該アルキル基、脂環式有機基もしくは脂環式有機基と直鎖状のアルキレン基からなる有機基を構成する同一炭素上の2つの水素原子は1つの酸素原子で置換されケト基となっていても良い。ただし、Rとして、その構造内に、非共役不飽和部位(二重結合または三重結合)を有するものは除く。)A+はアンモニウムイオンを表す。Xは、それぞれ独立に、水素原子、フッ素原子、炭素数1~6のアルキル基、炭素数1~6の含フッ素アルキル基からなる群より選ばれた基を表す。nは、1~8の整数を表す。)
下記の2工程を含むことによる一般式[3]
第1工程(スルフィン化工程):下記一般式[1]
第2工程(酸化工程):第1工程(スルフィン化工程)で得られた、一般式[2]で表されるフルオロアルカンスルフィン酸アンモニウム塩を酸化剤と反応させ、一般式[3]で表されるフルオロアルカンスルホン酸アンモニウム塩を得る工程。
(前記一般式[1]から一般式[3]において、Rは炭素数1~10の直鎖状もしくは分岐状のアルキル基、炭素数3~20の脂環式有機基、炭素数3~20の脂環式有機基と直鎖状のアルキレン基からなる有機基、炭素数3~30の単環式もしくは多環式ラクトン、あるいは炭素数6~20のアリール基を表す。(ここで、該アルキル基、脂環式有機基、脂環式有機基と直鎖状のアルキレン基からなる有機基、単環式もしくは多環式ラクトン及びアリール基上の水素原子の一部または全てはフッ素、ヒドロキシル基、ヒドロキシカルボニル基、炭素数1~6の直鎖状、分岐状もしくは環状のアルコキシ基で置換されていても良い。また、該アルキル基、脂環式有機基もしくは脂環式有機基と直鎖状のアルキレン基からなる有機基を構成する同一炭素上の2つの水素原子は1つの酸素原子で置換されケト基となっていても良い。ただし、Rとして、その構造内に、非共役不飽和部位(二重結合または三重結合)を有するものは除く。)A+はアンモニウムイオンを表す。Xは、それぞれ独立に、水素原子、フッ素原子、炭素数1~6のアルキル基、炭素数1~6の含フッ素アルキル基からなる群より選ばれた基を表す。nは、1~8の整数を表す。)
発明4の方法で得られた一般式[3]で表されるフルオロアルカンスルホン酸アンモニウム塩を、一般式[4]で表される一価のオニウム塩
(前記一般式[4]において、X-は1価のアニオンを示す。前記一般式[5]において、Rは一般式[1]~一般式[3]におけるRと同義である。前記一般式[4]及び一般式[5]においてQ+は下記一般式(a)もしくは下記一般式(b)で示されるスルホニウムカチオン、または下記一般式(c)で示されるヨードニウムカチオンを示す。
発明4の方法で得られた一般式[3]で表されるフルオロアルカンスルホン酸アンモニウム塩を鹸化(第3’工程:鹸化工程)し、一般式[6]
(前記一般式[6]および一般式[9]において、M+は対カチオンを表す。前記一般式[7]において、X’はヒドロキシル基もしくはハロゲンを表す。前記一般式[7]~一般式[10]において、R’は炭素数1~10の直鎖状もしくは分岐状のアルキル基、炭素数1~10の直鎖状もしくは分岐状の少なくとも末端部に重合性二重結合を有するアルケニル基、炭素数3~20の脂環式有機基、炭素数3~20の脂環式有機基と直鎖状のアルキレン基からなる有機基、炭素数3~30の単環式もしくは多環式ラクトン、あるいは炭素数6~20のアリール基を表す(ここで、該アルキル基、アルケニル基、脂環式有機基、脂環式有機基と直鎖状のアルキレン基からなる有機基、単環式もしくは多環式ラクトン及びアリール基上の水素原子の一部または全てはフッ素、ヒドロキシル基、ヒドロキシカルボニル基、炭素数1~6の直鎖状、分岐状もしくは環状のアルコキシ基で置換されていても良い。また、該アルキル基、アルケニル基、脂環式有機基もしくは脂環式有機基と直鎖状のアルキレン基からなる有機基を構成する同一炭素上の2つの水素原子は1つの酸素原子で置換されケト基となっていても良い。さらに該アルキル基上の水素原子の1つは、2-アクリロイルオキシ基もしくは2-メタクリロイルオキシ基で置換されていても良い。)。前記一般式[10]において、Q+は一般式[4]および一般式[5]におけるQ+と同義である。Xは、それぞれ独立に、水素原子、フッ素原子、炭素数1~6のアルキル基、炭素数1~6の含フッ素アルキル基からなる群より選ばれた基を表す。nは、1~8の整数を表す。)
