WO2014038489A1 - 不飽和酸及び/又は不飽和酸エステルの製造方法 - Google Patents
不飽和酸及び/又は不飽和酸エステルの製造方法 Download PDFInfo
- Publication number
- WO2014038489A1 WO2014038489A1 PCT/JP2013/073410 JP2013073410W WO2014038489A1 WO 2014038489 A1 WO2014038489 A1 WO 2014038489A1 JP 2013073410 W JP2013073410 W JP 2013073410W WO 2014038489 A1 WO2014038489 A1 WO 2014038489A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- atom
- ion
- compound
- mol
- deuterium atom
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/093—Preparation of carboxylic acids or their salts, halides or anhydrides by hydrolysis of —CX3 groups, X being halogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/377—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/317—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/39—Preparation of carboxylic acid esters by oxidation of groups which are precursors for the acid moiety of the ester
- C07C67/40—Preparation of carboxylic acid esters by oxidation of groups which are precursors for the acid moiety of the ester by oxidation of primary alcohols
Definitions
- the present invention relates to a method for producing an unsaturated acid and / or unsaturated acid ester, and more particularly, to a method for producing an unsaturated acid and / or unsaturated acid ester from trihaloalcohol under a predetermined catalyst.
- An unsaturated acid and / or an ester thereof for example, methacrylic acid (MAA) and / or methyl methacrylate (MMA) is prepared by using acetone cyanohydrin for producing methacrylic acid and / or methyl methacrylate from acetone and hydrogen cyanide (hydrogen cyanide).
- the method (ACH method) is widely used industrially.
- hydrocyanic acid is highly toxic and its use is not preferred.
- a method for obtaining methacrylic acid or a methacrylic acid ester from 1,1,1-trihalo-2-methyl-2-propanol is also known.
- a method of obtaining 2-methyl-2-methylpropanoic acid from 1,1,1-trichloro-2-methyl-2-propanol, obtaining its methyl ester, and further obtaining methyl methacrylate by dealcoholization Is known (Non-Patent Document 1).
- this method in order to obtain 2-methoxy-2-methylpropanoic acid, it is necessary to use a basic compound that is at least 3 moles of the starting alcohol.
- Patent Document 1 As another method for producing methacrylic acid, a method of heating 2-chloro-2-methylpropanoic acid from 250 ° C. to 600 ° C. in the presence of a catalyst such as calcium chloride is known (Patent Document 1).
- a catalyst such as calcium chloride
- Patent Document 2 As a method for producing methyl methacrylate, methyl 2-chloro-2-methylpropanoate is used as a raw material and heated from 480 ° C. to 550 ° C. without catalyst, and then in the presence of a dehydrohalogenation catalyst such as metal chloride.
- a method of heating to 250 to 350 ° C. is known (Patent Document 2).
- the 2-chloro-2-methylpropanoic acid and methyl 2-chloro-2-methylpropanoate are synthesized by, for example, reacting 1,1,1-tribromo-2-methyl-2-propanol with potassium hydroxide. It can be made according to Method IV (Non-patent Document 2) for obtaining bromo-2-methylpropanoic acid.
- Method IV Non-patent Document 2 for obtaining bromo-2-methylpropanoic acid.
- the obtained halogen salt is difficult to use effectively.
- an object of the present invention is to provide a method capable of producing an unsaturated acid and / or an unsaturated acid ester on an industrial scale without using a large amount of a chemical such as a basic compound. It is another object of the present invention to provide a method capable of recovering a halogen content in a form that is easy to use effectively.
- the present invention is a method for producing an unsaturated acid and / or unsaturated acid ester described in the following [1] to [10].
- the compound (1) represented by the following formula (1) is reacted at a temperature of 0 ° C. to 350 ° C. in the presence of a Bronsted acid catalyst and / or a Lewis acid catalyst.
- R 1 , R 2 and R 4 are each independently an alkyl group which may be substituted with a hydrogen atom, a deuterium atom, or a halogen atom and / or a deuterium atom having 1 to 3 carbon atoms.
- Each of R 3 and R 5 is, independently of each other, a hydrogen atom or a deuterium atom
- R 6 is a hydrogen atom, a deuterium atom, or a halogen atom and / or a deuterium atom having 1 to 8 carbon atoms.
- X is a chlorine atom, a fluorine atom, a bromine atom or an iodine atom.
- Step A is an alcohol which has 1 to 8 carbon atoms and may be substituted with a halogen atom and / or a deuterium atom, except for the compound (1) represented by the formula (1), and / or Alternatively, the production method according to any one of the above [1] to [5], which comprises a step of adding water. [7] The above [1] to [6], further comprising a step B of preparing the compound (3) represented by the following formula (3) from the product of the step A containing the compound (2) after the step A The manufacturing method as described in any one of these.
- R 1 , R 2 , R 4 and R 6 are as described above.
- R 1 , R 2 , R 4 and R 6 are each independently a hydrogen atom, a deuterium atom, or an alkyl group having 1 to 3 carbon atoms which may be substituted with a deuterium atom
- R 1 and R 2 are each independently a hydrogen atom or a deuterium atom
- R 4 and R 6 are a methyl group which may be substituted with a deuterium atom.
- an unsaturated acid and / or an unsaturated acid ester can be obtained on an industrial scale in the presence of a reusable catalyst in a small amount. Furthermore, the halogen content can be obtained as a halogen acid that is easy to use effectively.
- the compound (1) represented by the following formula (1) is reacted at a temperature of 0 ° C. to 350 ° C. in the presence of a Bronsted acid catalyst and / or a Lewis acid catalyst.
- Step A for preparing compound (2) represented by 2) is included.
- R 1 , R 2 and R 4 are each independently substituted with a hydrogen atom, a deuterium atom, or a halogen atom and / or a deuterium atom having 1 to 3 carbon atoms. It may be an alkyl group. Examples of the alkyl group include a methyl group, an ethyl group, a propyl group, and a group in which at least one hydrogen atom of these groups is substituted with a halogen atom and / or a deuterium atom.
- R 1 , R 2 , and R 4 are each independently a hydrogen atom, a deuterium atom, or an alkyl group having 1 to 3 carbon atoms that may be substituted with a deuterium atom.
- R 3 is a hydrogen atom or a deuterium atom. More preferably, R 1 to R 3 are each independently a hydrogen atom or a deuterium atom, and R 4 is a methyl group in which any hydrogen atom may be a deuterium atom.
- R 5 is a hydrogen atom or a deuterium atom.
- R 6 is a hydrogen atom, a deuterium atom, or an alkyl group or an aryl group which may be substituted with a halogen atom and / or a deuterium atom having 1 to 8 carbon atoms.
- R 6 include butyl, pentyl, hexyl, heptyl, octyl, phenyl, benzyl, tolyl, and hydrogen atoms of these groups in addition to those described above for R 1 to R 4 And a group in which at least one of is substituted with a halogen atom and / or a deuterium atom.
