WO2006123563A1 - 含フッ素アルキルエーテルの処理方法 - Google Patents
含フッ素アルキルエーテルの処理方法 Download PDFInfo
- Publication number
- WO2006123563A1 WO2006123563A1 PCT/JP2006/309426 JP2006309426W WO2006123563A1 WO 2006123563 A1 WO2006123563 A1 WO 2006123563A1 JP 2006309426 W JP2006309426 W JP 2006309426W WO 2006123563 A1 WO2006123563 A1 WO 2006123563A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluorine
- alkyl ether
- reaction
- unsaturated
- containing alkyl
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C43/00—Ethers; Compounds having groups, groups or groups
- C07C43/02—Ethers
- C07C43/03—Ethers having all ether-oxygen atoms bound to acyclic carbon atoms
- C07C43/04—Saturated ethers
- C07C43/12—Saturated ethers containing halogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B63/00—Purification; Separation; Stabilisation; Use of additives
- C07B63/02—Purification; Separation; Stabilisation; Use of additives by treatment giving rise to a chemical modification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B61/00—Other general methods
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/34—Separation; Purification; Stabilisation; Use of additives
- C07C41/40—Separation; Purification; Stabilisation; Use of additives by change of physical state, e.g. by crystallisation
- C07C41/42—Separation; Purification; Stabilisation; Use of additives by change of physical state, e.g. by crystallisation by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/34—Separation; Purification; Stabilisation; Use of additives
- C07C41/44—Separation; Purification; Stabilisation; Use of additives by treatments giving rise to a chemical modification
Definitions
- the present invention relates to a technique for producing a fluorine-containing alkyl ether in a simple and high yield.
- Fluorine-containing alkyl ether is a compound that has recently been attracting attention as an alternative to black mouth fluorocarbon, which has been used as a conventional fluorocarbon, and has no chlorine atom with a short atmospheric lifetime. It is characterized by destruction and global warming, as well as little impact on the global environment!
- the fluorine-containing alkyl ether which is the target product, and dehydrogenated hydrogen from the reaction intermediate proceed simultaneously, resulting in an impurity having an unsaturated bond. Is a by-product.
- the impurity having an unsaturated bond is the industrially simplest purification method having a boiling point close to that of the fluorine-containing alkyl ether. It is difficult to obtain a high-purity fluorine-containing alkyl ether by distillation purification. was there.
- Patent Document 1 US Pat. No. 3,557,294 (Example)
- Patent Document 2 JP-A-9 263559 (Claims)
- Patent Document 3 Japanese Patent Laid-Open No. 2002-201152 (Claims) Disclosure of the invention
- An object of the present invention is to provide a method for producing a highly pure fluorine-containing alkyl ether on an industrial scale, in which the content of impurities having an unsaturated bond is extremely small! Means for solving the problem
- the present invention relates to a fluorine-containing alkyl ether obtained by reacting a fluorine-containing alkyl alcohol and a fluorine-containing olefin in the presence of a basic catalyst, and an unsaturated group having an unsaturated bond as a by-product in the above reaction.
- a method for treating a fluorinated alkyl ether characterized in that a crude reaction solution containing impurities is brought into contact with chlorine gas to convert the unsaturated impurities into a chlorine adduct and to separate the chlorine adduct. provide.
- the above unsaturated impurities which are difficult to be separated by distillation can be easily distilled off by converting them into chlorine adducts.
- high-purity fluorine-containing alkyl ether can be produced on an industrial scale.
- the crude reaction liquid in the present invention contains a fluorinated alkyl ether obtained by reacting a fluorinated alkyl alcohol and a fluorinated olefin in the presence of a basic catalyst, and the unsaturated impurities.
- the unsaturated impurity is a by-product when a fluorine-containing alkyl alcohol and a fluorine-containing olefin are reacted to produce a fluorine-containing alkyl ether, and depending on the alkali used as a catalyst, It is produced by dehalogenation or hydrogenation from the obtained fluorinated alkyl ether or reaction intermediate.
- the unsaturated impurity includes a halogenated hydrocarbon having an unsaturated bond such as a double bond or a triple bond between carbon atoms.
