WO2023003058A1 - 프탈로니트릴계 화합물의 제조방법 - Google Patents
프탈로니트릴계 화합물의 제조방법 Download PDFInfo
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- WO2023003058A1 WO2023003058A1 PCT/KR2021/009452 KR2021009452W WO2023003058A1 WO 2023003058 A1 WO2023003058 A1 WO 2023003058A1 KR 2021009452 W KR2021009452 W KR 2021009452W WO 2023003058 A1 WO2023003058 A1 WO 2023003058A1
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- Prior art keywords
- based compound
- weight
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- phthalonitrile
- Prior art date
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 98
- XQZYPMVTSDWCCE-UHFFFAOYSA-N phthalonitrile Chemical compound N#CC1=CC=CC=C1C#N XQZYPMVTSDWCCE-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229920006391 phthalonitrile polymer Polymers 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title abstract description 9
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims abstract description 46
- 150000002825 nitriles Chemical class 0.000 claims abstract description 35
- 239000000203 mixture Substances 0.000 claims abstract description 22
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 72
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 21
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 14
- JFDZBHWFFUWGJE-UHFFFAOYSA-N benzonitrile Chemical compound N#CC1=CC=CC=C1 JFDZBHWFFUWGJE-UHFFFAOYSA-N 0.000 claims description 9
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 4
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 claims description 4
- LRDFRRGEGBBSRN-UHFFFAOYSA-N isobutyronitrile Chemical compound CC(C)C#N LRDFRRGEGBBSRN-UHFFFAOYSA-N 0.000 claims description 4
- JAMNHZBIQDNHMM-UHFFFAOYSA-N pivalonitrile Chemical compound CC(C)(C)C#N JAMNHZBIQDNHMM-UHFFFAOYSA-N 0.000 claims description 4
- KYPOHTVBFVELTG-OWOJBTEDSA-N (e)-but-2-enedinitrile Chemical compound N#C\C=C\C#N KYPOHTVBFVELTG-OWOJBTEDSA-N 0.000 claims description 3
- NKKMVIVFRUYPLQ-NSCUHMNNSA-N crotononitrile Chemical compound C\C=C\C#N NKKMVIVFRUYPLQ-NSCUHMNNSA-N 0.000 claims description 3
- IAHFWCOBPZCAEA-UHFFFAOYSA-N succinonitrile Chemical compound N#CCCC#N IAHFWCOBPZCAEA-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 61
- 239000000047 product Substances 0.000 description 20
- LAQPNDIUHRHNCV-UHFFFAOYSA-N isophthalonitrile Chemical compound N#CC1=CC=CC(C#N)=C1 LAQPNDIUHRHNCV-UHFFFAOYSA-N 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 7
- 238000004817 gas chromatography Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- BHXFKXOIODIUJO-UHFFFAOYSA-N benzene-1,4-dicarbonitrile Chemical compound N#CC1=CC=C(C#N)C=C1 BHXFKXOIODIUJO-UHFFFAOYSA-N 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000543 intermediate Substances 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229940126062 Compound A Drugs 0.000 description 2
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- -1 xylene compound Chemical class 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 125000002560 nitrile group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/16—Preparation of carboxylic acid nitriles by reaction of cyanides with lactones or compounds containing hydroxy groups or etherified or esterified hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/32—Separation; Purification; Stabilisation; Use of additives
- C07C253/34—Separation; Purification
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Definitions
- It relates to a method for preparing a phthalonitrile-based compound, and more particularly, to a method for producing a phthalonitrile-based compound directly from a phthalonitrile-based compound.
- Phthalonitrile-based compounds are important compounds used as intermediates in the production of fiber-forming linear polymers.
- phthalonitrile is used as an organic synthetic intermediate for various fine chemical products such as amines, acid-amides, and complex nitrogen dyes, and is a high value-added raw material used in plasticizers, alkyd resin modifiers, and insecticides.
- a phthalonitrile-based compound was prepared by contacting and dehydrating a xylene compound with ammonia and an oxygen-containing gas in the presence of an oxidation catalyst.