- R 6 is a hydrogen atom, a deuterium atom, or an alkyl group having 1 to 3 carbon atoms which may be substituted with a deuterium atom, more preferably a methyl group which may be substituted with a deuterium atom. It is.
- X is a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom, preferably a chlorine atom or a bromine atom.
- the compound (1) may be in the form of its hydrate, an alcohol adduct such as methanol or ethanol.
- M is a hydrogen ion or a metal or metalloid cation selected from the group consisting of Group 2 and Group 4-14 elements of the periodic table
- Y is a halide ion, sulfate ion, nitrate ion.
- the valence of the cation M ⁇ n the valence of the anion Y ⁇ m.
- M is hydrogen ion, boron ion, or magnesium, aluminum, calcium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, gallium, germanium, strontium, zirconium, niobium, molybdenum, ruthenium, rhodium. More preferable is a metal cation selected from the group consisting of palladium, silver, cadmium, indium, tin, antimony, barium, hafnium, tantalum, tungsten, rhenium, osmium, iridium, platinum, gold, mercury, thallium, and lead, Particularly preferred are metal cations selected from the group consisting of iron, zinc, and copper.
- Y is preferably a halide ion, an oxide ion or a sulfide ion, particularly preferably a fluoride ion, a chloride ion or a bromide ion.
- M n Y m include boron trichloride, iron chloride, copper chloride, zinc chloride, tin chloride, lead chloride, boron trifluoride, iron fluoride, copper fluoride, zinc fluoride, tin fluoride, Lead fluoride, iron bromide, copper bromide, zinc bromide, tin bromide, lead bromide, iron oxide, copper oxide, zinc oxide, tin oxide, lead oxide, iron sulfide, copper sulfide, zinc sulfide, tin sulfide And lead sulfide.
- a solid acid may be used as the Lewis acid catalyst.
- the solid acid examples include activated clay, acidic clay, zeolite, heteropoly acid, ion exchange resin and the like.
- the activated clay is a compound having a porous structure, which is obtained by treating a naturally occurring acidic clay (montmorillonite clay) with a mineral acid such as sulfuric acid. Both have SiO 2 , Al 2 O 3 , Fe 2 O 3 , CaO, MgO, etc. as general chemical components.
- the heteropolyacid is generally a complex oxide acid composed of two or more different oxide complexes, and a part or all of these protons replaced with other cations.
- Heteropolyacids include, for example, oxyacid ions of elements such as phosphorus, arsenic, tin, silicon, titanium, and zirconium (eg, phosphoric acid and silicic acid) and oxyacid ions of elements such as molybdenum, tungsten, vanadium, niobium, and tantalum. (Vanadic acid, molybdic acid, tungstic acid), and various heteropolyacids are possible by combinations thereof.
- the element of oxygen acid constituting the heteropolyacid is not particularly limited, but for example, copper, beryllium, boron, aluminum, carbon, silicon, germanium, tin, titanium, zirconium, cerium, thorium, nitrogen, phosphorus, arsenic , Antimony, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, uranium, selenium, tellurium, manganese, iodine, iron, cobalt, nickel, rhodium, osmium, iridium, platinum and the like.
- the amount of the catalyst used is preferably 0.001 mol to 1 mol, more preferably 0.03 mol to 0.3 mol, relative to 1 mol of the compound (1). 0.04 to 0.25 mol is most preferable. If the amount used is less than the lower limit, it is not preferable from the viewpoint of productivity, and if it exceeds 1 mol, it is not preferable from the viewpoint of volume efficiency.
- the catalyst can be used by being supported on a carrier as required.
- carrier is not specifically limited, A metal, a metalloid oxide, those salts, inorganic carbon, etc. can be used, A silica, an alumina, a titania, a zirconia, a zeolite, activated carbon etc. are illustrated.
- the catalyst it is preferable to reuse at least part of the catalyst.
- the catalyst When the catalyst is deactivated, it is preferable to regenerate and use part or all of the catalyst.
- the regeneration method include a method of heating in an inert gas atmosphere or an atmosphere of a gas containing oxygen, a method of treating the catalyst with a hydrogen halide gas or an aqueous solution of hydrogen halide, a combination thereof, and the like.
- the reaction temperature can be appropriately adjusted according to the compound (1) and the catalyst, but generally 0 ° C to 350 ° C is preferable, 50 ° C to 300 ° C is more preferable, and 50 ° C to 250 ° C is particularly preferable. . If the temperature is too low, it is not preferable from the viewpoint of productivity, and if the temperature is too high, decomposition of raw materials and products and an increase in side reactions occur, which is not preferable.
- the reaction pressure is preferably adjusted as appropriate according to the vapor pressure of the compound (1), solvent, and other gases, and may be under pressure or under reduced pressure.
- the absolute pressure is more preferably 0 MPa to 10 MPa, more preferably 0.05 MPa to 2 MPa, and most preferably 0.1 MPa to 1 MPa.
- the reaction method may be either liquid phase or gas phase, and may be either batch type or continuous type.
- a compound or gas that does not chemically react with the raw material and the reaction product can be used as the solvent or dilution gas.
- Examples of the solvent include pentane, hexane, heptane, petroleum ether, dimethyl ether, diethyl ether, tetrahydrofuran, 1,2-dimethoxyethane, dichloromethane, chloroform, carbon tetrachloride, dichloroethane, acetic acid, benzoic acid, acetic anhydride, ethyl acetate, Acetone, 2-butanone, acetonitrile, dimethylformamide, dimethylacetamide, dimethyl sulfoxide, benzene, toluene, chlorobenzene, dichlorobenzene, benzonitrile, nitromethane, nitrobenzene, and mixtures thereof.
- Examples of the dilution gas include nitrogen gas, helium gas, argon gas, and mixtures thereof.
- the amount of the solvent or dilution gas used is preferably in the range where the concentration of the compound (1) is 5% by weight or more, and more preferably in the range where it is 10% by weight or more. If the concentration of the compound (1) is too low, it is not preferable from the viewpoint of productivity.
- step A the alcohol having 1 to 8 carbon atoms and optionally substituted with a halogen atom and / or a deuterium atom (excluding the compound (1) represented by the above formula (1)) and And / or a step of adding water (hereinafter referred to as “alcohol or the like”).
- the addition may be performed at any time, and alcohol or the like may be present from the beginning of Step A.
- the presence of these during the reaction makes it possible to obtain the esters of compound (2) or the carboxylic acid efficiently in the same reactor or by reducing the time required for successive reactions.
- the alcohol examples include methanol, ethanol, butanol, isobutyl alcohol, tertiary butyl alcohol, pentanol, hexanol, cyclohexanol, heptanol, 2-ethylhexanol, phenol, benzyl alcohol and the like, and hydrogen atoms in these molecules.
- the thing by which at least one part is substituted by the halogen atom and / or the deuterium atom is mentioned.