- the unsaturated impurities do not include fluorine-containing olefins used as raw materials.
- the raw material fluorine-containing alkyl alcohol in the present invention may be a compound in which at least one hydrogen atom other than the hydroxyl group of the hydrocarbon alcohol is substituted with a fluorine atom.
- a fluorine atom such as a hydrogen atom other than the hydroxyl group of the hydrocarbon alcohol.
- R f is CHFX
- X is a halogen atom other than fluorine atom
- a is preferably an integer of 1 to 10, particularly preferably an integer of 2 to 4.
- E is preferably 0.
- fluorine-containing alkyl alcohols that can be used include CF CH OH, CF CF CH OH, CF (CF) CH OH, CF (C
- fluorine-containing alkyl alcohols that can be suitably used include 2, 2, 2 trifluoroethanol (CF CH OH, hereinafter referred to as TFEO) and 2, 2, 3, 3-tetrafluoro.
- TFPO 1-propanol
- ⁇ and ⁇ each independently represent a hydrogen atom, a fluorine atom, or a trifluoromethyl group.
- the treatment method of the present invention comprises a compound represented by formula 1 (fluorinated alkyl alcohol) and a compound represented by formula 3 (fluorinated alkyl ether) obtained by reacting HFP,
- the above reaction is applied to a reaction crude liquid containing a compound represented by formula 4 (the above unsaturated impurity) and a compound represented by Z or formula 5 (the above unsaturated impurity) as a by-product. It is preferable.
- Equation 3 Equation 4 and Equation 5 is the same as the definition of R f in Equation 1.
- an alkali metal alkoxide or an alkali metal hydroxide is used from the viewpoint of basic strength and versatility. Is preferred.
- the alkali metal alkoxide a commercially available one may be used as it is, or one obtained by reacting an alkali metal, an alkali metal hydride, or an alkali metal amide with an alcohol may be used.
- the alcohol used in this reaction is not particularly limited, but it is preferable to use a fluorinated alkyl alcohol used as a raw material in the present invention.
- examples of the alkali metal include Na, K, and Cs
- examples of the alkali metal hydride include NaH and KH
- examples of the alkali metal amide include NaNH and KNH.
- Alkaline metal hydroxides are easy to handle and versatile. NaOH, KOH, etc. Is particularly preferably used. These alkali metal hydroxides have the advantage that they can be used as aqueous solutions.
- a solvent capable of improving the reaction rate may be used.
- This solvent is preferably an aprotic polar solvent, such as a linear ether such as jetyl ether or glyme, a cyclic ether such as dioxane or tetrahydrofuran, or a tolyl compound such as acetonitrile or propio-tolyl.
- glymes such as tetraglyme are particularly preferably used because the reaction rate can be further improved and separation from the product is easy.
- the solvent is removed by distillation or the like before the reaction crude liquid is contacted with chlorine gas. It is preferable to separate and remove.
- the unsaturated impurity is converted into a chlorine adduct by bringing the reaction crude liquid into contact with chlorine gas.
- a compound of formula 4 is converted to a compound of formula 6 and a compound of formula 5 is converted to a compound of formula 7.
- R f in Equation 6 and Equation 7 is the same as R f in Equation 1.
- the gasified reaction crude liquid and chlorine gas are brought into contact in a reactor filled with a catalyst such as activated carbon.
- a catalyst such as activated carbon.
- the phase method include a liquid phase method in which chlorine gas is introduced into the reaction crude liquid under light irradiation and the two are brought into contact with each other.
- the gas phase method there are a method in which the reaction phase with the catalyst is performed in a fixed bed and a method in which the reaction phase is performed in a fluidized bed.
- the type of catalyst, particle size, etc. are also appropriately determined according to the reactor.
- the supply amount of chlorine gas is 1 to 1 X 10 chlorine gas with respect to 1 mol of the unsaturated impurities contained in the reaction crude liquid.
- the amount is preferably 5 mol, particularly 1 to 1 ⁇ 10 4 mol, more preferably 1 to 1 ⁇ 10 3 mol.
