WO2010074062A1 - 含フッ素アルキルスルホニルアミノエチル α-置換アクリレート類の製造方法 - Google Patents
含フッ素アルキルスルホニルアミノエチル α-置換アクリレート類の製造方法 Download PDFInfo
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- WO2010074062A1 WO2010074062A1 PCT/JP2009/071294 JP2009071294W WO2010074062A1 WO 2010074062 A1 WO2010074062 A1 WO 2010074062A1 JP 2009071294 W JP2009071294 W JP 2009071294W WO 2010074062 A1 WO2010074062 A1 WO 2010074062A1
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- 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
- C07C303/36—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of amides of sulfonic acids
- C07C303/38—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of amides of sulfonic acids by reaction of ammonia or amines with sulfonic acids, or with esters, anhydrides, or halides thereof
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- 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
- C07C303/36—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of amides of sulfonic acids
- C07C303/40—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of amides of sulfonic acids by reactions not involving the formation of sulfonamide groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C311/00—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
- C07C311/01—Sulfonamides having sulfur atoms of sulfonamide groups bound to acyclic carbon atoms
- C07C311/02—Sulfonamides having sulfur atoms of sulfonamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
- C07C311/03—Sulfonamides having sulfur atoms of sulfonamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton having the nitrogen atoms of the sulfonamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C311/04—Sulfonamides having sulfur atoms of sulfonamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton having the nitrogen atoms of the sulfonamide groups bound to hydrogen atoms or to acyclic carbon atoms to acyclic carbon atoms of hydrocarbon radicals substituted by singly-bound oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C311/00—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
- C07C311/01—Sulfonamides having sulfur atoms of sulfonamide groups bound to acyclic carbon atoms
- C07C311/02—Sulfonamides having sulfur atoms of sulfonamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
- C07C311/09—Sulfonamides having sulfur atoms of sulfonamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton the carbon skeleton being further substituted by at least two halogen atoms
Definitions
- the present invention relates to fluorine-containing alkylsulfonylaminoethyl ⁇ -substituted acrylates represented by the general formula [5], which are compounds useful as monomers corresponding to next-generation photoresists.
- R 1 is a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a sec-butyl group, a tert-butyl group, a fluoromethyl group, a difluoromethyl group, a trimethyl group, A fluoromethyl group or a perfluoroethyl group, and R 2 represents a fluorine-containing alkyl group having 1 to 6 carbon atoms.
- Fluorine alkylsulfonylaminoethanols (Wherein R 2 is the same as in general formula [5]).
- Patent Document 1 Sulfonylaminoethyl ⁇ -substituted acrylates are promising compounds as monomers for next-generation resist materials, and resists containing such monomers as constituent elements are excellent in light transmission, surface adhesion, and resist solubility. It is known that development of a resist can be improved (Patent Document 1, Patent Document 2).
- Patent Document 3 a resist composition containing a fluorosulfonamide-containing polymer produced using the monomer is useful as a negative resist composition because the resist material has excellent etching resistance and solubility in a developer.
- a resist composition containing a fluorosulfonamide-containing polymer produced using the monomer is useful as a negative resist composition because the resist material has excellent etching resistance and solubility in a developer.
- the production method includes the following two production methods depending on the order of the reaction. Can be considered.
- A A method in which ethanolamine hydrochloride is esterified with an ⁇ -substituted acrylic acid derivative and then sulfonylamidated with a fluorine-containing alkylsulfonic acid derivative.
- B A method in which ethanolamine is sulfonylamidated with a fluorine-containing alkylsulfonic acid derivative and then esterified with an ⁇ -substituted acrylic acid derivative.
- Patent Document 4 discloses aminoethyl ⁇ -substituted acrylate obtained by sulfonylamidation or a salt thereof in a solvent in the presence of a specific base or a fluorine-containing alkylsulfonic acid halide or fluorine-containing compound.
- a method of synthesizing a fluorine-containing alkylsulfonylaminoethyl ⁇ -substituted acrylate represented by the general formula [5] by reacting with an alkylsulfonic anhydride is shown (the following scheme).
- Patent Document 3 discloses a similar reaction in Examples, and describes an example in which commercially available 2-aminoethyl methacrylate hydrochloride is sulfonated with trifluoromethanesulfonic acid chloride in methylene chloride. (Wherein the meaning of R 1 and R 2 are as defined above.)
