WO1991018862A1 - Verfahren zur herstellung von 1,4-bis-(4-fluorbenzoyl)-benzol - Google Patents
Verfahren zur herstellung von 1,4-bis-(4-fluorbenzoyl)-benzol Download PDFInfo
- Publication number
- WO1991018862A1 WO1991018862A1 PCT/EP1991/000929 EP9100929W WO9118862A1 WO 1991018862 A1 WO1991018862 A1 WO 1991018862A1 EP 9100929 W EP9100929 W EP 9100929W WO 9118862 A1 WO9118862 A1 WO 9118862A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluorobenzene
- chloride
- fluorobenzoyl
- benzene
- terephthaloyl chloride
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
- C07C49/80—Ketones containing a keto group bound to a six-membered aromatic ring containing halogen
- C07C49/813—Ketones containing a keto group bound to a six-membered aromatic ring containing halogen polycyclic
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
- C07C45/46—Friedel-Crafts reactions
Definitions
- the invention relates to an improved process for the preparation of 1,4-Bi ⁇ - (4-fluorobenzoyl) benzene in high yield and purity by reacting terephthaloyl chloride with fluorobenzene while metering in aluminum chloride or aluminum bromide at reaction temperatures below 70 ° C.
- 1,4-bis (4-luorbenzoyl) benzene is a valuable starting material for the production of high-performance plastics, such as polyether ketosulfones, polyether ketones or composite materials.
- Friedel-Crafts catalysts such as hydrogen fluoride / boron trifluoride mixtures (DE-OS 38 06 656) or polyfluorinated alkanesulfonic acids (DE-OS 38 07 623), have aluminum chloride as a catalyst for the preparation of 1,4-bis (4 - luorbenzoyl) benzene from fluorobenzene and terephthaloyl chloride is still of great importance since it is inexpensive, relatively easy to handle and has been extensively investigated with regard to its toxicological and ecological properties.
- DE-OS 35 31 837 also describes the preparation of 1,4-bis (4-fluorobenzoyl) benzene from fluorobenzene and terephthaloyl chloride using AICI3.
- Example 1 there, practically the same molar ratios are used as in GB-PS 1 139 296 mentioned above.
- aluminum chloride is suspended in fluorobenzene and then terephthaloyl chloride, dissolved in fluorobenzene, is metered in, the temperature of the reaction mixture being 60 ° C rises to 85 ° C (boiling temperature of the fluorobenzene).
- EP-OS 178 184 see in particular Examples 4 to 6
- EP-OS 262 919 an attempt is made to solve the problems indicated by using the Lewis acid used as a catalyst in a relatively large excess and its activity is modified by adding a Lewis base.
- the isolated yields, with a maximum of 87%, are technically extremely unsatisfactory.
- the temperature of ⁇ 0 ° C applied at the beginning of the reaction over at least approx.% Day requires a very high amount of cooling energy.
- the long reaction times of at least approx. 1 day are extremely disadvantageous for technical use.
- the starting product used for this must have not only a high general purity but also an isomeric purity of> 99.5% .
- the proportion of secondary components contained in the crude product is as low as possible and a very high yield can be achieved, as well as the smallest possible amounts of AICI3 and Auxiliary components must be used.
- the invention therefore relates to a process for the preparation of 1,4-bis (4-fluorobenzoyl) benzene from terephthaloyl chloride and fluorobenzene in the presence of aluminum chloride or aluminum bromide at temperatures below 70 ° C.
- the fluorobenzene is usually used in an amount of about 7 to about 20 mol, preferably about 10 to about 16 mol, per mol of terephthaloyl chloride. However, it is also possible to use a higher excess of fluorobenzene, but this is no longer advantageous from an economic point of view. The excess fluorobenzene can be recovered quantitatively.
- A1C1 3 or AlBr 3 is used in an amount of approximately 1.8 to approximately 3 mol, preferably approximately 1.9 to approximately 2.7 mol and particularly preferably approximately 2.0 to 2.5 mol per mol of terephthaloyl chloride.
- the reaction is carried out with the exclusion of atmospheric moisture, for example by superimposition with a protective gas atmosphere, at normal pressure, under reduced pressure (vacuum) or increased pressure.
- the processing is carried out in a manner known per se by hydrolysis of the reaction mixture, preferably by pressing the reaction mixture into water and subsequent distillative separation of the excess fluorobenzene and separation of the solid reaction product from the water phase.
- hydrolysis preferably by pressing the reaction mixture into water and subsequent distillative separation of the excess fluorobenzene and separation of the solid reaction product from the water phase.
- the particular advantage of the process according to the invention is that 1,4-bi- (4-fluorobenzoyl) benzene is already in a very high purity as a crude product (the melting point at> 220 ° C is already approx. 1 ° C higher than that after) US Pat. No. 4,820,791 obtained after recrystallization) and practically quantitative yield.
- the content of 1- (2-fluorobenzoyl) -4- (4-fluorobenzoyl) benzene at a reaction temperature of 60 ° C. is only about 2.2% by weight instead of 4.4% by weight when carried out under reflux conditions.