- Chlorine moth If the amount of gas supplied is too large, the target product may be chlorinated.
- inert gas components such as nitrogen gas may coexist from the viewpoint of suppressing heat generation.
- the contact temperature between the reaction crude liquid and the chlorine gas is a temperature at which chlorine addition reaction to the unsaturated impurities occurs, but the chlorination reaction or decomposition reaction of the target fluorine-containing alkyl ether is suppressed.
- the temperature is preferably not less than the temperature at which the fluorine-containing alkyl ether and chlorine are substantially present as a gas and not more than 400 ° C, and particularly preferably 100 to 300 ° C.
- the contact time between the reaction crude liquid and the chlorine gas varies depending on the type of catalyst used and the flow rate of the chlorine gas to be contacted.
- the force is preferably 0.01 to 600 seconds, and more preferably 0.1 to 180 seconds.
- the pressure at the time of the contact is not limited as long as the reaction crude liquid and chlorine gas to be treated are not liquefied during the reaction, but it is preferably slightly reduced pressure to 0.5 MPa (gauge pressure).
- the catalyst used in the gas phase method is preferably activated carbon.
- the activated carbon is not particularly limited as long as it has a property of adsorbing fluorine-containing olefin and chlorine, but an activated carbon having a large surface area and excellent in acid resistance and halogen resistance is preferable. Specifically, coconut shell activated carbon, wood activated carbon, coal-based activated carbon, petroleum-based activated carbon and the like are preferable.
- the activated carbon catalyst is preferably removed by bringing it into contact with chlorine gas or the like, since functional groups such as carbonyl groups present on the surface of the activated carbon catalyst may inhibit the catalytic activity.
- chlorine gas is introduced into the reaction crude liquid under light irradiation to bring them into contact with each other.
- a light source for performing light irradiation it is preferable to use a light source capable of irradiating ultraviolet rays having a wavelength of about 300 to 400 nm. Specific examples include an arc lamp containing mercury, argon or xenon, and a filament lamp containing tungsten and halogen.
- the reaction temperature in the liquid phase method is preferably in the range of about 50 ° C to 200 ° C, particularly about 10 ° C to 60 ° C.
- the reaction pressure is usually preferably from atmospheric pressure to IMPa.
- chlorine gas may be continuously supplied under light irradiation, light irradiation may be started after a predetermined amount is introduced into the reactor in a lump.
- the supply amount of chlorine gas is contained in the reaction crude liquid.
- the amount of chlorine gas is preferably 1 to 10000 mol, particularly 1 to 1000 mol, and more preferably 1 to 10 mol with respect to 1 mol of the unsaturated impurities. If the supply amount of chlorine gas is too large, the target product may be chlorinated.
- the content of the unsaturated impurities in the reaction crude liquid varies depending on the concentration of alkali used as a catalyst, the types of raw materials and solvents, reaction conditions, etc., but is usually in the range of 0.03 to 20% by mass. It is.
- the total content ratio of the unsaturated impurities is preferably 20% by mass or less in advance by distillation or the like.
- the total content of the unsaturated impurities in the reaction crude liquid can be reduced to 150 ppm or less, and further to lOO ppm or less.
- the unsaturated crude product is converted into a chlorine adduct by bringing the reaction crude liquid into contact with chlorine gas, and then the chlorine adduct is separated and removed by distillation.
- Distillation can be carried out by either continuous distillation or notch distillation, which is preferably carried out in a distillation column having multiple theoretical plate numbers.
- the pressure may be under atmospheric pressure or reduced pressure. It is preferable that the viewpoint power of suppressing the generation of decomposition products due to heat is also performed under reduced pressure.
- the obtained main fraction AlOOOOg was charged into a 1 L glass three-necked flask equipped with a reflux condenser, and chlorine gas was irradiated under UV irradiation with a 500 W high-pressure mercury lamp under ice cooling. 1 OOmLZ was supplied for 35 minutes, and the main fraction was contacted with chlorine gas.