- Patent Document 1 and Patent Document 2 only describe a method for producing ⁇ -substituted acrylates in a broad concept with respect to the latter reaction (esterification reaction).
- an acid scavenger typically pyridine or triethylamine
- trifluoromethanesulfonic anhydride and 1-bicyclo [2,2,1] hept-5-en-2-ylmethanamine are mixed in an anhydrous methylene chloride solvent.
- An example of reacting in the presence of triethylamine as a base (Non-patent Document 1) is known.
- trifluoromethanesulfonic anhydride is allowed to act on a compound such as aminoethanol that has both an amino group and a hydroxyl group and has two sites that can react with the sulfonating agent, It was not known.
- methylene chloride is used as a reaction solvent.
- methylene chloride is a harmful substance, it is preferably used in a large amount on an industrial scale. Absent.
- Patent Document 3 and Patent Document 4 both involve sulfonylamidation by reacting ethanolamines having a polymerizable double bond with a fluorine-containing alkylsulfonic acid derivative.
- a fluorine-containing alkylsulfonic acid halide is allowed to act, there is a problem that a halogen addition reaction occurs in the double bond portion as a side reaction.
- fluorine-containing alkyl sulfonic acid chloride 1 to 6% of a chlorine adduct represented by the following formula is by-produced. (In the formula, the meanings of R 1 and R 2 are the same as above.)
- the two bond portion may be cleaved by heat or light, and the polymerization may proceed.
- heat and light conditions may not be controlled in operations such as preparation, reaction, and purification.
- esterification involved in the introduction of the fluorine-containing acrylic acid derivative is in the last step.
- the present invention provides a fluorine-containing alkylsulfonylaminoethanol represented by the general formula [3] as a production method instead of the conventional method (a). (Wherein, the meaning of R 2 is the same as above) is provided industrially and efficiently. Further, the fluorine-containing alkylsulfonylaminoethyl ⁇ -substituted acrylate represented by the general formula [5] is provided. It is an object of the present invention to provide a production method for efficiently synthesizing a compound.
- the present invention includes the following inventions “Invention 1” to “Invention 8”, and provides a method for producing fluorine-containing alkylsulfonylaminoethanols and a method for producing fluorine-containing alkylsulfonylaminoethyl ⁇ -substituted acrylates.
- [Invention 1] Aminoethanol represented by the formula [1] Is a fluorine-containing alkylsulfonic anhydride represented by the general formula [2] (In the general formula [2], R 2 represents a fluorine-containing alkyl group having 1 to 6 carbon atoms) and a fluorine-containing alkylsulfonylaminoethanol represented by the general formula [3] (Wherein R 2 has the same meaning as described above).
- Base is ethanolamine, trimethylamine, triethylamine, N, N-diethylmethylamine, tripropylamine, tributylamine, pyridine, 2,6-dimethylpyridine, dimethylaminopyridine, sodium carbonate, potassium carbonate, sodium hydroxide, hydroxylated
- the solvent is acetonitrile, benzonitrile, ethyl acetate, isopropyl alcohol, dimethylimidazolidinone, dimethyl sulfoxide, diethyl ether, diisopropyl ether, dibutyl ether, tetrahydrofuran, 1,1,2,2,3,3,4-heptafluorocyclo
- the production method according to invention 5 which is at least one solvent selected from the group consisting of pentane, trifluoromethylbenzene, 1,3-bis (trifluoromethyl) benzene, and 1,4-bis (trifluoromethyl) benzene. .
- [Invention 8] An ⁇ -substituted acrylic acid derivative represented by the general formula [4] obtained from the fluorine-containing alkylsulfonylaminoethanol represented by the general formula [3] obtained by the method according to any one of the inventions 1 to 7
- R 1 is a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a sec-butyl group, a tert-butyl group, a fluoromethyl group, a difluoromethyl group, trifluoro A methyl group or a perfluoroethyl group
- Y is a fluorine atom, a chlorine atom, a bromine atom or a group having the structure shown in [4a] below.
- fluorine-containing alkylsulfonylaminoethyl ⁇ -substituted acrylates represented by the general formula [5] (Wherein R 1 is a hydrogen atom, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, fluoromethyl group, difluoromethyl group, trifluoromethyl) Group, or a perfluoroethyl group, and R 2 has 1 to 6 carbon atoms. Represents a fluorine-containing alkyl group. ) Manufacturing method.