発明3乃至発明6の何れか1つにおいて、カルボン酸ブロモフルオロアルキルエステルが、次の一般式[A]
(前記一般式[A]において、Xは、それぞれ独立に、水素原子、フッ素原子、炭素数1~6のアルキル基、炭素数1~6の含フッ素アルキル基からなる群より選ばれた基を表す。nは、1~8の整数を表す。)
発明3乃至発明7の何れか1つにおいて、スルフィン化反応後に得られたフルオロアルカンスルフィン酸アンモニウム塩の粗体を、有機溶媒で抽出し、その有機溶媒からなる層を、水で洗浄して精製することを特徴とする発明3乃至発明7の何れか1つに記載の方法。
発明3乃至発明8の何れか1つにおいて、スルフィン化反応後に得られたフルオロアルカンスルフィン酸アンモニウム塩の粗体を、有機溶媒で抽出し、その有機溶媒からなる層を、チオ硫酸金属塩水溶液もしくは亜硫酸金属塩水溶液で洗浄して精製することを特徴とする、発明3乃至発明8の何れか1つに記載の方法。
発明3乃至発明9の何れか1つにおいて、酸化反応後に得られたフルオロアルカンスルホン酸アンモニウム塩の粗体を、有機溶媒で抽出し、その有機溶媒からなる層を、水で洗浄して精製することを特徴とする、発明3乃至発明9の何れか1つに記載の方法。
次いで、製造方法に関する発明について説明する。本発明は下記反応式[7]
まず、本発明の第1工程について説明する。第1工程は、一般式[1]で表されるカルボン酸ブロモフルオロアルキルエステルをスルフィン化剤と有機塩基の存在下で反応させ、フルオロアルカンスルフィン酸アンモニウム塩を得る工程(スルフィン化工程)である。
次に、本発明の第2工程について説明する。第2工程は、第1工程で得られたフルオロアルカンスルフィン酸アンモニウム塩[2]を酸化剤と反応させ、一般式[3]で表されるフルオロアルカンスルホン酸アンモニウム塩を得る工程(酸化工程)である。
次いで、本発明の第3工程について説明する。第3工程は、第2工程で得られた一般式[3]で表されるフルオロアルカンスルホン酸アンモニウム塩を、一般式[4]
一般式(a)におけるR1、R2及びR3としては具体的に以下のものが挙げられる。アルキル基として、メチル基、エチル基、n-プロピル基、イソプロピル基、シクロプロピル基、n-ブチル基、sec-ブチル基、イソブチル基、tert-ブチル基、n-ペンチル基、シクロペンチル基、n-ヘキシル基、n-ヘプチル基、2-エチルヘキシル基、シクロヘキシル基、シクロヘプチル基、4-メチルシクロヘキシル基、シクロヘキシルメチル基、n-オクチル基、n-デシル基、1-アダマンチル基、2-アダマンチル基、ビシクロ[2.2.1]ヘプテン-2-イル基、1-アダマンタンメチル基、2-アダマンタンメチル基等が挙げられる。アルケニル基としては、ビニル基、アリル基、プロペニル基、ブテニル基、ヘキセニル基、シクロヘキセニル基等が挙げられる。オキソアルキル基としては、2-オキソシクロペンチル基、2-オキソシクロヘキシル基、2-オキソプロピル基、2-オキソエチル基、2-シクロペンチル-2-オキソエチル基、2-シクロヘキシル-2-オキソエチル基、2-(4-メチルシクロヘキシル)-2-オキソエチル基等を挙げることができる。アリール基としては、フェニル基、ナフチル基、チエニル基等やp-メトキシフェニル基、m-メトキシフェニル基、o-メトキシフェニル基、p-エトキシフェニル基、p-tert-ブトキシフェニル基、m-tert-ブトキシフェニル基等のアルコキシフェニル基、2-メチルフェニル基、3-メチルフェニル基、4-メチルフェニル基、エチルフェニル基等のアルキルフェニル基、メチルナフチル基、エチルナフチル基等のアルキルナフチル基、ジエチルナフチル基等のジアルキルナフチル基、ジメトキシナフチル基、ジエトキシナフチル基等のジアルコキシナフチル基等が挙げられる。アラルキル基としては、ベンジル基、1-フェニルエチル基、2-フェニルエチル基等が挙げられる。