- halogen-substituted alcohol examples include 2,2,2-trichloroethanol, 2,2,3,3-tetrafluoropropanol, 1,1,1,3,3,3-hexafluoro-2-propanol, And fluoroalkyl alcohols represented by the formula C n F 2n + 1 (CH 2 ) m OH (n is an integer of 1 to 8, m is an integer of 1 to 3).
- fluoroalkyl alcohols represented by the formula C n F 2n + 1 (CH 2 ) m OH (n is an integer of 1 to 8, m is an integer of 1 to 3).
- C n F 2n + 1 (CH 2 ) m OH examples include CF 3 CH 2 OH, CF 3 CF 2 CH 2 OH, CF 3 CF 2 CF 2 CH 2 OH, and CF 3 CF 2 CH 2 CH 2 OH.
- CF 3 (CF 2) 3 CH 2 CH 2 OH, CF 3 (CF 2) 5 CH 2 CH 2 OH, CF 3 (CF 2) 7 CH 2 CH 2 OH, CF 3 CF 2 (CH 2) 3 OH CF 3 (CF 2 ) 3 (CH 2 ) 3 OH, CF 3 (CF 2 ) 5 (CH 2 ) 3 OH, and the like.
- deuterium-substituted alcohol examples include methanol and ethanol in which at least a part of the hydrogen atoms are substituted with deuterium atoms.
- methanol, ethanol and / or those in which at least a part of these hydrogens are substituted with halogen atoms and / or deuterium atoms are used, and methanol is most preferable.
- the amount of alcohol or the like to be added is preferably 0.5 to 20 mol, more preferably 1 to 10 mol, particularly preferably 1 to 5 mol, relative to 1 mol of compound (1). If the added amount of alcohol or the like is less than the lower limit, the conversion rate may not be sufficiently high. On the other hand, when the addition amount of alcohol or the like exceeds the upper limit, the volumetric efficiency is lowered and the productivity is lowered. In addition, you may use alcohol etc. simultaneously with the said solvent or dilution gas.
- step A varies depending on the catalyst, temperature, and the like, but is preferably 10 minutes to 12 hours when the reaction is performed in a batch system. Step A is preferably carried out while confirming the production of compound (2) by gas chromatography or the like and monitoring the progress of the reaction.
- the space velocity is preferably 1 to 500,000 h ⁇ 1 , more preferably 100 to 50000 h ⁇ 1 , most preferably 100 to 10000 h ⁇ 1 .
- the space velocity referred to here is the weight space velocity per catalyst weight, which is a value obtained by dividing the flow rate (kg / h) of the compound (1) by the weight (kg) of the catalyst including the support.
- the reciprocal of the space velocity is called contact time or residence time.
- step A in addition to compound (2), compound (3) can be produced. That is, the product obtained in step A can be a mixture containing compound (2) and compound (3). Accordingly, the target compound (3) can be obtained in one step of the step A, but preferably the following step B is performed.
- the method of the present invention includes the step B of preparing the unsaturated compound (3) represented by the following formula (3) from the product of the step A including the compound (2).
- R 1 , R 2 , R 4 and R 6 are as defined above for compounds (1) and (2).
- Step B can be performed by an equivalent reaction between the compound (2) and various basic compounds, by a catalytic reaction, or by irradiation with light, ultrasonic waves, or microwaves.
- the basic compound metal hydroxides, metal oxides, metal carbonates, metal alkoxides, metal amides, and amines are preferable because they are easily available.
- Metal hydroxides, metal oxides, metal carbonates, metals Alkoxides and amines are more preferred.
- lithium, sodium, potassium, calcium, and magnesium are preferable from a viewpoint of economical efficiency, and sodium, potassium, and calcium are more preferable.
- the alcohol that forms the metal alkoxide is preferably a linear or branched alcohol having 1 to 8 carbon atoms and optionally containing a halogen atom, or phenol, and a linear or branched alcohol having 1 to 4 carbon atoms. More preferred.
- the used metal alkoxide becomes an alcohol and a metal halide by reaction with the compound (2), but the alcohol is regenerated into a metal alkoxide by reaction with a metal hydroxide, metal oxide, or metal carbonate. Can be used again.
- Examples of the basic compound include sodium hydroxide, potassium hydroxide, calcium hydroxide, calcium oxide, calcium carbonate, sodium methoxide, potassium methoxide, sodium ethoxide, potassium ethoxide, sodium propoxide, potassium propoxide.
- the amine is preferably a tertiary amine, more preferably triethylamine, trimethylamine, diisopropylethylamine, pyridine, tetramethylethylenediamine, diazabicycloundecene, diazabicyclononene, or a basic ion exchange resin.
- These amines are converted into, for example, salts with hydrogen halides by reaction with the compound (2), and the salts are converted into amines by reaction with metal hydroxides, metal oxides, metal carbonates and / or aqueous solutions thereof. And can be reused because it can be converted to a metal halide.
- the reaction method may be either liquid phase or gas phase, and may be either batch type or continuous type.
- various compounds or gases can be used as a solvent or a diluting gas from the viewpoint of handling raw materials and controlling reaction heat.
- the solvent or diluent gas those described with respect to Step A can be used, and if the solvent, water, or alcohol used in Step A remains, use them as the solvent or diluent gas. You can also.
- the reaction temperature can be changed depending on the catalyst used, but in general, 0 ° C to 600 ° C is preferable, and 150 ° C to 550 ° C is more preferable. If the temperature is too low, it is not preferable from the viewpoint of productivity, and if the temperature is too high, decomposition of raw materials and products and an increase in side reactions occur, which is not preferable.
- the reaction pressure is preferably adjusted as appropriate according to the vapor pressure of the compound (2), solvent, and other gases, and may be under pressure or under reduced pressure.
- the absolute pressure is more preferably 0 MPa to 10 MPa, more preferably 0.05 MPa to 2 MPa, and most preferably 0.1 MPa to 1 MPa.
- Step B may be performed in a reactor different from Step A or in the same reactor.
- R 1 to R 3 of the compound (2) are hydrogen or deuterium
- HX or DX is generated simultaneously with the compound (3) in the step B. Therefore, it is preferable that the reaction apparatus for performing the step B can withstand these.
- a reaction vessel made of mild steel, stainless steel, nickel, Inconel, Hastelloy, or glass, or a fluororesin-lined reaction vessel can be used. .
- HX or HD can be used for various applications.
- it is a raw material for vinyl halides, halogenated methanes, other alkyl halides, aryl halides, halogen gases, and metal halides.
- the halogenated methane and halogen gas thus obtained can be used as a raw material for trihalomethane, which is a raw material for compound (1).
- the method of the present invention includes a step of preparing compound (1) before step A.