- ammonia gas which is a harmful chemical, and is an ammoxidation reaction performed in the presence of a catalyst at high temperature and high pressure, the process is complicated, and high boiling point impurities must be purified and separated through distillation, so byproducts There are problems that are difficult to remove.
- the yield of the product varies depending on the type of catalyst used in the ammoxidation reaction and the oxygen-containing gas ratio, and the conversion rate of the xylene compound, which is a precursor, depends on the reaction temperature. It is difficult to control the process due to fluctuations.
- One object of the present specification is to provide a method for directly preparing a phthalonitrile-based compound from a phthalic acid-based compound.
- Another object of the present specification is to provide a method for producing an environmentally friendly phthalonitrile-based compound.
- step (a) preparing a mixture containing a phthalic acid-based compound and a nitrile-based compound; And (b) a step of reacting the mixture, wherein step (b) is performed under supercritical conditions of the nitrile-based compound, a method for producing a phthalonitrile-based compound is provided.
- the phthalic acid-based compound may be isophthalic acid, terephthalic acid, or a mixture thereof.
- the nitrile-based compound consists of hydrogen cyanide, acetonitrile, acrylonitrile, butyronitrile, isobutyronitrile, pivalonitrile, succinonitrile, fumaronitrile, crotonitrile and benzonitrile It may be one or more selected from the group.
- the nitrile-based compound may be acetonitrile.
- the mixture of step (a) may be composed of a phthalic acid-based compound and a nitrile-based compound.
- the content of the nitrile-based compound may be 1 to 500 parts by weight based on 1 part by weight of the phthalic acid-based compound.
- the water content of the mixture may be less than 6,000 ppm.
- the step (b) may be performed under conditions of 260 to 350 ° C. and 40 to 200 bar.
- the step (b) may be performed for 1 to 500 minutes.
- step (b) separating the product of step (b) may be further included.
- the residual compound separated in step (c) may be reused in step (a).
- a phthalonitrile-based compound may be directly prepared from a phthalic acid-based compound.
- a phthalonitrile-based compound can be produced in an environmentally friendly manner.
- x 1 , x 2 , x 3 or x 4 is “x 1 to x 2 ", “x 1 to x 3 ", “x 1 to x 4 ", “x 2 to x 3 ", The ranges of “x 2 to x 4 ” and “x 3 to x 4 ” may be included.
- supercritical condition means a state that satisfies a condition equal to or higher than a critical point, which is an end point of a phase equilibrium curve. For example, if the critical temperature of compound A is T c and the critical pressure is P c , the supercritical condition of compound A means a state in which the temperature is higher than T c and the pressure is higher than P c .
- a method for producing a phthalonitrile-based compound according to one aspect includes: (a) preparing a mixture containing a phthalic acid-based compound and a nitrile-based compound; and (b) reacting the mixture, wherein step (b) may be performed under supercritical conditions of the nitrile-based compound.
- the phthalic acid-based compound may be a compound having an aromatic ring and two or more carboxy groups.
- the phthalic acid-based compound may be isophthalic acid, terephthalic acid, or a mixture thereof.
- the nitrile-based compound may be at least one selected from the group consisting of hydrogen cyanide, acetonitrile, acrylonitrile, butyronitrile, isobutyronitrile, pivalonitrile, succinonitrile, fumaronitrile, crotonitrile and benzonitrile
- the nitrile-based compound is hydrogen cyanide
- step (b) may be performed under conditions of 183.5° C. or higher and 50 bar or higher.
- step (b) may be performed under conditions of 272° C. or higher and 48.7 bar or higher.
- step (b) may be performed under conditions of 267° C. or higher and 46 bar or higher. If the nitrile-based compound is butyronitrile, step (b) may be performed at 309° C. or higher and 37.8 bar or higher. If the nitrile-based compound is isobutyronitrile, step (b) may be performed at 336° C. or higher and 40 bar or higher. If the nitrile-based compound is pivalonitrile, step (b) may be performed under conditions of 343° C. or higher and 34.4 bar or higher. In addition, the conditions of the step (b) may vary depending on the type of the nitrile-based compound. Accordingly, all of the above conditions are exemplary and do not limit the scope of the present specification.