- fluorine-containing alkylsulfonylaminoethyls that are raw materials for fluorine-containing alkylsulfonylaminoethyl ⁇ -substituted acrylates useful as resist monomers can be efficiently produced by an industrial technique. Furthermore, by subjecting the fluorine-containing alkylsulfonylaminoethanols to an esterification reaction with ⁇ -substituted acrylates, the fluorine-containing alkylsulfonylaminoethyl ⁇ -substituted acrylates can be efficiently converted with good operability.
- a fluorine-containing alkylsulfonylaminoethanol which is the first target product is produced by the first step (sulfonylamidation step), and the fluorine-containing alkyl which is the final target compound is produced by the subsequent second step (esterification step).
- This is a method for producing sulfonylaminoethyl ⁇ -substituted acrylates.
- Each reaction step (sulfonyl amidation step, esterification step) of the present invention can be carried out in a batch type reaction apparatus. Although the conditions are described below, it does not prevent each reaction apparatus from changing the reaction conditions to an extent that can be easily adjusted by those skilled in the art.
- the aminoethanol represented by the formula [1] is sulfonylamidated with the fluorine-containing alkylsulfonic acid anhydride represented by the general formula [2], whereby the first step of the present invention is performed.
- This is a step of synthesizing a fluorine-containing alkylsulfonylaminoethanol represented by the general formula [3], which is one target compound.
- the scheme of the present invention is shown below. (Wherein, R 2 has the same meaning as described above.)
- the raw material aminoethanol represented by the general formula [1] used in the sulfonylamidation step can be obtained by using a commercially available product or by neutralizing a commercially available hydrochloride thereof with a base.
- R 2 represents a fluorine-containing alkyl group having 1 to 6 carbon atoms.
- the fluorine-containing alkyl group include a fluoromethyl group, a difluoromethyl group, a trifluoromethyl group, a perfluoroethyl group, an n-perfluoropropyl group, and an n-perfluorobutyl group.
- a perfluoroalkyl group such as a trifluoromethyl group, a perfluoroethyl group, an n-perfluoropropyl group, or an n-perfluorobutyl group is preferable, and a trifluoromethyl group is more preferable.
- the sulfonylamidation step since the sulfonylating agent used is an anhydride, as the sulfonylamidation reaction proceeds, one molecule of fluorine-containing sulfonic acid per molecule of fluorine-containing sulfonic acid anhydride Generate. In order to prevent contact between such a free acid and the hydroxyl group of the generated fluorine-containing sulfonylaminoethanol, a situation where the free fluorine-containing sulfonic acid is quickly trapped may be created.
- a base such as triethylamine is effective, but in the first step (sulfonylamidation step) of the production method of the present invention, a base is used in the reaction of aminoethanol with a fluorine-containing alkylsulfonic acid anhydride.
- the reaction proceeds even in the presence of other bases, especially in the absence of other bases. This is because the raw material aminoethanol itself has basicity.
- the optimal aspect regarding the ratio of aminoethanol and a fluorine-containing sulfonic acid anhydride is demonstrated about each case of presence or absence of a base.
- the base plays a role of trapping the acid generated by the reaction.
- bases include trimethylamine, triethylamine, N, N-diethylmethylamine, tripropylamine, tributylamine, pyridine, 2,6-dimethylpyridine, dimethylaminopyridine, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide. At least one selected from the group consisting of is preferably used. Of these, triethylamine is particularly preferred.
- the amount of the base used is 0.2 to 15.0 mol, preferably 0.5 to 10.0 mol, more preferably 1.0 to 3.0 mol, relative to 1.0 mol of aminoethanol as a substrate. preferable. If the amount of the base is less than 0.2 mol relative to the aminoethanol of the substrate, both the selectivity of the reaction and the yield of the target product will be reduced, and if it exceeds 15.0 mol, the amount of the base not involved in the reaction will increase. Is not preferable. When inexpensive triethylamine or the like is used as a solvent, the amount may exceed 15.0 mol.