- a preparation method for example, a method in which a ketone or aldehyde and trihalomethane are reacted in the presence of a basic compound (Japanese Unexamined Patent Publication No. 49-82611, US Pat. No. 2,462,389, Journal of Organic Chemistry 2000, 65). , 7211-7212), a method of electrochemically reacting a ketone and carbon tetrachloride (Tetrahedron Letters, 1986, 27 (27), 3129-32.), A method of reacting a trihaloacetaldehyde or trihaloacetone with an aromatic compound. (J. Org. Chem. 2000, 65, 1597-1599, Japanese Patent No. 3883354).
- R 1 to R 3 of the compound (1) are independently of each other hydrogen or deuterium, and R 4 and R 6 are methyl groups that may be substituted with deuterium atoms
- Deuterated halogenoforms particularly deuterated chloroform, are more readily available than deuterated cyanide and are suitable as raw materials for deuterated unsaturated acid esters.
- a polymer using deuterated MMA can be used as an optical fiber that can be used in a large-capacity high-speed transmission system or the like.
- the method of the present invention preferably further includes a step of purifying the compound (3) obtained in Step B.
- the purification method include distillation, sublimation, crystallization, washing with a liquid, filtration, and a combination thereof, and it is preferable to perform purification including at least a crystallization or distillation step. More preferably.
- Distillation can be carried out by a known method, and as a distillation column, a general distillation column such as a sieve tray, dual tray, bubble bell tray, sulzer packing, techno pack, mela pack, Raschig ring, pole ring, cascade mini ring, etc. It may be a distillation column that accommodates it. Moreover, these distillation systems can also be used in combination as appropriate.
- a general distillation column such as a sieve tray, dual tray, bubble bell tray, sulzer packing, techno pack, mela pack, Raschig ring, pole ring, cascade mini ring, etc. It may be a distillation column that accommodates it.
- these distillation systems can also be used in combination as appropriate.
- a polymerization inhibitor may be added as appropriate.
- the polymerization inhibitor include hydroquinone (HQ), hydroquinone monomethyl ether (MEHQ), phenothiazine (PTZ), hindered amine radical scavenging compounds, or catechol, such as tertiary butyl catechol or ditertiary butyl catechol.
- HQ hydroquinone
- MEHQ hydroquinone monomethyl ether
- PTZ phenothiazine
- catechol such as tertiary butyl catechol or ditertiary butyl catechol.
- the presence of an oxygen-containing gas is also effective in suppressing polymerization.
- the metal compound containing copper will also suppress superposition
- the temperature and pressure in the distillation operation may be the same as those employed in the distillation of ordinary unsaturated acids or esters thereof.
- a temperature not exceeding 80 ° C. is selected as the temperature, and the vapor pressure is determined in accordance with the setting of the temperature.
- various amines and other compounds may be used, or treatment may be performed with activated carbon, alumina, a resin adsorbent, or the like. Crystallization is also an effective method for reducing impurities.
- Filtration is effective for removing a trace amount of a polymer unintentionally produced during operations such as reaction and distillation. Filtration can be performed using a strainer, a filter centrifugal filter or the like.
- the compound (3) when it is methyl methacrylate, it may be obtained as a mixture with methanol, but these two compounds are known to form an azeotrope.
- a method of performing distillation using an azeotropic solvent or recovering methyl methacrylate and methanol by a method of separation using layer separation is known (Japanese Patent Laid-Open No. Hei 11). -124347).
- the polymerization reaction of the compound (3) becomes easy, and it is possible to produce a polymer material that is excellent in heat resistance and transparency and has no coloring.
- the method of the present invention may include concentration, distillation, sublimation, crystallization, washing with liquid, filtration, and other purification steps between the above-described steps.
- the obtained compound (2) or (3) can be converted to other esters or carboxylic acids by a known method.
- a method includes a method of heating water and / or alcohol and compound (2) or (3) in the presence of a catalytic amount of an acid or a base.
- GC gas chromatography
- GC mass spectrometry is referred to as GC-MS.
- the yield means an isolated yield unless otherwise specified.
- the yield obtained from the peak area ratio of the NMR spectrum is referred to as NMR yield.
- the purity obtained from the GC peak area ratio is referred to as GC purity.
- the pressure is a gauge pressure unless otherwise specified. Reactions dealing with oxygen or moisture sensitive compounds were carried out under a nitrogen stream.
- Example 3 In the same manner as in Example 3, a 12.1 wt% nitrobenzene solution of 1,1,1-trichloro-2-methyl-2-propanol was obtained. 999.92 g of the solution (120 g (0.68 mol) of 1,1,1-trichloro-2-methyl-2-propanol) and 99.51 g (0.68 mol of zinc chloride, 1 mol of raw alcohol) 1 mol), and the same procedure as in Example 2 was conducted except that the reaction time was 6 hours. At this time, when the exhaust gas from the reactor was absorbed with an aqueous sodium hydroxide solution and titrated, it was found that 0.638 mol of hydrochloric acid was generated. The obtained reaction crude liquid was filtered by suction filtration, mixed with 37.37 g of methanol, and heated at 60 ° C. for 5 hours.
- reaction crude liquid was analyzed by gas chromatography.
- the conversion of methyl 2-chloro-2-methylpropanoate was 68.8%, and the yield of methyl methacrylate was 13.6%. I understood.
- methyl 3-methoxy-2-methylpropanoate was obtained in a yield of 18.0%.
- 1,1,1-trichloro-2-methyl-2-propanol hemihydrate and 1,2-dichloroethane are mixed and dried with molecular sieves 4A to obtain 1,1,1-trichloro-2-
- a 1,2-dichloroethane solution containing 28% by weight of methyl-2-propanol was obtained.
- 1,1,1-trichloro-2-methyl-2-propanol hemihydrate and 1,2-dichloroethane are mixed and dried with molecular sieves 4A to obtain 1,1,1-trichloro-2-
- a 1,2-dichloroethane solution containing 28% by weight of methyl-2-propanol was obtained.
- 50.1 g of the solution (14.0 g of 1,1,1-trichloro-2-methyl-2-propanol (0.079 mol))
- 16.0 g (0.164 mol) of sulfuric acid were mixed under a nitrogen stream and reacted for 1 hour.
- the liquid after completion of the reaction was separated into two layers, and 43.6 g as an upper layer and 16.3 g as a lower layer were recovered.
- the upper layer was 36.1 g (0.365 mol) of 1,2-dichloroethane, 0.053 mol of 2-chloro-2-methylpropanoic acid chloride, 2-chloro-2-methylpropanoic acid sulfuric anhydride It was confirmed that the lower layer contained 0.010 mol of 2-chloro-2-methylpropanoic acid sulfuric anhydride.
- production of the acidic gas equivalent to 0.078 mol was confirmed by titration of sodium hydroxide aqueous solution. This is 2.8 g in terms of hydrogen chloride, which corresponds to a yield of 99% based on the raw material alcohol used.