- Auxiliary reagents such as the addition of Lewis bases to the catalyst or the use of solvents are not necessary.
- the fluorobenzene recovered by simple distillation or after phase separation can be reused directly after drying.
- a complex rectification of the aromatic is not necessary, since practically no chlorobenzene or bromobenzene has formed during the reaction. During recycling, therefore, the fluorobenzene cannot be enriched with chlorobenzene or bromobenzene.
- the formation of 1- (4-chlorobenzoyl) -4- (4-fluorobenzoyl) benzene and 1,4-Bi ⁇ - (4-chlorobenzoyl) benzene or the corresponding monobromine and dibromo compounds can thus be excluded. If one considers the results of EP-OS 178 184 (cf.
- Example 7 conversion into dichloroethane as solvent in the presence of AICI3 at -15 ° C. to room temperature, reaction time approx. 1 day, yield of 1,4-Bi ⁇ - (4- fluorobenzoyl) benzene 83%, purity according to ⁇ H-NMR 80%), it must be particularly surprising that by dosing the aluminum chloride while lowering the reaction temperature to values below about 70 ° C the proportion of by-products 1- (2 -Fluorobenzoyl) - 4- (4-fluorobenzoyl) benzene and 1- (4-chlorobenzoyl) -4- (luorbenzoyl) benzene in the AICI3 process is significantly reduced and a practically quantitative yield is nevertheless achieved.
- the process according to the invention provides a cost-effective process for the production of 1,4-bis- (4-fluorobenzoyl) benzene, since the crude product is obtained in high purity in almost quantitative yield. Even on a technical scale, the synthesis of the product in question can be carried out without high and therefore expensive safety-related expenditure (cf. HF / BF3 process according to DE-OS 38 06 656 and poly-luoralkanesulfonic acid process according to DE-OS 38 07 623). The rectification of fluorobenzene which is also cost-intensive before recycling can also be omitted.
- reaction products in addition to fluorobenzene 38 fl%, FID
- chlorobenzene 37 fl%, FID
- Example 8 a crude product is obtained from 2-fluorobenzoyl chloride and toluene with AICI3 in quantitative yield, according to GC 90% of 2-fluoro-4'-methylbenzophenone, 8% of the 2,2'-isomer and 2% of the 2,3 ' Contains isomers. Recrystallization from ethanol gives 2-fluoro-4'-methylbenzophenone with a melting point of 73 ° C to 74 ° C.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP91509088A JPH05506664A (ja) | 1990-05-25 | 1991-05-18 | 1,4―ビス―(4―フルオロベンゾイル)―ベンゼンの製造方法 |
US07/949,526 US5300693A (en) | 1990-05-25 | 1991-05-18 | Process for the preparation of 1,4-bis(4-fluorobenzoyl)-benzene |
BR919106498A BR9106498A (pt) | 1990-05-25 | 1991-05-18 | Processo para a producao de 1,4-bis-(4-fluorbenzoil)-benzeno |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4016895A DE4016895A1 (de) | 1990-05-25 | 1990-05-25 | Verfahren zur herstellung von 1,4-bis-(4-fluorbenzoyl)-benzol |
DEP4016895.6 | 1990-05-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991018862A1 true WO1991018862A1 (de) | 1991-12-12 |
Family
ID=6407193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1991/000929 WO1991018862A1 (de) | 1990-05-25 | 1991-05-18 | Verfahren zur herstellung von 1,4-bis-(4-fluorbenzoyl)-benzol |
Country Status (8)
Country | Link |
---|---|
US (1) | US5300693A (de) |
EP (1) | EP0531339A1 (de) |
JP (1) | JPH05506664A (de) |
AU (1) | AU7865691A (de) |
BR (1) | BR9106498A (de) |
CA (1) | CA2083715A1 (de) |
DE (1) | DE4016895A1 (de) |
WO (1) | WO1991018862A1 (de) |
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WO2018115034A1 (en) | 2016-12-21 | 2018-06-28 | Solvay Specialty Polymers Usa, Llc | Method for decreasing the concentration of a metal in a monomer composition comprising bis(benzoyl)benzene |
CN110248984B (zh) | 2016-12-21 | 2022-03-04 | 索尔维特殊聚合物美国有限责任公司 | 聚(醚酮酮)聚合物、相应的合成方法和聚合物组合物以及由其制成的制品 |
CN114716665B (zh) | 2016-12-21 | 2024-01-09 | 索尔维特殊聚合物美国有限责任公司 | 聚(醚酮酮)聚合物、相应的合成方法和聚合物组合物以及由其制成的制品 |
WO2018115033A1 (en) | 2016-12-21 | 2018-06-28 | Solvay Specialty Polymers Usa, Llc | Poly(ether ketone ketone) polymers, corresponding synthesis methods and polymer compositions and articles made therefrom |
CN110267935B (zh) * | 2016-12-21 | 2022-11-25 | 索尔维特殊聚合物美国有限责任公司 | 用于降低包含双(苯甲酰基)苯的单体组合物中的金属浓度的方法 |