- the amount of the fluorine-containing alkylsulfonic anhydride used is 0.2 mol to 2.0 mol with respect to 1.0 mol of aminoethanol, and 0.5 mol to 1. mol. 5 mol is preferable, and 0.9 to 1.2 mol is more preferable. If the amount of the fluorine-containing alkylsulfonic anhydride is less than 0.2 mol with respect to 1.0 mol of aminoethanol, both the selectivity of the reaction and the yield of the target product will be reduced, and if it exceeds 2.0 mol, the reaction will not be involved. The fluorine-containing alkyl sulfonic acid anhydride increases, which is not economically preferable from the time of disposal.
- the amount of the fluorine-containing alkylsulfonic acid anhydride is more preferably 0.9 mol to 1.2 mol with respect to 1.0 mol of aminoethanol, In particular, the molar ratio between the two is preferably close to 1: 1.
- aminoethanol is considered not only to be a raw material but also to serve as the above acid trapping agent. Accordingly, the mixing ratio of the raw materials is preferably a composition in which the amount of the fluorine-containing alkylsulfonic acid anhydride is the same or less than that of aminoethanol, and is 0.2 mol with respect to 1.0 mol of aminoethanol. Particularly preferred is .about.0.6 mol.
- the amount of the fluorine-containing alkyl sulfonic anhydride is less than 0.2 mol with respect to 1.0 mol of aminoethanol, the efficiency of the reaction is lowered, and if it exceeds 0.6 mol, not only the efficiency of the acid trap is lowered, but also the reaction Fluorine-containing alkylsulfonic anhydrides that do not participate in the process increase, which is economically undesirable from the point of disposal. Furthermore, it is desirable that the molar ratio of the two is close to 1: 0.5, and at this molar ratio, half of the aminoethanol can trap free sulfonic acid. Under these conditions, the fluorine-containing alkyl sulfone can be trapped. It should be noted that the acid anhydride can be purified with a yield of 80% and a purity of 99% or more (see Example 5).
- reaction temperature is in the range of ⁇ 50 to 50 ° C., preferably ⁇ 30 to 40 ° C., and more preferably 0 ° C. to 30 ° C. Below ⁇ 50 ° C., the reaction rate is very slow and it is not a practical production method. Moreover, since a by-product will produce
- the reaction is allowed to proceed by adding a fluorine-containing alkylsulfonic anhydride to the raw material aminoethanol, but a solvent can be used to improve operability.
- a solvent can be used to improve operability.
- the reaction is carried out in the presence of a base, since the fluorine-containing alkyl sulfonate of the base is produced as a by-product, it is desirable that such a solvent dissolves these by-products.
- Usable solvents are nitrile solvents such as acetonitrile and benzonitrile, sulfoxide solvents such as dimethyl sulfoxide, ether solvents such as diethyl ether, diisopropyl ether, dibutyl ether and tetrahydrofuran, alcohol solvents such as isopropyl alcohol, triethylamine and pyridine. And a basic solvent such as methylene chloride, chloroform and carbon tetrachloride, an aromatic hydrocarbon solvent such as benzene and xylene, pentane and hexane.
- nitrile solvents such as acetonitrile and benzonitrile
- sulfoxide solvents such as dimethyl sulfoxide
- ether solvents such as diethyl ether, diisopropyl ether, dibutyl ether and tetrahydrofuran
- alcohol solvents such as isopropyl alcohol, trieth
- a fluorine-based solvent can be used for this reaction, and 1,1,2,2,3,3,4-heptafluorocyclopentane, trifluoromethylbenzene, 1,3-bis (trimethyl) Fluoromethyl) benzene, 1,4-bis (trifluoromethyl) benzene and the like are preferably used.
- Use of a fluorinated solvent is preferable because the solubility of the raw material and the product is improved.
- the reaction time is not particularly limited, and may be in the range of 0.1 to 72 hours. Since the reaction time varies depending on the substrate and the reaction conditions, the reaction time is determined by an analytical means such as gas chromatography, liquid chromatography, or NMR. It is preferable to follow the progress of the process and set the end point when the fluorine-containing alkylsulfonic anhydride has almost disappeared.
- nitrile solvents such as acetonitrile and benzonitrile
- ether solvents such as diethyl ether, diisopropyl ether, dibutyl ether and tetrahydrofuran
- basic solvents such as triethylamine and pyridine, ethyl acetate, 1,1,2,2 , 3,3,4-heptafluorocyclopentane, trifluoromethylbenzene, 1,3-bis (trifluoromethyl) benzene, 1,4-bis (trifluoromethyl) benzene and the like are preferable. .