- Example 11 Using the same apparatus as in Example 11, 2.8 g (0.087 mol) of methanol was added to the upper layer liquid obtained in Example 11, and reacted at room temperature for 4 hours. NMR analysis of the resulting liquid confirmed the formation of 0.060 mol of methyl 2-chloro-2-methylpropanoate. This corresponds to a yield of 76% based on the raw material alcohol used in the reaction in Example 11. Moreover, generation
- the target compound could be obtained with a catalyst amount of 0.03 to 1 mol with respect to 1 mol of the raw material alcohol. Further, chlorine in the raw material alcohol could be obtained in the form of hydrogen chloride.
- zinc chloride, sulfuric acid, and activated clay were used as the catalyst, but it goes without saying that the same reaction can be performed with other Bronsted acid or Lewis acid catalysts.
- the reflux condenser was replaced with a distillation tower, the system was depressurized to 15 mmHg, and a fraction having a boiling point of 90 ° C. was distilled off to obtain 85.3 g of a crude liquid.
- the crude liquid was subjected to simple distillation to obtain 33.4 g (0.067 mol, boiling point) of 2-chloro-2-methylpropanoic acid 1H, 1H, 2H, 2H-tridecafluorooctyl (15-1) having a GC purity of 94.6%. 242 ° C., yield 33.1%.).
- the product compound (15-1) was assigned a structure by 1 H-NMR and 19 F-NMR. The results are shown below.
- 1 H-NMR (300.4 MHz, CDCl 3 , TMS) ⁇ ; 1.79 (s, 6H), ⁇ ; 2.45-2.62 (m, 2H), ⁇ ; 4.49 (t, J (6.4Hz, 2H)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
[1]下記式(1)で表される化合物(1)を、0℃~350℃の温度で、ブレンステッド酸触媒及び/又はルイス酸触媒の存在下で反応させ、下記式(2)で表される化合物(2)を調製する工程Aを含む、不飽和酸及び/又は不飽和酸エステルの製造方法。
[2]前記ブレンステッド酸触媒及び/又はルイス酸触媒が、下記一般式(A)で表される化合物もしくはそれらの混合物である、上記[1]記載の製造方法。
MnYm (A)
ここで、Mは、水素イオン、又は、周期表第2族及び第4~14族の元素からなる群から選ばれる金属または半金属のカチオンであり、Yは、ハロゲン化物イオン、硫酸イオン、硝酸イオン、炭酸イオン、炭酸水素イオン、硫化物イオン、酸化物イオン、水酸化物イオン、アルコキシドイオン、リン酸イオン、酢酸イオン、及び過塩素酸イオンからなる群から選ばれるアニオンであり、n及びmは、カチオンMの価数×n=アニオンYの価数×mを満たす数である。
[3]Mが亜鉛、鉄、及び銅からなる群から選ばれる金属のカチオンであり、Yがフッ化物イオン、塩化物イオン、又は臭化物イオンである、上記[2]記載の製造方法。
[4] 前記ルイス酸触媒が、活性白土、酸性白土、ゼオライト、ヘテロポリ酸又はイオン交換樹脂である上記[1]記載の製造方法
[5]化合物(1)の1モルに対して、ブレンステッド酸触媒及び/又はルイス酸触媒が0.001~1モルの割合で存在する、上記[1]~[4]のいずれか一つに記載の製造方法。
[6]工程Aが、炭素数1~8の、ハロゲン原子および/または重水素原子で置換されていてよい、アルコール、但し前記式(1)で表される化合物(1)を除く、及び/又は水を添加する工程を含む、上記[1]~[5]のいずれか一つに記載の製造方法。
[7]工程Aの後に、化合物(2)を含む工程Aの生成物から下記式(3)で表される化合物(3)を調製する工程Bをさらに含む、上記[1]~[6]のいずれか一つに記載の製造方法。
[8]R1、R2、R4及びR6が、互いに独立に、水素原子、重水素原子、又は重水素原子で置換されていてよい炭素数1~3のアルキル基である、上記[1]~[7]のいずれか一つに記載の製造方法。
[9]R1及びR2が、互いに独立に、水素原子又は重水素原子であり、R4及びR6が重水素原子で置換されていてよいメチル基である、上記[8]記載の製造方法。
[10]工程Aの前に、重水素原子で置換されていてよいアセトンと、ハロゲノホルムもしくは重ハロゲノホルムを反応させ、化合物(1)を調製する工程Cをさらに含む、上記[9]記載の製造方法。
MnYm (A)
ここで、Mは、水素イオン、又は、周期表第2族及び第4~14族の元素からなる群から選ばれる金属または半金属のカチオンであり、Yはハロゲン化物イオン、硫酸イオン、硝酸イオン、炭酸イオン、炭酸水素イオン、硫化物イオン、酸化物イオン、水酸化物イオン、アルコキシドイオン、リン酸イオン、酢酸イオン、及び過塩素酸イオンからなる群から選ばれるアニオンであり、n及びmは、カチオンMの価数×n=アニオンYの価数×mを満たす数である。
その他に、ルイス酸触媒として固体酸を用いてもよい。固体酸としては、活性白土、酸性白土、ゼオライト、ヘテロポリ酸、イオン交換樹脂などが挙げられる。
活性白土は、天然に産出する酸性白土(モンモリロナイト系粘土)を硫酸などの鉱酸で処理したものであり、多孔質構造をもった化合物である。共に一般的な化学成分として、SiO2、Al2O3、Fe2O3、CaO、MgOなどを有する。
ヘテロポリ酸とは、一般的には異なる2種以上の酸化物複合体からなる複合酸化物酸、およびこれらのプロトンの一部もしくはすべてを他のカチオンで置き換えたものである。ヘテロポリ酸は、例えば、リン、ヒ素、スズ、ケイ素、チタン、ジルコニウムなどの元素の酸素酸イオン(例えば、リン酸、ケイ酸)とモリブデン、タングステン、バナジウム、ニオブ、タンタルなどの元素の酸素酸イオン(バナジン酸、モリブデン酸、タングステン酸)とで構成されており、その組み合わせにより種々のヘテロポリ酸が可能である。
ヘテロポリ酸を構成する酸素酸の元素は特に限定されるものではないが、例えば、銅、ベリリウム、ホウ素、アルミニウム、炭素、ケイ素、ゲルマニウム、スズ、チタン、ジルコニウム、セリウム、トリウム、窒素、リン、ヒ素、アンチモン、バナジウム、ニオブ、タンタル、クロム、モリブデン、タングステン、ウラン、セレン、テルル、マンガン、ヨウ素、鉄、コバルト、ニッケル、ロジウム、オスミウム、イリジウム、白金などが挙げられる。
なお、以下においてガスクロマトグラフィをGCと、GC質量分析をGC-MSと記す。収率とは特に記載しない限り単離収率を意味する。NMRスペクトルのピーク面積比より求まる収率をNMR収率と記す。また、GCのピーク面積比より求まる純度をGC純度と記す。圧力は特に記載しない限り、ゲージ圧である。酸素または水分に敏感な化合物を扱う反応は、窒素気流下にて反応を行った。
さらにメタノールの259.7g(8.111mol)を60分かけて加え、60℃に加熱し6時間撹拌した。
還流冷却器を蒸留塔に付け替え、系を5.3kPaに減圧し沸点52℃までの溜分を溜出させて401.0gの粗液を得た。粗液を充填塔を使って蒸留してGC純度99%以上の標記化合物(2-クロロ-2-メチルプロパン酸メチル)306.8g(2.246mol、沸点133-134℃、収率83%。)を得た。
1H-NMR(300.4MHz,CDCl3,TMS)δ;1.79(s,6H),3.80(s,3H).