- An inconel 600 U-shaped reaction tube with an inner diameter of 2.54 cm and a length of 600 cm is filled with 600 mL of activated carbon catalyst (manufactured by Takeda Pharmaceutical Company Limited, Shirasagi C2X: Ash content 1.2% by mass) in an oil bath. And kept at 200 ° C. Nitrogen gas was supplied to the reaction tube at lOOmLZ and chlorine gas at 880mLZ for 6 hours to remove unnecessary functional groups on the activated carbon. Next, the main fraction A obtained in Example 1 was gasified, and this was supplied to the reaction tube at 300 mLZ and chlorine gas at 30 mLZ for contact reaction at 150 ° C. The obtained reaction gas was collected in a trap cooled with dry ice.
- activated carbon catalyst manufactured by Takeda Pharmaceutical Company Limited, Shirasagi C2X: Ash content 1.2% by mass
- the high-purity fluorine-containing alkyl ether obtained by the present invention can be used as a cleaning agent for electronic parts, a solvent such as a lubricant, and a working fluid.
- a solvent such as a lubricant
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06746236A EP1882680A4 (en) | 2005-05-17 | 2006-05-10 | PROCESS FOR PROCESSING A FLUORINATED ALKYL ETHER |
JP2007516256A JPWO2006123563A1 (ja) | 2005-05-17 | 2006-05-10 | 含フッ素アルキルエーテルの処理方法 |
US11/939,736 US20080086019A1 (en) | 2005-05-17 | 2007-11-14 | Method for treating fluorinated alkyl ether |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005144104 | 2005-05-17 | ||
JP2005-144104 | 2005-05-17 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/939,736 Continuation US20080086019A1 (en) | 2005-05-17 | 2007-11-14 | Method for treating fluorinated alkyl ether |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006123563A1 true WO2006123563A1 (ja) | 2006-11-23 |
Family
ID=37431140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/309426 WO2006123563A1 (ja) | 2005-05-17 | 2006-05-10 | 含フッ素アルキルエーテルの処理方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080086019A1 (ja) |
EP (1) | EP1882680A4 (ja) |
JP (1) | JPWO2006123563A1 (ja) |
KR (1) | KR20080009706A (ja) |
CN (1) | CN101175707A (ja) |
WO (1) | WO2006123563A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008230979A (ja) * | 2007-03-16 | 2008-10-02 | Daikin Ind Ltd | 高純度含フッ素アルキルエーテルの製造方法 |
JP2008230981A (ja) * | 2007-03-16 | 2008-10-02 | Daikin Ind Ltd | 高純度含フッ素アルキルエーテルの製造方法 |
WO2009154135A1 (ja) | 2008-06-20 | 2009-12-23 | ダイキン工業株式会社 | 含フッ素エーテルの製造方法 |
WO2010147105A1 (ja) | 2009-06-15 | 2010-12-23 | ダイキン工業株式会社 | 高純度含フッ素エーテルの製造方法 |
WO2022085727A1 (ja) * | 2020-10-21 | 2022-04-28 | ダイキン工業株式会社 | 精製された含フッ素エーテル化合物を含む組成物の製造方法 |
RU2815834C1 (ru) * | 2020-10-21 | 2024-03-22 | Дайкин Индастриз, Лтд. | Способ получения композиции, содержащей очищенное фторсодержащее простое эфирное соединение |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20080063351A (ko) | 2005-10-28 | 2008-07-03 | 아사히 가라스 가부시키가이샤 | 신규 플루오로아다만탄 유도체, 함불소 중합체, 및 제조방법 |
KR101127162B1 (ko) * | 2009-11-02 | 2012-03-20 | 한국과학기술연구원 | 반 연속식 공정을 이용한 불화에테르 제조방법 및 제조장치 |