- the solvent mentioned above may be used independently and may use 2 or more types as a mixed solvent.
- a mixed solvent for example, mixing at least one solvent of a nitrile solvent such as acetonitrile or benzonitrile and at least one solvent of an ether solvent such as diethyl ether, diisopropyl ether, dibutyl ether, tetrahydrofuran, etc.
- a nitrile solvent such as acetonitrile or benzonitrile
- an ether solvent such as diethyl ether, diisopropyl ether, dibutyl ether, tetrahydrofuran, etc.
- the amount of the solvent used in this reaction is 0.5 to 10 g with respect to 1 g of aminoethanol, preferably 1 to 20 g, more preferably 1 to 3 g.
- the amount of the solvent is less than 0.5 g with respect to 1 g of aminoethanol, the concentration of by-products such as the fluorine-containing alkyl sulfonate of the base precipitated during the reaction is too high, so that the operability is lowered. If it exceeds 10 g, it is not economically preferable from the viewpoint of productivity.
- the reactor for carrying out this reaction is preferably a reactor made of a tetrafluoroethylene resin, a chlorotrifluoroethylene resin, a vinylidene fluoride resin, a PFA resin, glass or the like, or a glass container.
- the fluorine-containing alkylsulfonylaminoethanol represented by the general formula [3] produced by the method of the present invention can be purified by applying a known method.
- an acidic aqueous solution such as an aqueous hydrochloric acid solution or an aqueous sulfuric acid solution can be used.
- a basic aqueous solution such as sodium hydroxide, potassium hydroxide or sodium carbonate, or an aqueous solution containing a salt is added to the reaction system to wash the reaction solution, followed by extraction with an organic solvent such as diisopropyl ether.
- the obtained crude organic substance can be purified by distillation or the like to obtain high-purity fluorine-containing alkylsulfonylaminoethanol.
- the obtained fluorine-containing alkylsulfonylaminoethanol (general formula [3]) is esterified with an ⁇ -substituted acrylate (general formula [4]), and the final target compound, fluoroalkyl
- R 1 is a hydrogen atom, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, fluoromethyl group, difluoromethyl group
- Y is a fluorine atom, a chlorine atom, a bromine atom or a group having the structure shown in the following [4a] Represents one of the following.
- R 2 has the same meaning as above
- R 1 is preferably a hydrogen atom, a methyl group, an ethyl group, an n-propyl group or an isopropyl group, and particularly preferably a methyl group. Among these, it is particularly preferable that R 1 is a methyl group and R 2 is a trifluoromethyl group.
- the ⁇ -substituted acrylic acid derivative used as a reaction raw material for the esterification step can be purchased as a reagent for synthesis.
- the amount of the ⁇ -substituted acrylic acid derivative used for the reaction in the esterification step is 0.8 to 3.0 mol with respect to 1.0 mol of fluorine-containing alkylsulfonylaminoethanol, and 0.9 to 2.0 mol. Is preferable, and 0.9 to 1.5 mol is more preferable. If the amount of the ⁇ -substituted acrylic acid derivative is less than 0.8 mol with respect to 1.0 mol of the fluorinated alkylsulfonylaminoethanol, the yield of the target product is reduced. The number of substituted acrylic acid derivatives increases, which is not economically preferable due to the waste of disposal.
- aromatic hydrocarbon solvents such as benzene, toluene, xylene, halogenated solvents such as methylene chloride, chloroform, carbon tetrachloride, diethyl ether, diisopropyl ether, dibutyl ether, tetrahydrofuran
- aromatic hydrocarbon solvents such as benzene, toluene and xylene, halogens such as methylene chloride, chloroform and carbon tetrachloride.
- a solvating solvent is particularly preferred.
- the amount of the solvent used in this reaction is usually 0.1 to 100 g, preferably 0.1 to 20 g, more preferably 2 to 10 g with respect to 1 g of fluorine-containing alkylsulfonylaminoethanol. If it exceeds 100 g, it is not economically preferable from the viewpoint of productivity.