室温まで冷却し、メタノールの6.60g(200mmol)を加え、60℃に加熱し5.5時間撹拌した。
内容物を80gの水にあけ、ジクロロメタンの40mLで1回、20mLで3回抽出した。有機層を塩水の20mLで2回洗浄し、硫酸マグネシウムで乾燥後、濃縮し13.7gの粗液を得た。NMR分析によりこの粗液には2-クロロ-2-メチルプロパン酸メチルの6.69g(49.0mmol)が含有されていることがわかった。NMR収率は72%。
さらにメタノールの10.9g(340mmol)を加え、60℃に加熱し6時間撹拌した。
内容物を100gの氷水にあけ、ジクロロメタンの40mLで1回、20mLで3回抽出した。有機層を塩水の20mLで2回洗浄し、硫酸マグネシウムで乾燥後、濃縮し12.2gの粗液を得た。NMR分析によりこの粗液には2-クロロ-2-メチルプロパン酸メチルの8.76g(64.2mmol)が含有されていることがわかった。NMR収率は94%。
分析の結果、1,1,1-トリクロロ-2-メチル-2-プロパノールの転化率は99.0%であり1,1,1-トリクロロ-2-メチル-2-プロパノール基準の2-クロロ-2-メチルプロパン酸メチルの収率は55.6%であり、1,1,3-トリクロロ-2-メチルプロペンの収率は17.5%であり、2-クロロ-2-メチルプロパン酸1,1,1-トリクロロ-2-メチルの収率は6.4%であった。
該反応器の内部温度を50℃に維持し、52.2重量パーセントの原料アルコールのノルマルオクタン溶液を毎分0.94gで添加するとともに、留分を冷却トラップによって回収した。520分連続的に添加し、合計で486.8gの原料溶液を添加し、留分として365.6gを得た。得られた溶液のNMR分析により837.5ミリモルの2-クロロ-2-メチルプロパン酸クロリドの生成を確認した。これは用いた原料アルコール基準で58.8%の収率に相当する。
また、水酸化ナトリウム水溶液の滴定により、1.18モル相当の酸性ガスの発生を確認した。これは塩化水素換算で43.0gであり、用いた原料アルコール基準で82%の収率に相当する。
1,1,1-トリクロロ-2-メチル-2-プロパノール0.5水和物の40g(0.215mol)と1,2-ジクロロエタンの120g(1.213mol)を0.3Lの三ツ口フラスコに入れて、蒸留塔を取り付け、1,2-ジクロロエタンと水の共沸混合物を留去し、さらに濃縮し、溶液を得た。該溶液を、硫酸の44.19g(0.454mol)を入れた還流冷却器がついた0.5Lの三ツ口フラスコに、内温を35℃以下に保ちながら70分かけて滴下した。滴下終了後、塩酸ガスが激しく発生するのが認められた。そのまま終夜撹拌した。
さらに1H,1H,2H,2H-トリデカフルオロ-1-オクタノールの156.2g(0.429mol)を30分かけて加え、60℃に加熱し6時間撹拌した。
還流冷却器を蒸留塔に付け替え、系を15mmHgに減圧し沸点90℃までの溜分を溜出させて85.3gの粗液を得た。粗液を単蒸留してGC純度94.6%の2-クロロ-2-メチルプロパン酸1H,1H,2H,2H-トリデカフルオロオクチル(15-1)の33.4g(0.067mol、沸点242℃、収率33.1%。)を得た。
1,1,1-トリクロロ-2-メチル-2-プロパノール0.5水和物の40g(0.215mol)とニトロベンゼンの200g(1.625mol)を0.3Lの三ツ口フラスコに入れて、蒸留塔を取り付け、ニトロベンゼンと水の共沸混合物を溜去した。該溶液に塩化鉄の3.42g(0.021モル、原料アルコールに対して0.1モル)を入れて攪拌した。
さらに1H,1H,2H,2H-トリデカフルオロ-1-オクタノールの156.2g(0.429mol)を25分かけて滴下し、120℃に加熱し7時間撹拌した後、ガスクロマトグラフィーによる分析によって、1,1,1-トリクロロ-2-メチル-2-プロパノールの転化率は83.8%であり、2-クロロ2-メチルプロパン酸1H,1H,2H,2H-トリデカフルオロオクチル(15-1)の収率が62.52%であることが分かった。
1H-NMR(300.4MHz,CDCl3,TMS)δ;1.79(s,6H),δ;2.45-2.62(m,2H),δ;4.49(t,J=6.4Hz,2H)
19F-NMR(300.4MHz,CDCl3)δ;-81.3(s,3F),δ;-114.0(s,2F),δ;-122.3(s,2F),δ;-123.3(s,2F)
内径4.35mmのインコネル製チューブを全長30cmの電気炉で540℃に加熱した。これに、窒素(1.26L/hr)と2-クロロ-2-メチルプロパン酸1H,1H,2H,2H-トリデカフルオロオクチル(24.5g/hr)を同時に33分間流通させた。生成物はドライアイストラップで捕集した。
2-クロロ-2-メチルプロパン酸1H,1H,2H,2H-トリデカフルオロオクチルの13.6g(29.0mmol)が投入され、ドライアイストラップには12.4gの液体が捕集された。NMR分析によりこの液体には、メタクリル酸1H,1H,2H,2H-トリデカフルオロオクチルの1.36g(3.09mmol)と2-クロロ-2-メチルプロパン酸1H,1H,2H,2H-トリデカフルオロオクチルの2.61g(5.56mmol)が含有されていることがわかった。2-クロロ-2-メチルプロパン酸1H,1H,2H,2H-トリデカフルオロオクチルの転化率81%、メタクリル酸1H,1H,2H,2H-トリデカフルオロオクチル(15-2)の選択率13%であった。
本出願は、2012年9月4日出願の日本特許出願2012-193801に基づくものであり、その内容はここに参照として取り込まれる。
Claims (10)
- 下記式(1)で表される化合物(1)を、0℃~350℃の温度で、ブレンステッド酸触媒及び/又はルイス酸触媒の存在下で反応させ、下記式(2)で表される化合物(2)を調製する工程Aを含む、不飽和酸及び/又は不飽和酸エステルの製造方法。
- 前記ブレンステッド酸触媒及び/又はルイス酸触媒が、下記一般式(A)で表される化合物もしくはそれらの混合物である、請求項1記載の製造方法。
MnYm(A)
(ここで、Mは、水素イオン、又は、周期表第2族及び第4~14族の元素からなる群から選ばれる金属または半金属のカチオンであり、Yは、ハロゲン化物イオン、硫酸イオン、硝酸イオン、炭酸イオン、炭酸水素イオン、硫化物イオン、酸化物イオン、水酸化物イオン、アルコキシドイオン、リン酸イオン、酢酸イオン、及び過塩素酸イオンからなる群から選ばれるアニオンであり、n及びmは、カチオンMの価数×n=アニオンYの価数×mを満たす数である。) - Mが亜鉛、鉄、及び銅からなる群から選ばれる金属のカチオンであり、Yがフッ化物イオン、塩化物イオン、又は臭化物イオンである、請求項2記載の製造方法。
- 前記ルイス酸触媒が、活性白土、酸性白土、ゼオライト、ヘテロポリ酸又はイオン交換樹脂である、請求項1記載の製造方法。
- 化合物(1)の1モルに対して、ブレンステッド酸触媒及び/又はルイス酸触媒が0.001~1モルの割合で存在する、請求項1~4のいずれか1項記載の製造方法。
- 工程Aが、炭素数1~8の、ハロゲン原子および/または重水素原子で置換されていてよい、アルコール、但し前記式(1)で表される化合物(1)を除く、及び/又は水を添加する工程を含む、請求項1~5のいずれか1項記載の製造方法。
- R1、R2、R4及びR6が、互いに独立に、水素原子、重水素原子、又は重水素原子で置換されていてよい炭素数1~3のアルキル基である、請求項1~7のいずれか1項記載の製造方法。
- R1及びR2が、互いに独立に、水素原子又は重水素原子であり、R4及びR6が重水素原子で置換されていてよいメチル基である、請求項8記載の製造方法。
- 工程Aの前に、重水素原子で置換されていてよいアセトンと、ハロゲノホルムもしくは重ハロゲノホルムを反応させ、化合物(1)を調製する工程Cをさらに含む、請求項9記載の製造方法。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014534334A JP6183369B2 (ja) | 2012-09-04 | 2013-08-30 | 不飽和酸及び/又は不飽和酸エステルの製造方法 |
RU2015107462A RU2015107462A (ru) | 2012-09-04 | 2013-08-30 | Способ получения ненасыщенной кислоты и/или сложного эфира ненасыщенной кислоты |
CN201380045952.9A CN104619679A (zh) | 2012-09-04 | 2013-08-30 | 不饱和酸和/或不饱和酸酯的制造方法 |