アリールオキソアルキル基としては、2-フェニル-2-オキソエチル基、2-(1-ナフチル)-2-オキソエチル基、2-(2-ナフチル)-2-オキソエチル基等の2-アリール-2-オキソエチル基等が挙げられる。また、R1、R2及びR3のうちのいずれか2つ以上が相互に結合して硫黄原子を介して環状構造を形成する場合には、1,4-ブチレン、3-オキサ-1,5-ペンチレン等が挙げられる。更には置換基としてアクリロイルオキシ基、メタクリロイルオキシ基等の重合可能な置換基を有するアリール基が挙げられ、具体的には4-(アクリロイルオキシ)フェニル基、4-(メタクリロイルオキシ)フェニル基、4-ビニルオキシフェニル基、4-ビニルフェニル基等が挙げられる。
一般式(b)におけるR4-(O)n-基の置換基位置は特に限定されるものではないが、フェニル基の4位あるいは3位が好ましい。より好ましくは4位である。ここでnは0(零)又は1である。R4としては、具体的に、メチル基、エチル基、n-プロピル基、sec-プロピル基、シクロプロピル基、n-ブチル基、sec-ブチル基、iso-ブチル基、tert-ブチル基、n-ペンチル基、シクロペンチル基、n-ヘキシル基、シクロヘキシル基、n-オクチル基、n-デシル基、n-ドデシル基、1-アダマンチル基、2-アダマンチル基、ビシクロ[2.2.1]ヘプテン-2-イル基、フェニル基、4-メトキシフェニル基、4-tert-ブチルフェニル基、4-ビフェニル基、1-ナフチル基、2-ナフチル基、10-アントラニル基、2-フラニル基、更にn=1の場合に、アクリロイル基、メタクリロイル基、ビニル基、アリル基が挙げられる。
一般式(c)におけるR4-(O)n-基の置換基位置は特に限定されるものではないが、フェニル基の4位あるいは3位が好ましい。より好ましくは4位である。ここでnは0(零)又は1である。R4の具体例は上述した一般式(b)におけるR4と同じものを再び挙げることができる。
次いで、本発明の第3’工程について説明する。第3’工程は、第2工程で得られた一般式[3]で表されるフルオロアルカンスルホン酸アンモニウム塩を鹸化(塩基性物質存在下での加水分解)して、一般式[6]で表されるヒドロキシフルオロアルカンスルホン酸塩を得る工程(鹸化工程)である。
次に、本発明の第4工程について説明する。第4工程は、第3‘工程で得られた一般式[6]で表されるヒドロキシフルオロアルカンスルホン酸塩を、一般式[4]で表される一価のオニウム塩を用いてオニウム塩交換し、一般式[9]で表されるヒドロキシフルオロアルカンスルホン酸オニウム塩を得る工程(オニウム塩交換工程2)である。本工程は、前述した第3工程(オニウム塩交換工程1)と同様に実施することができる。
次に、本発明の第5工程について説明する。第5工程は、第4工程で得られた一般式[9]で表されるヒドロキシフルオロアルカンスルホン酸オニウム塩を、一般式[7]もしくは一般式[8]で表されるカルボン酸誘導体と反応させて、エステル化し、一般式[10]で表されるフルオロアルカンスルホン酸オニウム塩を製造する工程である。
最後に、本発明の前工程について説明する。前工程は、対応するブロモフルオロアルコールを、一般式[11]もしくは一般式[12]で表されるカルボン酸誘導体と反応させて、エステル化し、一般式[1]で表されるカルボン酸ブロモフルオロアルキルエステルを製造する工程である。
1H NMR(測定溶媒:重ジメチルスルホキシド,基準物質:テトラメチルシラン);δ=7.99(m,2H),7.65(m,1H),7.50(m,2H),4.01(m,2H),2.07(m,2H),1.58(m,4H)
19F NMR(測定溶媒:重ジメチルスルホキシド,基準物質:トリクロロフルオロメタン);δ=-66.1(s,2F)、-110.9(s,2F)
1H NMR(測定溶媒:重ジメチルスルホキシド,基準物質:テトラメチルシラン);δ=7.85(m,2H),7.20(m,2H),7.46(m,1H),4.01(m,2H),3.10(m,6H),2.17(m,2H),1.61(m,4H),1.18(t,9H)