JP5056963B2 (ja) * | 2010-03-31 | 2012-10-24 | ダイキン工業株式会社 | 含フッ素アルカンの製造方法 |
JP5120513B2 (ja) | 2011-03-31 | 2013-01-16 | ダイキン工業株式会社 | リチウムイオン二次電池及びリチウムイオン二次電池用非水電解液 |
CN114456045B (zh) * | 2021-12-31 | 2023-10-24 | 山东华夏神舟新材料有限公司 | 一种高纯级氢氟醚的提纯方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001058967A (ja) * | 1999-08-23 | 2001-03-06 | Asahi Glass Co Ltd | 1,1,1,3,3−ペンタフルオロプロパンの処理方法 |
JP2002201152A (ja) * | 2000-12-28 | 2002-07-16 | National Institute Of Advanced Industrial & Technology | 含フッ素エーテル化合物の製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US3557294A (en) * | 1967-10-12 | 1971-01-19 | Allied Chem | Fluorinated ethers as inhalation convulsants |
EP1630151B1 (en) * | 2003-06-04 | 2010-07-14 | Asahi Glass Company Ltd. | Method for producing fluorine-containing alkyl ether |
CN1832909B (zh) * | 2003-08-11 | 2010-04-21 | 旭硝子株式会社 | 含氟烷基醚的制造方法 |
-
2006
- 2006-05-10 KR KR1020077025504A patent/KR20080009706A/ko not_active Application Discontinuation
- 2006-05-10 JP JP2007516256A patent/JPWO2006123563A1/ja not_active Withdrawn
- 2006-05-10 CN CNA2006800162758A patent/CN101175707A/zh active Pending
- 2006-05-10 EP EP06746236A patent/EP1882680A4/en not_active Withdrawn
- 2006-05-10 WO PCT/JP2006/309426 patent/WO2006123563A1/ja active Application Filing
-
2007
- 2007-11-14 US US11/939,736 patent/US20080086019A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001058967A (ja) * | 1999-08-23 | 2001-03-06 | Asahi Glass Co Ltd | 1,1,1,3,3−ペンタフルオロプロパンの処理方法 |
JP2002201152A (ja) * | 2000-12-28 | 2002-07-16 | National Institute Of Advanced Industrial & Technology | 含フッ素エーテル化合物の製造方法 |
Non-Patent Citations (1)
Title |
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See also references of EP1882680A4 * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008230979A (ja) * | 2007-03-16 | 2008-10-02 | Daikin Ind Ltd | 高純度含フッ素アルキルエーテルの製造方法 |
JP2008230981A (ja) * | 2007-03-16 | 2008-10-02 | Daikin Ind Ltd | 高純度含フッ素アルキルエーテルの製造方法 |
WO2009154135A1 (ja) | 2008-06-20 | 2009-12-23 | ダイキン工業株式会社 | 含フッ素エーテルの製造方法 |
US8835696B2 (en) | 2008-06-20 | 2014-09-16 | Daikin Industries, Ltd. | Method of preparing fluorine-containing ether |
WO2010147105A1 (ja) | 2009-06-15 | 2010-12-23 | ダイキン工業株式会社 | 高純度含フッ素エーテルの製造方法 |
WO2022085727A1 (ja) * | 2020-10-21 | 2022-04-28 | ダイキン工業株式会社 | 精製された含フッ素エーテル化合物を含む組成物の製造方法 |
JP2022068128A (ja) * | 2020-10-21 | 2022-05-09 | ダイキン工業株式会社 | 精製された含フッ素エーテル化合物を含む組成物の製造方法 |
JP7385141B2 (ja) | 2020-10-21 | 2023-11-22 | ダイキン工業株式会社 | 精製された含フッ素エーテル化合物を含む組成物の製造方法 |
RU2815834C1 (ru) * | 2020-10-21 | 2024-03-22 | Дайкин Индастриз, Лтд. | Способ получения композиции, содержащей очищенное фторсодержащее простое эфирное соединение |
TWI839648B (zh) * | 2020-10-21 | 2024-04-21 | 日商大金工業股份有限公司 | 包含經純化之含氟醚化合物之組成物的製造方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20080009706A (ko) | 2008-01-29 |
CN101175707A (zh) | 2008-05-07 |
EP1882680A1 (en) | 2008-01-30 |
US20080086019A1 (en) | 2008-04-10 |
JPWO2006123563A1 (ja) | 2008-12-25 |
EP1882680A4 (en) | 2008-06-25 |
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