- the reaction temperature for carrying out the reaction in the second step is 20 to 200 ° C., preferably 40 to 150 ° C., more preferably 30 ° C. to 60 ° C. If it is less than 20 degreeC, reaction rate will be very slow and will not become a practical manufacturing method. On the other hand, if it exceeds 200 ° C., the product fluorine-containing alkylsulfonylaminoethyl ⁇ -substituted acrylates are liable to decompose, which is not preferable.
- the esterification step of the present invention comprises a fluorine-containing sulfonylaminoethanol represented by general formula [3] and an ⁇ -substituted acrylic acid derivative represented by general formula [4] ( ⁇ -substituted acrylic acid anhydride or ⁇ -substituted (Acrylic acid halide) can be carried out in the presence of a base.
- Bases include trimethylamine, triethylamine, N, N-diethylmethylamine, tripropylamine, tributylamine, pyridine, 2,6-dimethylpyridine, dimethylaminopyridine, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide At least one member selected from the group is preferably used. Of these, pyridine, 2,6-dimethylpyridine, triethylamine, and sodium hydroxide are particularly preferable.
- the amount of base used in this step is 0.2 to 2 moles, preferably 0.5 to 1.5 moles per mole of fluorine-containing sulfonylaminoethanol represented by the general formula [3]. 9 to 1.2 mol is more preferable.
- the amount of the base is less than 0.2 mol relative to 1 mol of the fluorine-containing sulfonylaminoethanol represented by the general formula [3] both the selectivity of the reaction and the yield of the target product are lowered. This is economically undesirable because the amount of non-participating base increases.
- additives include general proton acids and Lewis acids, methanesulfonic acid, ethanesulfonic acid, p-toluenesulfonic acid, benzenesulfonic acid, trifluoromethanesulfonic acid, and organic sulfonic acids. Is not particularly limited.
- the amount of the additive used in this reaction is 0.01 to 2 moles, preferably 0.02 to 1.8 moles per mole of fluorine-containing sulfonylaminoethanol represented by the general formula [3]. More preferred is 05 to 0.5 mol.
- the amount of the additive is less than 0.01 mol with respect to 1 mol of the fluorine-containing sulfonylaminoethanol represented by the general formula [3] of the substrate, the conversion rate of the reaction and the yield of the target product are reduced, and the amount exceeds 2 mol. This is economically undesirable because the amount of the additive not involved in the reaction increases.
- Polymerization inhibitors used are hydroquinone, methoquinone, 2,5-di-t-butylhydroquinone, 1,2,4-trihydroxybenzene, 2,5-bistetramethylbutylhydroquinone, leucoquinizarin, nonflex F, nonflex H Nonflex DCD, Nonflex MBP, Ozonon 35, Phenothiazine, 2-methoxyphenothiazine, Tetraethylthiuram disulfide, 1,1-diphenyl-2-picrylhydrazyl, 1,1-diphenyl-2-picrylhydrazine, Q- 1300 and at least one compound selected from Q-1301.
- the above polymerization inhibitors are commercially available products and can be easily obtained.
- the amount of the polymerization inhibitor used in this step is 0.00001 to 0.1 mol with respect to the fluorine-containing sulfonylaminoethanol represented by the general formula [3] of the raw material, and 0.00001 to 0.05 mol.
- 0.0001 to 0.01 mol is more preferable.
- the reactor for the esterification reaction is preferably a reactor made of tetrafluoroethylene resin, chlorotrifluoroethylene resin, vinylidene fluoride resin, PFA resin, glass or the like, a glass container, or stainless steel.
- the method for carrying out this reaction is not limited, but details of an example of a desirable mode will be described.
- an ⁇ -substituted acrylic acid derivative ⁇ -substituted acrylic acid halide or ⁇ -substituted acrylic anhydride
- a polymerization inhibitor ⁇ -substituted acrylic acid derivative ( ⁇ -substituted acrylic acid halide or ⁇ -substituted acrylic anhydride) and a polymerization inhibitor are added, and the reaction is allowed to proceed by adjusting the temperature while stirring. It is preferable to monitor the consumption of the raw material by sampling or the like, confirm that the reaction is completed, and cool the reaction solution.
- the fluorine alkylsulfonylaminoethyl ⁇ -substituted acrylates represented by the general formula [5] produced by the method of the present invention are purified by applying a known method. For example, washing, concentration, distillation, Extraction, recrystallization, filtration, column chromatography, etc. can be used, and two or more methods may be used in combination.