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WO2019243433A1 (en) | 2018-06-21 | 2019-12-26 | Solvay Specialty Polymers Usa, Llc | Poly(ether ketone ketone) (pekk) polymer and composites |
US20210394438A1 (en) | 2018-11-13 | 2021-12-23 | Solvay Specialty Polymers Usa, Llc | Additive manufacturing method for making a three-dimensional object using selective laser sintering |
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WO2020164291A1 (en) | 2019-02-15 | 2020-08-20 | Fujian Yongjing Technology Co., Ltd | New process for manufacture of fluorinated benzenes and fluorinated benzophenones, and derivatives thereof |
EP3986955A1 (de) | 2019-06-20 | 2022-04-27 | Solvay Specialty Polymers USA, LLC. | Peek-peodek-copolymer und verfahren zur herstellung des copolymers |
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WO2021001132A1 (en) | 2019-07-01 | 2021-01-07 | Solvay Specialty Polymers Usa, Llc | PEEK-PEoEK COPOLYMER POWDER AND METHOD OF PREPARING THE POWDER |
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JP2023529477A (ja) | 2020-06-11 | 2023-07-10 | ソルベイ スペシャルティ ポリマーズ ユーエスエー, エルエルシー | ポリ(エーテルケトンケトン)ポリマーのブレンド |
WO2022152653A1 (en) | 2021-01-12 | 2022-07-21 | Solvay Specialty Polymers Usa, Llc | Bonding films |
AU2022224447A1 (en) | 2021-02-22 | 2023-08-24 | Cytec Industries Inc. | Films for multiple layers assemblies |
AU2022222330A1 (en) | 2021-02-22 | 2023-08-17 | Cytec Industries Inc | Films for multiple layers assemblies |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0178184A1 (de) * | 1984-10-11 | 1986-04-16 | RAYCHEM CORPORATION (a Delaware corporation) | Herstellung von aromatischen Carbonylverbindungen |
DE3531837A1 (de) * | 1985-09-06 | 1987-03-19 | Basf Ag | Bis-(fluorbenzoyl)-verbindungen |
EP0262919A2 (de) * | 1986-09-30 | 1988-04-06 | Raychem Limited | Verfahren zur Herstellung von Arylcarbonylverbindungen |
US4820791A (en) * | 1987-02-05 | 1989-04-11 | United States Of America | Polyimides containing carbonyl and ether connecting groups |
DE3806656A1 (de) * | 1988-03-02 | 1989-09-14 | Hoechst Ag | Verfahren zur herstellung von halogenhaltigen aromatischen verbindungen |
DE3807623A1 (de) * | 1988-03-09 | 1989-09-21 | Hoechst Ag | Verfahren zur herstellung von halogenhaltigen aromatischen verbindungen |
-
1990
- 1990-05-25 DE DE4016895A patent/DE4016895A1/de not_active Withdrawn
-
1991
- 1991-05-18 AU AU78656/91A patent/AU7865691A/en not_active Abandoned
- 1991-05-18 US US07/949,526 patent/US5300693A/en not_active Expired - Fee Related
- 1991-05-18 JP JP91509088A patent/JPH05506664A/ja active Pending
- 1991-05-18 EP EP91909454A patent/EP0531339A1/de not_active Withdrawn
- 1991-05-18 WO PCT/EP1991/000929 patent/WO1991018862A1/de not_active Application Discontinuation
- 1991-05-18 BR BR919106498A patent/BR9106498A/pt not_active Application Discontinuation
- 1991-05-18 CA CA002083715A patent/CA2083715A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0178184A1 (de) * | 1984-10-11 | 1986-04-16 | RAYCHEM CORPORATION (a Delaware corporation) | Herstellung von aromatischen Carbonylverbindungen |
DE3531837A1 (de) * | 1985-09-06 | 1987-03-19 | Basf Ag | Bis-(fluorbenzoyl)-verbindungen |
EP0262919A2 (de) * | 1986-09-30 | 1988-04-06 | Raychem Limited | Verfahren zur Herstellung von Arylcarbonylverbindungen |
US4820791A (en) * | 1987-02-05 | 1989-04-11 | United States Of America | Polyimides containing carbonyl and ether connecting groups |
DE3806656A1 (de) * | 1988-03-02 | 1989-09-14 | Hoechst Ag | Verfahren zur herstellung von halogenhaltigen aromatischen verbindungen |
DE3807623A1 (de) * | 1988-03-09 | 1989-09-21 | Hoechst Ag | Verfahren zur herstellung von halogenhaltigen aromatischen verbindungen |
Non-Patent Citations (1)
Title |
---|
Patent Abstracts of Japan, unexamined applications, C Field, Band 11, Nr. 317, 15. Oktober 1987, The Patent Office Japanese Govern * |
Also Published As
Publication number | Publication date |
---|---|
CA2083715A1 (en) | 1991-11-26 |
US5300693A (en) | 1994-04-05 |
JPH05506664A (ja) | 1993-09-30 |
DE4016895A1 (de) | 1991-11-28 |
BR9106498A (pt) | 1993-05-25 |
AU7865691A (en) | 1991-12-31 |
EP0531339A1 (de) | 1993-03-17 |
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