19F NMR(測定溶媒:重ジメチルスルホキシド,基準物質:トリクロロフルオロメタン);δ=-111.2(s,2F)、-130.1(s,2F)
1H NMR(測定溶媒:重ジメチルスルホキシド,基準物質:テトラメチルシラン);δ=7.85(m,2H),7.20(m,2H),7.46(m,1H),4.01(m,2H),3.10(m,6H),2.17(m,2H),1.61(m,4H),1.18(t,9H)
19F NMR(測定溶媒:重ジメチルスルホキシド,基準物質:トリクロロフルオロメタン);δ=-112.0(s,2F)、-117.3(s,2F)
1H NMR(測定溶媒:重ジメチルスルホキシド,基準物質:テトラメチルシラン);δ=7.85(m,2H),7.65(m,15H),7.46(m,1H),7.20(m,2H),4.01(m,2H),2.07(m,2H),1.61(m,4H)
19F NMR(測定溶媒:重ジメチルスルホキシド,基準物質:トリクロロフルオロメタン);δ=-113.0(s,2F)、-117.3(s,2F)
1H NMR(測定溶媒:重ジメチルスルホキシド,基準物質:テトラメチルシラン);δ=4.01(m,2H),2.25(m,1H),2.07(m,2H),1.80(m,4H),1.58(m,4H),1.42(m,6H)
19F NMR(測定溶媒:重ジメチルスルホキシド,基準物質:トリクロロフルオロメタン);δ=-66.1(s,2F)、-110.9(s,2F)
1H NMR(測定溶媒:重ジメチルスルホキシド,基準物質:テトラメチルシラン);δ=4.01(m,2H),3.10(m,6H),2.26(m,1H),2.17(m,2H),1.54(m,4H),1.23(m,6H),1.61(m,4H),1.18(t,9H)
19F NMR(測定溶媒:重ジメチルスルホキシド,基準物質:トリクロロフルオロメタン);δ=-111.2(s,2F)、-130.1(s,2F)
1H NMR(測定溶媒:重ジメチルスルホキシド,基準物質:テトラメチルシラン);δ=4.01(m,2H),3.10(m,6H),2.26(m,1H),2.17(m,2H),1.54(m,4H),1.23(m,6H),1.61(m,4H),1.18(t,9H)
19F NMR(測定溶媒:重ジメチルスルホキシド,基準物質:トリクロロフルオロメタン);δ=-112.0(s,2F)、-117.3(s,2F)
1H NMR(測定溶媒:重ジメチルスルホキシド,基準物質:テトラメチルシラン);δ=7.65(m,15H),4.01(m,2H),2.26(m,1H),2.07(m,2H),1.54(m,4H),1.23(m,6H),1.58(m,4H)
19F NMR(測定溶媒:重ジメチルスルホキシド,基準物質:トリクロロフルオロメタン);δ=-113.0(s,2F)、-117.3(s,2F)
1H NMR(測定溶媒:重ジメチルスルホキシド,基準物質:テトラメチルシラン);δ=6.40(s,1H),5.85(m,1H),4.46(t,2H),2.77(m,2H),2.27(m,4H),2.23(s,3H)
19F NMR(測定溶媒:重ジメチルスルホキシド,基準物質:トリクロロフルオロメタン);δ=-112.5(s,2F)、-118.1(s,2F)
1H NMR(測定溶媒:重ジメチルスルホキシド,基準物質:テトラメチルシラン);δ=7.90(m,15H),4.43(s,1H),3.37(m,2H),2.15(m,2H),1.47(m,4H)
19F NMR(測定溶媒:重ジメチルスルホキシド,基準物質:トリクロロフルオロメタン);δ=-111.9(s,2F)、-117.3(s,2F)
1H NMR(測定溶媒:重ジメチルスルホキシド,基準物質:テトラメチルシラン);δ=8.06(m,15H),6.40(s,1H),5.85(m,1H),4.46(t,2H),2.77(m,2H),2.27(m,4H),2.23(s,3H)
19F NMR(測定溶媒:重ジメチルスルホキシド,基準物質:トリクロロフルオロメタン);δ=-113.5(s,2F)、-118.1(s,2F)
Claims (10)