- the organic layer was washed 3 times with 35 g of a saturated aqueous sodium hydrogen carbonate solution, and then the organic layer was washed with 35 g of saturated brine. All aqueous layers were combined and extracted with 145 g of diisopropyl ether. The combined organic layers were dried over magnesium sulfate, and then the solvent was distilled off. As a result, 38.8 g of crude purified 2- (trifluoromethyl) sulfonylaminoethanol was obtained as a colorless transparent liquid. The crude yield was 80.4% and the GC purity was 86.1%.
- the crude product was subjected to flash distillation mash (0.3 kPa / 105-106 ° C.) to obtain 26.1 g of 2- (trifluoromethyl) sulfonylaminoethanol having a GC purity of 97.0%.
- the yield was 54.1%.
- a 3 L four-necked flask equipped with a thermometer and a reflux condenser was charged with 150 g of acetonitrile, 750 g of diisopropyl ether, and 300 g (4.91 mol) of ethanolamine and cooled to 0 ° C. with stirring. After stirring for 30 minutes, 693 g (2.45 mol) of trifluoromethanesulfonic anhydride was added dropwise over 3 hours. After completion of dropping, the temperature was lowered to about 10 ° C. over 20 minutes with stirring. After completion of stirring, 889 g of a 10% hydrochloric acid aqueous solution was added and stirred for a while, followed by liquid separation.
- the aqueous layer was extracted with 300 g of diisopropyl ether, and the organic layers were combined and washed with 300 g of water.
- the solvent was distilled off, 424 g of crude purified 2- (trifluoromethyl) sulfonylaminoethanol was obtained as a light pink liquid.
- This crude product was flash distilled to obtain 306 g of 2- (trifluoromethyl) sulfonylaminoethanol. The yield was 65%.
- a 3 L four-necked flask equipped with a thermometer and a reflux condenser was charged with 100 g of acetonitrile, 500 g of diisopropyl ether and 300 g (4.91 mol) of ethanolamine and cooled to 0 ° C. with stirring. After stirring for 30 minutes, 693 g (2.45 mol) of trifluoromethanesulfonic anhydride was added dropwise over 3 hours. After completion of dropping, the temperature was lowered to about 10 ° C. over 20 minutes with stirring. After completion of the stirring, 613 g of a 16% aqueous sodium hydroxide solution was added and stirred for a while.
Abstract
Description
(a)エタノールアミンの塩酸塩をα―置換アクリル酸誘導体でエステル化した後、含フッ素アルキルスルホン酸誘導体を用いてスルホニルアミド化する方法。
(b)エタノールアミンを含フッ素アルキルスルホン酸誘導体でスルホニルアミド化した後、α-置換アクリル酸誘導体を用いてエステル化する方法。
式[1]で表されるアミノエタノール
反応を塩基の非存在下、アミノエタノール1モルに対して含フッ素アルキルスルホン酸無水物0.2モル~0.6モルの組成比で行うことを特徴とする発明1に記載の製造方法。
反応を塩基の存在下で行うことを特徴とする発明1に記載の製造方法。
塩基が、エタノールアミン、トリメチルアミン、トリエチルアミン、N,N-ジエチルメチルアミン、トリプロピルアミン、トリブチルアミン、ピリジン、2,6-ジメチルピリジン、ジメチルアミノピリジン、炭酸ナトリウム、炭酸カリウム、水酸化ナトリウム、水酸化カリウムからなる群から選ばれる少なくとも一種の塩基である、発明3に記載の製造方法。
反応を溶媒存在下で行うことを特徴とする発明1乃至発明4の何れか1つに記載の製造方法。