- the nitrile-based compound may be both a solvent and a reactant.
- step (b) the mixture may be reacted without additional additives such as ammonia, high-concentration oxygen, or a catalyst. Since the reaction of step (b) may be performed without a separate additive, the mixture of step (a) may be composed of a phthalic acid-based compound and a nitrile-based compound, but is not limited thereto. For example, the mixture may be obtained by dissolving a solid phthalic acid-based compound in a nitrile-based compound solvent, but is not limited thereto.
- the content of the nitrile-based compound may be 1 to 500 parts by weight based on 1 part by weight of the phthalic acid-based compound.
- the content of the nitrile-based compound is 1 part by weight, 5 parts by weight, 10 parts by weight, 15 parts by weight, 20 parts by weight, 25 parts by weight, 30 parts by weight, 35 parts by weight based on 1 part by weight of the phthalic acid-based compound.
- the water content of the mixture may be less than 6,000 ppm.
- the moisture content of the mixture can be less than 6,000 ppm, less than 5,000 ppm, less than 4,000 ppm, less than 3,000 ppm, less than 2,000 ppm, less than 1,000 ppm, less than 750 ppm, less than 500 ppm or less than 250 ppm.
- the lower the water content of the mixture the higher the purity of the product.
- the reaction in step (b) may be di-nitrilation through a direct substitution reaction between a carboxy group and a nitrile group, and an example thereof may be expressed as in the following reaction formula.
- R is an aromatic ring such as phenylene
- R' may be an alkyl group having 1 to 20 carbon atoms, for example, a methyl group, an ethyl group, an isopropyl group, a t-butyl group, and the like.
- the reaction may be performed when the temperature and pressure conditions of the step (b) are higher than the critical point of the nitrile-based compound.
- Step (b) may be performed under conditions of 260 to 350° C. and 40 to 200 bar.
- the reaction temperature is 260 ° C, 265 ° C, 270 ° C, 275 ° C, 280 ° C, 285 ° C, 290 ° C, 295 ° C, 300 ° C, 305 ° C, 310 ° C, 315 ° C, 320 ° C , 325°C, 330°C, 335°C, 340°C, 345°C or 350°C.
- the reaction pressure is 40 bar, 45 bar, 50 bar, 55 bar, 60 bar, 65 bar, 70 bar, 75 bar, 80 bar, 85 bar, 90 bar, 95 bar, 100 bar , 105 bar, 110 bar, 115 bar, 120 bar, 125 bar, 130 bar, 135 bar, 140 bar, 145 bar, 150 bar, 155 bar, 160 bar, 165 bar, 170 bar, 175 bar, 180 bar, 185 bar, 190 bar, 195 bar or 200 bar. If the reaction temperature in the step (b) is excessively low, the purity of the product may decrease or the reaction may not be performed, and if the reaction temperature is excessively high, by-product production may increase and the purity may decrease. If the reaction pressure in the step (b) is excessively low, the reaction may not be performed, and if the reaction pressure is excessively high, safety may be deteriorated.
- Step (b) may be performed for 1 to 500 minutes.
- the step (b) is 1 minute, 5 minutes, 10 minutes, 15 minutes, 20 minutes, 25 minutes, 30 minutes, 35 minutes, 40 minutes, 45 minutes, 50 minutes, 55 minutes, 60 minutes, 65 minutes.
- step (c) separating the product of step (b) may be further included.
- the separation in step (c) may be to separate the resulting phthalonitrile-based compound and the remaining compound, and may be performed according to various known methods such as distillation separation.
- the remaining compound may include, for example, at least one selected from the group consisting of unreacted phthalic acid-based compounds, unreacted nitrile-based compounds, and phthalic acid-nitrile-based compounds in which only some of the carboxy groups of the phthalic acid-based compounds have reacted. It is not.
- the residual compound separated in step (c) may be reused in step (a).
- the method for preparing a phthalonitrile-based compound according to an embodiment can be performed without using a separate additive such as a catalyst, so that the remaining compound can be reused without separate purification.
- the purity of the product may be 60% or more, 65% or more, 70% or more, 75% or more, 80% or more, or 85% or more.
