EP0531339A1 - Procede de production de 1,4-bis-(4-fluorobenzoyl)-benzol - Google Patents

Procede de production de 1,4-bis-(4-fluorobenzoyl)-benzol

Info

Publication number
EP0531339A1
EP0531339A1 EP91909454A EP91909454A EP0531339A1 EP 0531339 A1 EP0531339 A1 EP 0531339A1 EP 91909454 A EP91909454 A EP 91909454A EP 91909454 A EP91909454 A EP 91909454A EP 0531339 A1 EP0531339 A1 EP 0531339A1
Authority
EP
European Patent Office
Prior art keywords
fluorobenzene
fluorobenzoyl
chloride
benzene
terephthaloyl chloride
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP91909454A
Other languages
German (de)
English (en)
Inventor
Walter Gilb
Georg GRÖTSCH
Hans Schubert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0531339A1 publication Critical patent/EP0531339A1/fr
Withdrawn legal-status Critical Current

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.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Selon un procédé de production de 1,4-bis-(4-fluorobenzoyl)-benzol par réaction de chlorure de téréphtaloyle avec du fluorobenzol en présence de chlorure ou de bromure d'aluminium, on ajoute du chlorure ou du bromure d'aluminium à un mélange de chlorure de téréphtaloyle et de fluorobenzol à des températures comprises entre 25 °C et 68 °C environ et on fait réagir le mélange à ces températures.
EP91909454A 1990-05-25 1991-05-18 Procede de production de 1,4-bis-(4-fluorobenzoyl)-benzol Withdrawn EP0531339A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4016895 1990-05-25
DE4016895A DE4016895A1 (de) 1990-05-25 1990-05-25 Verfahren zur herstellung von 1,4-bis-(4-fluorbenzoyl)-benzol

Publications (1)

Publication Number Publication Date
EP0531339A1 true EP0531339A1 (fr) 1993-03-17

Family

ID=6407193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91909454A Withdrawn EP0531339A1 (fr) 1990-05-25 1991-05-18 Procede de production de 1,4-bis-(4-fluorobenzoyl)-benzol

Country Status (8)

Country Link
US (1) US5300693A (fr)
EP (1) EP0531339A1 (fr)
JP (1) JPH05506664A (fr)
AU (1) AU7865691A (fr)
BR (1) BR9106498A (fr)
CA (1) CA2083715A1 (fr)
DE (1) DE4016895A1 (fr)
WO (1) WO1991018862A1 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018115035A1 (fr) 2016-12-21 2018-06-28 Solvay Specialty Polymers Usa, Llc Polymères de poly(éther cétone cétone), procédés de synthèse et compositions de polymère correspondants et articles fabriqués à partir de celles-ci
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
JP7271422B2 (ja) * 2016-12-21 2023-05-11 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 ビス（ベンゾイル）ベンゼンを含むモノマー組成物中の金属の濃度を低減させるための方法
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 (fr) 2016-12-21 2018-06-28 Solvay Specialty Polymers Usa, Llc Polymères de poly(éther cétone cétone), procédés de synthèse et compositions de polymère correspondants et articles fabriqués à partir de celles-ci
WO2018115034A1 (fr) 2016-12-21 2018-06-28 Solvay Specialty Polymers Usa, Llc Procédé pour diminuer la concentration d'un métal dans une composition monomère comprenant du bis(benzoyle)benzène
CN110809595B (zh) 2017-06-30 2024-03-08 索尔维特殊聚合物美国有限责任公司 具有低挥发物含量的聚(醚酮酮)聚合物粉末
US11879036B2 (en) 2018-06-21 2024-01-23 Solvay Specialty Polymers Usa, Llc Poly(ether ketone ketone) (PEKK) polymer and composites
CN113015611A (zh) 2018-11-13 2021-06-22 索尔维特殊聚合物美国有限责任公司 使用选择性激光烧结制造三维物体的增材制造方法
JP2022518837A (ja) 2019-01-31 2022-03-16 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）（ｐｅｋｋ）を粉砕する方法
JP7353011B2 (ja) 2019-02-15 2023-09-29 フジアン ヨンジン テクノロジー カンパニー リミテッド フッ素化ベンゼン、フッ素化ベンゾフェノン、およびその誘導体の新しい製造方法
WO2020164218A1 (fr) 2019-02-15 2020-08-20 Fujian Yongjing Technology Co., Ltd Nouveau procédé de réaction de friedel-crafts et catalyseur associé
CN113966353B (zh) 2019-06-20 2024-04-05 索尔维特殊聚合物美国有限责任公司 包含与金属基底接触的PEEK-PEoEK共聚物组合物的聚合物-金属接合件
WO2020254096A1 (fr) 2019-06-20 2020-12-24 Solvay Specialty Polymers Usa, Llc Copolymère de peek-peodek et procédé de fabrication du copolymère
WO2020254097A1 (fr) 2019-06-20 2020-12-24 Solvay Specialty Polymers Usa, Llc Procédé de fabrication d'un copolymère peek-peoek et copolymère obtenu au moyen du procédé
EP3783047A1 (fr) 2019-08-20 2021-02-24 Solvay Specialty Polymers USA, LLC. Copolymère peek-peodek et son procédé de fabrication
EP3994200B1 (fr) 2019-07-01 2023-08-09 Solvay Specialty Polymers USA, LLC. Poudre de copolymère peek-peoek et procédé de préparation de la poudre
EP3997175A1 (fr) 2019-07-12 2022-05-18 Solvay Specialty Polymers USA, LLC. Matériau composite à matrice thermoplastique, renforcé par des fibres
KR20230022884A (ko) 2020-06-11 2023-02-16 솔베이 스페셜티 폴리머즈 유에스에이, 엘.엘.씨. 폴리(에테르케톤케톤) 중합체의 배합물
US20230331979A1 (en) 2020-06-11 2023-10-19 Solvay Specialty Polymers Usa, Llc Fiber reinforced thermoplastic matrix composite material
WO2022152653A1 (fr) 2021-01-12 2022-07-21 Solvay Specialty Polymers Usa, Llc Films de collage
AU2022222330A1 (en) 2021-02-22 2023-08-17 Cytec Industries Inc Films for multiple layers assemblies
WO2022175558A1 (fr) 2021-02-22 2022-08-25 Solvay Specialty Polymers Usa, Llc Films pour ensembles de couches multiples

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES8700647A1 (es) * 1984-10-11 1986-11-16 Raychem Corp Procedimiento para la preparacion de un compuesto carbonilo aromatico
DE3531837A1 (de) * 1985-09-06 1987-03-19 Basf Ag Bis-(fluorbenzoyl)-verbindungen
GB8623510D0 (en) * 1986-09-30 1986-11-05 Raychem Ltd Aryl carbonyl compounds
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)

* Cited by examiner, † Cited by third party
Title
See references of WO9118862A1 *

Also Published As

Publication number Publication date
WO1991018862A1 (fr) 1991-12-12
JPH05506664A (ja) 1993-09-30
CA2083715A1 (fr) 1991-11-26
AU7865691A (en) 1991-12-31
US5300693A (en) 1994-04-05
DE4016895A1 (de) 1991-11-28
BR9106498A (pt) 1993-05-25

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