溶媒が、アセトニトリル、ベンゾニトリル、酢酸エチル、イソプロピルアルコール、ジメチルイミダゾリジノン、ジメチルスルホキシド、ジエチルエーテル、ジイソプロピルエーテル、ジブチルエーテル、テトラヒドロフラン、1,1,2,2,3,3,4-ヘプタフルオロシクロペンタン、トリフルオロメチルベンゼン、1,3-ビス(トリフルオロメチル)ベンゼン、1,4-ビス(トリフルオロメチル)ベンゼンからなる群より選ばれる少なく一種の溶媒である、発明5に記載の製造方法。
反応を-50~50℃で行うことを特徴とする発明1乃至発明6の何れか1つに記載の製造方法。
発明1乃至発明7の何れか1つに記載の方法で得られた一般式[3]で表される含フッ素アルキルスルホニルアミノエタノール類を一般式[4]で表されるα-置換アクリル酸誘導体
の含フッ素アルキル基を表す。)の製造方法。
以下、実施例により本発明を詳細に説明するがこれらの実施態様に限られない。
19F NMR(溶媒:CDCl3,基準物質:CFCl3);δ-77.94(s,1F)
Claims (8)
- 反応を塩基の非存在下、アミノエタノール1モルに対して含フッ素アルキルスルホン酸無水物0.2モル~0.6モルの組成比で行うことを特徴とする請求項1に記載の製造方法。
- 反応を塩基の存在下で行うことを特徴とする、請求項1に記載の製造方法。
- 塩基が、アミノエタノール、トリメチルアミン、トリエチルアミン、N,N-ジエチルメチルアミン、トリプロピルアミン、トリブチルアミン、ピリジン、2,6-ジメチルピリジン、ジメチルアミノピリジン、炭酸ナトリウム、炭酸カリウム、水酸化ナトリウム、水酸化カリウムからなる群から選ばれる少なくとも一種の塩基である、請求項3に記載の製造方法。
- 反応を溶媒存在下で行うことを特徴とする請求項1乃至請求項4の何れか1項に記載の製造方法。
- 溶媒が、アセトニトリル、酢酸エチル、イソプロピルアルコール、ベンゾニトリル、ジメチルイミダゾリジノン、ジメチルスルホキシド、ジエチルエーテル、ジイソプロピルエーテル、ジブチルエーテル、テトラヒドロフラン、1,1,2,2,3,3,4-ヘプタフルオロシクロペンタン、トリフルオロメチルベンゼン、1,3-ビス(トリフルオロメチル)ベンゼン、1,4-ビス(トリフルオロメチル)ベンゼンからなる群より選ばれる少なく一種である、請求項5に記載の製造方法。
- 反応を-50~50℃で行うことを特徴とする請求項1乃至請求項6の何れか1項に記載の製造方法。
- 請求項1乃至請求項7の何れか1項に記載の方法で得られた一般式[3]で表される含フッ素アルキルスルホニルアミノエタノール類を、一般式[4]で表されるα-置換アクリル酸誘導体
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KR1020137011470A KR101557808B1 (ko) | 2008-12-26 | 2009-12-22 | 함불소알킬술포닐아미노에틸 α-치환 아크릴레이트류의 제조 방법 |
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GB1298291A (en) * | 1969-02-11 | 1972-11-29 | Ugine Kuhlmann | New polyfluorinated sulphamido alcohols |
JP2005281301A (ja) * | 2004-03-02 | 2005-10-13 | Central Glass Co Ltd | 含フッ素アルキルスルホニルアミノエチルα−置換アクリレート類の製造方法 |
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US6177228B1 (en) | 1997-09-12 | 2001-01-23 | International Business Machines Corporation | Photoresist composition and process for its use |
US6165678A (en) * | 1997-09-12 | 2000-12-26 | International Business Machines Corporation | Lithographic photoresist composition and process for its use in the manufacture of integrated circuits |
US6949325B2 (en) * | 2003-09-16 | 2005-09-27 | International Business Machines Corporation | Negative resist composition with fluorosulfonamide-containing polymer |
US7115771B2 (en) * | 2004-03-02 | 2006-10-03 | Central Glass Company, Limited | Process for producing fluorine-containing alkylsulfonylaminoethyl α-substituted acrylate |
JP5076682B2 (ja) * | 2006-07-26 | 2012-11-21 | セントラル硝子株式会社 | N−(ビシクロ[2,2,1]ヘプト−5−エン−2−イルメチル)−1,1,1−トリフルオロメタンスルホンアミドの製造方法 |
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GB1298291A (en) * | 1969-02-11 | 1972-11-29 | Ugine Kuhlmann | New polyfluorinated sulphamido alcohols |
JP2005281301A (ja) * | 2004-03-02 | 2005-10-13 | Central Glass Co Ltd | 含フッ素アルキルスルホニルアミノエチルα−置換アクリレート類の製造方法 |
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US20110237824A1 (en) | 2011-09-29 |
KR20130049216A (ko) | 2013-05-13 |
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