- 下記一般式[2]で表されることを特徴とするフルオロアルカンスルフィン酸アンモニウム塩。
- 下記一般式[1]
(前記一般式[1]および一般式[2]において、Rは炭素数1~10の直鎖状もしくは分岐状のアルキル基、炭素数3~20の脂環式有機基、炭素数3~20の脂環式有機基と直鎖状のアルキレン基からなる有機基、炭素数3~30の単環式もしくは多環式ラクトン、あるいは炭素数6~20のアリール基を表す。(ここで、該アルキル基、脂環式有機基、脂環式有機基と直鎖状のアルキレン基からなる有機基、単環式もしくは多環式ラクトン及びアリール基上の水素原子の一部または全てはフッ素、ヒドロキシル基、ヒドロキシカルボニル基、炭素数1~6の直鎖状、分岐状もしくは環状のアルコキシ基で置換されていても良い。また、該アルキル基、脂環式有機基もしくは脂環式有機基と直鎖状のアルキレン基からなる有機基を構成する同一炭素上の2つの水素原子は1つの酸素原子で置換されケト基となっていても良い。ただし、Rとして、その構造内に、非共役不飽和部位(二重結合または三重結合)を有するものは除く。)A+はアンモニウムイオンを表す。Xは、それぞれ独立に、水素原子、フッ素原子、炭素数1~6のアルキル基、炭素数1~6の含フッ素アルキル基からなる群より選ばれた基を表す。nは、1~8の整数を表す。) - 下記の2工程を含むことによる一般式[3]
第1工程(スルフィン化工程):下記一般式[1]
(前記一般式[1]から一般式[3]において、Rは炭素数1~10の直鎖状もしくは分岐状のアルキル基、炭素数3~20の脂環式有機基、炭素数3~20の脂環式有機基と直鎖状のアルキレン基からなる有機基、炭素数3~30の単環式もしくは多環式ラクトン、あるいは炭素数6~20のアリール基を表す。(ここで、該アルキル基、脂環式有機基、脂環式有機基と直鎖状のアルキレン基からなる有機基、単環式もしくは多環式ラクトン及びアリール基上の水素原子の一部または全てはフッ素、ヒドロキシル基、ヒドロキシカルボニル基、炭素数1~6の直鎖状、分岐状もしくは環状のアルコキシ基で置換されていても良い。また、該アルキル基、脂環式有機基もしくは脂環式有機基と直鎖状のアルキレン基からなる有機基を構成する同一炭素上の2つの水素原子は1つの酸素原子で置換されケト基となっていても良い。ただし、Rとして、その構造内に、非共役不飽和部位(二重結合または三重結合)を有するものは除く。)A+はアンモニウムイオンを表す。Xは、それぞれ独立に、水素原子、フッ素原子、炭素数1~6のアルキル基、炭素数1~6の含フッ素アルキル基からなる群より選ばれた基を表す。nは、1~8の整数を表す。) - 請求項4の方法で得られた一般式[3]で表されるフルオロアルカンスルホン酸アンモニウム塩を、一般式[4]で表される一価のオニウム塩
(前記一般式[4]において、X-は1価のアニオンを示す。前記一般式[5]において、Rは一般式[1]~一般式[3]におけるRと同義である。前記一般式[4]及び一般式[5]においてQ+は下記一般式(a)もしくは下記一般式(b)で示されるスルホニウムカチオン、または下記一般式(c)で示されるヨードニウムカチオンを示す。
- 請求項4の方法で得られた一般式[3]で表されるフルオロアルカンスルホン酸アンモニウム塩を鹸化(第3’工程:鹸化工程)し、一般式[6]
(前記一般式[6]および一般式[9]において、M+は対カチオンを表す。前記一般式[7]において、X’はヒドロキシル基もしくはハロゲンを表す。前記一般式[7]~一般式[10]において、R’は炭素数1~10の直鎖状もしくは分岐状のアルキル基、炭素数1~10の直鎖状もしくは分岐状の少なくとも末端部に重合性二重結合を有するアルケニル基、炭素数3~20の脂環式有機基、炭素数3~20の脂環式有機基と直鎖状のアルキレン基からなる有機基、炭素数3~30の単環式もしくは多環式ラクトン、あるいは炭素数6~20のアリール基を表す(ここで、該アルキル基、アルケニル基、脂環式有機基、脂環式有機基と直鎖状のアルキレン基からなる有機基、単環式もしくは多環式ラクトン及びアリール基上の水素原子の一部または全てはフッ素、ヒドロキシル基、ヒドロキシカルボニル基、炭素数1~6の直鎖状、分岐状もしくは環状のアルコキシ基で置換されていても良い。