- IPA isophthalic acid
- ACN acetonitrile
- Nitrogen was substituted three times at a pressure of 2 to 3 bar inside the reactor. While stirring the reactor at 400 rpm under normal pressure, the internal temperature was raised to 280-300 °C. The reaction was carried out for 4 hours while maintaining the reaction temperature, and the reaction pressure was 70 to 100 bar. After the reaction was completed, the reaction system was cooled to room temperature. Thereafter, the reaction system was distilled under reduced pressure to separate acetonitrile and isophthalonitrile (IPN). Acetonitrile was reused, and isophthalonitrile was analyzed by gas chromatography (GC) to confirm the purity of the product.
- GC gas chromatography
- terephthalic acid TPA
- acetonitrile 100 parts by weight of terephthalic acid (TPA) and 100 parts by weight of acetonitrile were added to a 1,000 mL reactor equipped with a stirrer to form a reaction system. Nitrogen was substituted three times at a pressure of 2 to 3 bar inside the reactor. While stirring the reactor at 400 rpm under atmospheric pressure, the internal temperature was raised to 280-290 °C. The reaction was carried out for 4 hours while maintaining the reaction temperature, and the reaction pressure was 75 to 95 bar. After the reaction was completed, the reaction system was cooled to room temperature. Thereafter, the reaction system was distilled under reduced pressure to separate acetonitrile and terephthalonitrile (TPN). Acetonitrile was reused, and terephthalonitrile was analyzed by gas chromatography to confirm the purity of the product.
- TPA terephthalic acid
- TPN terephthalonitrile
- Example 3 it was confirmed that the purity of the product, isophthalonitrile, increased as the amount of isophthalic acid compared to acetonitrile decreased.
- terephthalonitrile can be produced by a similar reaction mechanism using terephthalic acid instead of isophthalic acid.
- the reaction temperature increased, the purity of the product, terephthalonitrile, increased.
- one embodiment of the present specification does not require a separate catalyst or additives, but solid phthalic acid.
- a phthalonitrile-based compound can be produced from the compound in high yield.
- isophthalic acid or terephthalic acid a phthalic acid-based compound
- acetonitrile an organic nitrile
- the mixture is directly heated without adding a separate catalyst or adduct to form a high-temperature, high-pressure supercritical state (T c : 275 ° C or more, P c : 48 bar or more), and induces an exchange reaction between acid and nitrile to obtain a A talonitrile-based compound was directly produced.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims (11)
- (a) 프탈산계 화합물 및 니트릴계 화합물을 포함하는 혼합물을 제조하는 단계; 및(b) 상기 혼합물을 반응시키는 단계를 포함하고,상기 (b) 단계는 상기 니트릴계 화합물의 초임계 조건 하에서 수행되는, 프탈로니트릴계 화합물의 제조방법.
- 제1항에 있어서,상기 프탈산계 화합물은 이소프탈산, 테레프탈산 또는 이들의 혼합물인, 프탈로니트릴계 화합물의 제조방법.
- 제1항에 있어서,상기 니트릴계 화합물은 시안화수소, 아세토니트릴, 아크릴로니트릴, 부티로니트릴, 이소부티로니트릴, 피발로니트릴, 숙시노니트릴, 푸마로니트릴, 크로토니트릴 및 벤조니트릴로 이루어진 군에서 선택된 하나 이상인, 프탈로니트릴계 화합물의 제조방법.
- 제3항에 있어서,상기 니트릴계 화합물은 아세토니트릴인, 프탈로니트릴계 화합물의 제조방법.
- 제1항에 있어서,상기 (a) 단계의 혼합물은 프탈산계 화합물 및 니트릴계 화합물로 구성된, 프탈로니트릴계 화합물의 제조방법.
- 제1항에 있어서,상기 (a) 단계에서, 상기 니트릴계 화합물의 함량은 상기 프탈산계 화합물 1중량부 기준으로 1~500중량부인, 프탈로니트릴계 화합물의 제조방법.
- 제1항에 있어서,상기 (a) 단계에서, 상기 혼합물의 수분 함량은 6,000 ppm 미만인, 프탈로니트릴계 화합물의 제조방법.