SG11201501582XA SG11201501582XA (en) | 2012-09-04 | 2013-08-30 | Method for producing unsaturated acid and/or unsaturated acid ester |
KR1020157004073A KR20150047491A (ko) | 2012-09-04 | 2013-08-30 | 불포화산 및/또는 불포화산 에스테르의 제조 방법 |
EP13835065.7A EP2894145A4 (en) | 2012-09-04 | 2013-08-30 | METHOD FOR PRODUCING AN UNSATURATED ACID AND / OR UNATHERATED ACID ESTERS |
US14/636,510 US9238612B2 (en) | 2012-09-04 | 2015-03-03 | Method for producing unsaturated acid and/or unsaturated acid ester |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-193801 | 2012-09-04 | ||
JP2012193801 | 2012-09-04 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/636,510 Continuation US9238612B2 (en) | 2012-09-04 | 2015-03-03 | Method for producing unsaturated acid and/or unsaturated acid ester |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014038489A1 true WO2014038489A1 (ja) | 2014-03-13 |
Family
ID=50237101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/073410 WO2014038489A1 (ja) | 2012-09-04 | 2013-08-30 | 不飽和酸及び/又は不飽和酸エステルの製造方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US9238612B2 (ja) |
EP (1) | EP2894145A4 (ja) |
JP (1) | JP6183369B2 (ja) |
KR (1) | KR20150047491A (ja) |
CN (1) | CN104619679A (ja) |
RU (1) | RU2015107462A (ja) |
SG (1) | SG11201501582XA (ja) |
TW (1) | TWI583666B (ja) |
WO (1) | WO2014038489A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015005243A1 (ja) * | 2013-07-12 | 2015-01-15 | 旭硝子株式会社 | 不飽和酸エステル又は不飽和酸の製造方法 |
WO2015122476A1 (ja) * | 2014-02-17 | 2015-08-20 | 旭硝子株式会社 | カーボネート化合物およびメタクリル酸またはそのエステルの製造方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106928044B (zh) * | 2017-03-21 | 2020-08-25 | 上海康鹏科技股份有限公司 | 一种氟代苯乙酸的制备方法 |
CN108794320B (zh) * | 2017-04-28 | 2020-04-14 | 浙江天宇药业股份有限公司 | 一种2,4,5-三氟苯乙酸的制备方法 |
CN107417509B (zh) * | 2017-05-24 | 2020-08-25 | 上海康鹏科技股份有限公司 | 一种苯乙酸化合物的制备方法 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2462389A (en) | 1946-07-29 | 1949-02-22 | Socony Vacuum Oil Co Inc | Manufacture of chloretone |
JPS4864018A (ja) | 1971-12-10 | 1973-09-05 | ||
JPS4918823A (ja) | 1972-06-14 | 1974-02-19 | ||
JPS4982611A (ja) | 1972-12-19 | 1974-08-08 | ||
JPH01213255A (ja) * | 1988-02-22 | 1989-08-28 | Sumitomo Chem Co Ltd | カルボン酸の製造方法 |
JPH06256250A (ja) * | 1993-03-08 | 1994-09-13 | Toagosei Chem Ind Co Ltd | モノカルボン酸の製造方法 |
JPH09227443A (ja) * | 1996-02-19 | 1997-09-02 | Asahi Glass Co Ltd | トリフルオロ酢酸の製造方法 |
JPH11124347A (ja) | 1997-10-20 | 1999-05-11 | Nippon Shokubai Co Ltd | メタノールの回収方法 |
JP2002371028A (ja) * | 2001-06-14 | 2002-12-26 | Central Glass Co Ltd | 3,3,3−トリフルオロ−2−ヒドロキシプロピオン酸誘導体の製造方法 |
JP3883354B2 (ja) | 2000-02-10 | 2007-02-21 | セントラル硝子株式会社 | トリフルオロメチルカルビノール誘導体の製造方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2226645A (en) * | 1937-11-04 | 1940-12-31 | Celanese Corp | Manufacture of methacrylic acid and esters thereof |
US2438164A (en) * | 1946-03-28 | 1948-03-23 | Socony Vacuum Oil Co Inc | Process for the production of methacrylic acid |
GB754295A (en) * | 1953-09-03 | 1956-08-08 | Dow Chemical Co | Preparation of ª -chloro-ª -methyl aliphatic acids and acid chlorides |
WO2015005243A1 (ja) * | 2013-07-12 | 2015-01-15 | 旭硝子株式会社 | 不飽和酸エステル又は不飽和酸の製造方法 |
-
2013
- 2013-08-30 JP JP2014534334A patent/JP6183369B2/ja not_active Expired - Fee Related
- 2013-08-30 CN CN201380045952.9A patent/CN104619679A/zh active Pending
- 2013-08-30 SG SG11201501582XA patent/SG11201501582XA/en unknown
- 2013-08-30 RU RU2015107462A patent/RU2015107462A/ru not_active Application Discontinuation
- 2013-08-30 WO PCT/JP2013/073410 patent/WO2014038489A1/ja active Application Filing
- 2013-08-30 KR KR1020157004073A patent/KR20150047491A/ko not_active Application Discontinuation
- 2013-08-30 EP EP13835065.7A patent/EP2894145A4/en not_active Withdrawn
- 2013-09-04 TW TW102131867A patent/TWI583666B/zh not_active IP Right Cessation
-
2015