また、該アルキル基、アルケニル基、脂環式有機基もしくは脂環式有機基と直鎖状のアルキレン基からなる有機基を構成する同一炭素上の2つの水素原子は1つの酸素原子で置換されケト基となっていても良い。さらに該アルキル基上の水素原子の1つは、2-アクリロイルオキシ基もしくは2-メタクリロイルオキシ基で置換されていても良い。)。前記一般式[10]において、Q+は一般式[4]および一般式[5]におけるQ+と同義である。Xは、それぞれ独立に、水素原子、フッ素原子、炭素数1~6のアルキル基、炭素数1~6の含フッ素アルキル基からなる群より選ばれた基を表す。nは、1~8の整数を表す。) - 請求項3乃至請求項7の何れか1項において、スルフィン化反応後に得られたフルオロアルカンスルフィン酸アンモニウム塩の粗体を、有機溶媒で抽出し、その有機溶媒からなる層を、水で洗浄して精製することを特徴とする請求項3乃至請求項7の何れか1項に記載の方法。
- 請求項3乃至請求項8の何れか1項において、スルフィン化反応後に得られたフルオロアルカンスルフィン酸アンモニウム塩の粗体を、有機溶媒で抽出し、その有機溶媒からなる層を、チオ硫酸金属塩水溶液もしくは亜硫酸金属塩水溶液で洗浄して精製することを特徴とする、請求項3乃至請求項8の何れか1項に記載の方法。
- 請求項3乃至請求項9の何れか1項において、酸化反応後に得られたフルオロアルカンスルホン酸アンモニウム塩の粗体を、有機溶媒で抽出し、その有機溶媒からなる層を、水で洗浄して精製することを特徴とする、請求項3乃至請求項9の何れか1項に記載の方法。
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MX2013000925A (es) | 2010-07-30 | 2013-10-28 | Coopervision Int Holding Co Lp | Moldes de dispositivos oftalmicos y metodos relacionados. |
JP2012136507A (ja) * | 2010-11-15 | 2012-07-19 | Rohm & Haas Electronic Materials Llc | 塩基反応性光酸発生剤およびこれを含むフォトレジスト |
US10831100B2 (en) | 2017-11-20 | 2020-11-10 | Rohm And Haas Electronic Materials, Llc | Iodine-containing photoacid generators and compositions comprising the same |
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- 2010-03-11 JP JP2010054088A patent/JP5549288B2/ja active Active
- 2010-03-12 KR KR1020117023367A patent/KR20110123798A/ko not_active Application Discontinuation
- 2010-03-12 US US13/254,708 patent/US8877960B2/en not_active Expired - Fee Related
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JP2010235600A (ja) | 2010-10-21 |
JP5549288B2 (ja) | 2014-07-16 |
KR20110123798A (ko) | 2011-11-15 |
US20110313190A1 (en) | 2011-12-22 |
US8877960B2 (en) | 2014-11-04 |
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