- 제1항에 있어서,상기 (b) 단계는 260~350℃, 40~200 bar의 조건에서 수행되는, 프탈로니트릴계 화합물의 제조방법.
- 제1항에 있어서,상기 (b) 단계는 1~500분 동안 수행되는, 프탈로니트릴계 화합물의 제조방법.
- 제1항에 있어서,상기 (b) 단계 이후,(c) 상기 (b) 단계의 생성물을 분리하는 단계를 더 포함하는, 프탈로니트릴계 화합물의 제조방법.
- 제10항에 있어서,상기 (c) 단계에서 분리된 잔부 화합물을 상기 (a) 단계에 재사용하는, 프탈로니트릴계 화합물의 제조방법.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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CN202180095455.4A CN117677604A (zh) | 2021-07-21 | 2021-07-21 | 邻苯二甲腈类化合物的制备方法 |
CA3214912A CA3214912A1 (en) | 2021-07-21 | 2021-07-21 | Method of preparing phthalonitrile-based compound |
US18/285,999 US20240199536A1 (en) | 2021-07-21 | 2021-07-21 | Method of preparing phthalonitrile-based compound |
JP2023555624A JP2024509965A (ja) | 2021-07-21 | 2021-07-21 | フタロニトリル系化合物の製造方法 |
EP21951006.2A EP4289816A1 (en) | 2021-07-21 | 2021-07-21 | Method for preparing phthalonitrile-based compound |
PCT/KR2021/009452 WO2023003058A1 (ko) | 2021-07-21 | 2021-07-21 | 프탈로니트릴계 화합물의 제조방법 |
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Citations (3)
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US2857416A (en) * | 1957-02-28 | 1958-10-21 | California Research Corp | Preparation of isophthalonitrile and terephthalonitrile |
US3131209A (en) * | 1961-09-11 | 1964-04-28 | Monsanto Chemicals | Preparation of isophthalonitriles and terephthalonitriles |
KR20150034420A (ko) * | 2013-09-26 | 2015-04-03 | 코오롱인더스트리 주식회사 | 프탈로니트릴의 제조방법 |
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- 2021-07-21 WO PCT/KR2021/009452 patent/WO2023003058A1/ko active Application Filing
- 2021-07-21 JP JP2023555624A patent/JP2024509965A/ja active Pending
- 2021-07-21 CN CN202180095455.4A patent/CN117677604A/zh active Pending
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Patent Citations (3)
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US2857416A (en) * | 1957-02-28 | 1958-10-21 | California Research Corp | Preparation of isophthalonitrile and terephthalonitrile |
US3131209A (en) * | 1961-09-11 | 1964-04-28 | Monsanto Chemicals | Preparation of isophthalonitriles and terephthalonitriles |
KR20150034420A (ko) * | 2013-09-26 | 2015-04-03 | 코오롱인더스트리 주식회사 | 프탈로니트릴의 제조방법 |
Non-Patent Citations (2)
Title |
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CANTILLO DAVID, KAPPE C. OLIVER: "Direct Preparation of Nitriles from Carboxylic Acids in Continuous Flow", THE JOURNAL OF ORGANIC CHEMISTRY, AMERICAN CHEMICAL SOCIETY, vol. 78, no. 20, 18 October 2013 (2013-10-18), pages 10567 - 10571, XP055925944, ISSN: 0022-3263, DOI: 10.1021/jo401945r * |
KHUSNUTDINOV R. I.; SHCHADNEVA N. A.; BAYGUZINA A. R.; MAYAKOVA YU. YU.: "Nitrilation of carboxylic acids with acetonitrile catalyzed by molybdenum and vanadium complexes", RUSSIAN JOURNAL OF ORGANIC CHEMISTRY, M A I K NAUKA - INTERPERIODICA, RU, vol. 52, no. 9, 22 October 2016 (2016-10-22), RU , pages 1282 - 1286, XP036082949, ISSN: 1070-4280, DOI: 10.1134/S1070428016090050 * |
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EP4289816A1 (en) | 2023-12-13 |
CA3214912A1 (en) | 2023-01-26 |
JP2024509965A (ja) | 2024-03-05 |
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