- 2015-03-03 US US14/636,510 patent/US9238612B2/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2462389A (en) | 1946-07-29 | 1949-02-22 | Socony Vacuum Oil Co Inc | Manufacture of chloretone |
JPS4864018A (ja) | 1971-12-10 | 1973-09-05 | ||
JPS4918823A (ja) | 1972-06-14 | 1974-02-19 | ||
JPS4982611A (ja) | 1972-12-19 | 1974-08-08 | ||
JPH01213255A (ja) * | 1988-02-22 | 1989-08-28 | Sumitomo Chem Co Ltd | カルボン酸の製造方法 |
JPH06256250A (ja) * | 1993-03-08 | 1994-09-13 | Toagosei Chem Ind Co Ltd | モノカルボン酸の製造方法 |
JPH09227443A (ja) * | 1996-02-19 | 1997-09-02 | Asahi Glass Co Ltd | トリフルオロ酢酸の製造方法 |
JPH11124347A (ja) | 1997-10-20 | 1999-05-11 | Nippon Shokubai Co Ltd | メタノールの回収方法 |
JP3883354B2 (ja) | 2000-02-10 | 2007-02-21 | セントラル硝子株式会社 | トリフルオロメチルカルビノール誘導体の製造方法 |
JP2002371028A (ja) * | 2001-06-14 | 2002-12-26 | Central Glass Co Ltd | 3,3,3−トリフルオロ−2−ヒドロキシプロピオン酸誘導体の製造方法 |
Non-Patent Citations (7)
Title |
---|
CAN, vol. 134, pages 41908 |
J. ORG. CHEM., vol. 65, 2000, pages 1597 - 1599 |
JOURNAL OF ORGANIC CHEMISTRY, vol. 65, 2000, pages 7211 - 7212 |
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 70, 1948, pages 1153 - 1158 |
KHIMICHESKII ZHUMAL ARMENII, vol. 53, no. 1-2, 2000, pages 99 - 104 |
See also references of EP2894145A4 * |
TETRAHEDRON LETTERS, vol. 27, no. 27, 1986, pages 3129 - 32 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015005243A1 (ja) * | 2013-07-12 | 2015-01-15 | 旭硝子株式会社 | 不飽和酸エステル又は不飽和酸の製造方法 |
JPWO2015005243A1 (ja) * | 2013-07-12 | 2017-03-02 | 旭硝子株式会社 | 不飽和酸エステル又は不飽和酸の製造方法 |
US9598345B2 (en) | 2013-07-12 | 2017-03-21 | Asahi Glass Company, Limited | Method for producing unsaturated acid ester or unsaturated acid |
WO2015122476A1 (ja) * | 2014-02-17 | 2015-08-20 | 旭硝子株式会社 | カーボネート化合物およびメタクリル酸またはそのエステルの製造方法 |
US9617379B2 (en) | 2014-02-17 | 2017-04-11 | Asahi Glass Company, Limited | Production method for carbonate compound and methacrylate or ester thereof |
Also Published As
Publication number | Publication date |
---|---|
EP2894145A1 (en) | 2015-07-15 |
CN104619679A (zh) | 2015-05-13 |
JP6183369B2 (ja) | 2017-08-23 |
JPWO2014038489A1 (ja) | 2016-08-08 |
SG11201501582XA (en) | 2015-05-28 |
TWI583666B (zh) | 2017-05-21 |
RU2015107462A (ru) | 2016-10-27 |
TW201414713A (zh) | 2014-04-16 |
KR20150047491A (ko) | 2015-05-04 |
US9238612B2 (en) | 2016-01-19 |
EP2894145A4 (en) | 2016-04-20 |
US20150175520A1 (en) | 2015-06-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6183369B2 (ja) | 不飽和酸及び/又は不飽和酸エステルの製造方法 | |
JP4324569B2 (ja) | 含フッ素2,4−ジオール類およびその誘導体の製造方法 | |
JP2005239710A5 (ja) | ||
JP6332285B2 (ja) | カーボネート化合物およびメタクリル酸またはそのエステルの製造方法 | |
JP6330806B2 (ja) | 不飽和酸エステル又は不飽和酸の製造方法 | |
JP4641839B2 (ja) | 4−メチル−3−トリフルオロメチル安息香酸の製造方法 | |
JP5816037B2 (ja) | 3,3,3−トリフルオロプロパノール類の製造方法 | |
JP6086163B2 (ja) | 2’−トリフルオロメチル基置換芳香族ケトンの製造方法 | |
CN107021883B (zh) | 一种多取代基联苯卤代物液晶中间体的合成方法及应用 | |
JP6074670B2 (ja) | ペルフルオロアルケニルオキシ基含有アレーン化合物の製造法 | |
TW201808871A (zh) | 縮醛化合物之製造方法 | |
KR101212565B1 (ko) | 함불소 레지스트용 모노머류의 제조 방법 | |
JP2013028559A (ja) | 3−クロロ−4−メチル安息香酸イソプロピル及びその製造方法 | |
CN117396453A (zh) | 1-氯-2,3,3-三氟丙烯的制造方法 | |
JP2007051079A (ja) | 芳香族アセチレン類の製造方法 | |
JP6341040B2 (ja) | 1,1,1,5,5,5−ヘキサフルオロアセチルアセトンの製造方法 | |
JP2011079763A (ja) | 含フッ素アルキルブロマイドの製造方法 | |
JPH09241184A (ja) | フリーデル−クラフト−アルキル化反応生成物の製造方法 | |
山田重之 | Studies on the developments of selective synthetic methods for polyfluoroalkene derivatives by employing organometallic reagents | |
WO2004039760A1 (ja) | フルオロ(トリフルオロメチル)桂皮酸の製造方法 | |
JP2006248905A (ja) | 含フッ素アクリル酸エステル誘導体の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13835065 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2014534334 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20157004073 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: IDP00201501246 Country of ref document: ID |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2015107462 Country of ref document: RU Kind code of ref document: A |