ES2089644T3 - Procedimiento para la preparacion de acido tetrafluoro-ftalico y/o anhidrido de acido tetrafluoro-ftalico. - Google Patents

Procedimiento para la preparacion de acido tetrafluoro-ftalico y/o anhidrido de acido tetrafluoro-ftalico.

Info

Publication number
ES2089644T3
ES2089644T3 ES93110713T ES93110713T ES2089644T3 ES 2089644 T3 ES2089644 T3 ES 2089644T3 ES 93110713 T ES93110713 T ES 93110713T ES 93110713 T ES93110713 T ES 93110713T ES 2089644 T3 ES2089644 T3 ES 2089644T3
Authority
ES
Spain
Prior art keywords
tetrafluoro
rent
phthalic acid
group
chlorine
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.)
Expired - Lifetime
Application number
ES93110713T
Other languages
English (en)
Inventor
Ralf Dr Pfirmann
Theodor Dr Papenfuhs
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
Application granted granted Critical
Publication of ES2089644T3 publication Critical patent/ES2089644T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/44—Iso-indoles; Hydrogenated iso-indoles
    • C07D209/48—Iso-indoles; Hydrogenated iso-indoles with oxygen atoms in positions 1 and 3, e.g. phthalimide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Indole Compounds (AREA)
  • Furan Compounds (AREA)

Abstract

EL PRESENTE INVENTO CONCIERNE A UN PROCEDIMIENTO DE PREPARACION DE ACIDO TETRAFLUOROFTALICO Y/O DEL ANHIDRIDO DEL ACIDO TETRAFLUOROFTALICO, HACIENDO REACCIONAR CON AGUA UN COMPUESTO DE FORMULA GENERAL (FOR) EN LA QUE X SUSTITUYE A UN RESTO (FOR), EVENTUALMENTE MONO POR FLUOR Y/O CLORO Y/O GRUPOS ALQUILO CON 1 A 4 ATOMOS DE CARBONO, O A UN RESTO (FOR), EN EL QUE R1 Y R2 SON IGUALES O DISTINTOS, O SIGNIFICAN UN ATOMO DE HIDROGENO, UN GRUPO ALQUILO CON 1 A 10 ATOMOS DE CARBONO, UN GRUPO CO-ALQUILO CON 1 A 6 ATOMOS DE CARBONO EN EL RESTO ALQUILO, UN GRUPO ARILO, EVENTUALMENTE MONO /O CLORO Y/O GRUPOS ALQUILO CON 1 A 4 ATOMOS DE CARBONO, O UN GRUPO COARILO, O R1 Y R2 FORMAN CONJUNTAMENTE UN RESTO DE FORMULA GENERAL (FOR), EN DONDE R3 SIGNIFICA UN ATOMO DE HIDROGENO, UN ATOMO DE CLORO O UN ATMO DE FLUOR, Y ELIMINANDO POR DESTILACION AZEOTROPICA EL AGUA AUN PRESENTE, O EXTRAYENDO EL ACIDO TETRAFLUOROFTALICO Y/O SU ANHIDRIDO CON UN DISOLVENTE O MEZCLA DE DISOLVENTES INSOLUBLES EN AGUA.
ES93110713T 1992-07-10 1993-07-05 Procedimiento para la preparacion de acido tetrafluoro-ftalico y/o anhidrido de acido tetrafluoro-ftalico. Expired - Lifetime ES2089644T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4222719 1992-07-10

Publications (1)

Publication Number Publication Date
ES2089644T3 true ES2089644T3 (es) 1996-10-01

Family

ID=6462933

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93110713T Expired - Lifetime ES2089644T3 (es) 1992-07-10 1993-07-05 Procedimiento para la preparacion de acido tetrafluoro-ftalico y/o anhidrido de acido tetrafluoro-ftalico.

Country Status (6)

Country Link
US (1) US5384413A (es)
EP (1) EP0578165B1 (es)
JP (1) JP3538439B2 (es)
CA (1) CA2100198A1 (es)
DE (1) DE59302798D1 (es)
ES (1) ES2089644T3 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3191489B2 (ja) * 1993-05-27 2001-07-23 三菱化学株式会社 ハロゲン化無水フタル酸の製造法
EP0877011A1 (en) * 1994-02-23 1998-11-11 Asahi Glass Company Ltd. Processes for producing tetra-fluorophthalic anhydride and fluorobenzoic acids
DE19515986A1 (de) * 1995-05-02 1996-11-07 Hoechst Ag Verfahren zur Herstellung von Salzen substituierter oder unsubstituierter Phthalsäuren
CN1068867C (zh) * 1998-07-09 2001-07-25 华东理工大学 2,3,4,5－四氟苯甲酸的制备方法
CN105693507B (zh) * 2016-03-18 2018-04-06 浙江大学 3,4,5,6‑四氟邻苯二甲酸的合成方法
CN107778161A (zh) * 2016-10-29 2018-03-09 江苏沙星化工有限公司 一种制备2,3,4,5‑四氟苯甲酸的工艺方法
CN107778160B (zh) * 2016-10-29 2021-06-18 江苏沙星化工有限公司 一种3,4,5,6-四氟邻苯二甲酸的制备方法
WO2020164217A1 (en) 2019-02-15 2020-08-20 Fujian Yongjing Technology Co., Ltd New process for manufacture of fluoroaryl compounds and derivatives
CN113461646B (zh) * 2021-08-03 2023-05-23 哈尔滨工业大学（威海） 一种联苯二酐异构体的制备及分离方法
CN114292681B (zh) * 2021-12-28 2024-03-19 安阳市锐普农化有限责任公司 一种新型烟剂引燃方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8324902D0 (en) * 1983-09-16 1983-10-19 Ici Plc Chemical process
US4782180A (en) * 1985-09-09 1988-11-01 Warner-Lambert Company Process for tetrafluorobenzoic acid
US4769493A (en) * 1986-08-18 1988-09-06 Sds Biotech K.K. Process for producing tetrafluorophthalic acid
JPS63258442A (ja) * 1986-08-18 1988-10-25 Sds Biotech Kk テトラフルオロフタル酸の製造方法
US5086188A (en) * 1991-01-16 1992-02-04 Occidental Chemical Corporation Preparation of 3,5-dichlorophthalic acid and 3,5-dichlorophthalic anhydride
ES2070545T3 (es) * 1991-04-25 1995-06-01 Hoechst Ag Procedimiento para la preparacion de acido 2,3,4,5-tetrafluoro-benzoico.

Also Published As

Publication number Publication date
EP0578165B1 (de) 1996-06-05
EP0578165A1 (de) 1994-01-12
DE59302798D1 (de) 1996-07-11
CA2100198A1 (en) 1994-01-11
JP3538439B2 (ja) 2004-06-14
JPH06184046A (ja) 1994-07-05
US5384413A (en) 1995-01-24

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