ES2118566T3 - Proceso de descarboxilacion. - Google Patents

Proceso de descarboxilacion.

Info

Publication number
ES2118566T3
ES2118566T3 ES95908344T ES95908344T ES2118566T3 ES 2118566 T3 ES2118566 T3 ES 2118566T3 ES 95908344 T ES95908344 T ES 95908344T ES 95908344 T ES95908344 T ES 95908344T ES 2118566 T3 ES2118566 T3 ES 2118566T3
Authority
ES
Spain
Prior art keywords
liquid
decarboxylation process
dicarboxilico
acid
halogenated aromatic
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
ES95908344T
Other languages
English (en)
Inventor
Stewart Reid Korn
Michael Scott Howarth
Gordon Jamieson
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.)
Syngenta Ltd
Original Assignee
Zeneca Ltd
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 Zeneca Ltd filed Critical Zeneca Ltd
Application granted granted Critical
Publication of ES2118566T3 publication Critical patent/ES2118566T3/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
    • C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/377—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
    • C07C51/38—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups by decarboxylation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/08—Preparation of carboxylic acids or their salts, halides or anhydrides from nitriles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treating Waste Gases (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

UN PROCESO PARA LA MONODESCARBOXILACION DE UN ACIDO DICARBOXILICO AROMATICO HALOGENADO O UN DERIVADO DEL MISMO, EN EL CUAL EL ACIDO DICARBOXILICO AROMATICO HALOGENADO O UN DERIVADO DEL MISMO ES CALENTADO EN UN MEDIO LIQUIDO, CARACTERIZADO PORQUE EL MEDIO LIQUIDO ES UN MEDIO LIQUIDO POLAR APROTICO.
ES95908344T 1994-03-08 1995-02-17 Proceso de descarboxilacion. Expired - Lifetime ES2118566T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9404574A GB9404574D0 (en) 1994-03-08 1994-03-08 Decarboxylation process

Publications (1)

Publication Number Publication Date
ES2118566T3 true ES2118566T3 (es) 1998-09-16

Family

ID=10751560

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95908344T Expired - Lifetime ES2118566T3 (es) 1994-03-08 1995-02-17 Proceso de descarboxilacion.

Country Status (8)

Country Link
US (1) US5792887A (es)
EP (1) EP0749409B1 (es)
JP (1) JPH09509954A (es)
AT (1) ATE167659T1 (es)
DE (1) DE69503117T2 (es)
ES (1) ES2118566T3 (es)
GB (1) GB9404574D0 (es)
WO (1) WO1995024373A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10016723A1 (de) 2000-04-04 2001-10-11 Bayer Ag Verfahren zur Herstellung von Dialkoxythiophenen und Alkylendioxythiophenen
CN101370759B (zh) 2006-01-24 2012-06-27 住友化学株式会社 制备卤素取代的苯二甲醇的方法
WO2012115984A2 (en) 2011-02-21 2012-08-30 Felice Kristopher M Polyurethane dispersions and methods of making and using same
KR101507696B1 (ko) 2011-06-10 2015-04-07 크리스토퍼 엠. 펠리체 투명 코팅, 아크릴 코팅
CN109704916B (zh) * 2017-10-25 2022-05-24 江苏扬农化工股份有限公司 一种取代芳香醇的合成工艺

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122190A (en) * 1982-05-27 1984-01-11 Ici Plc Decarboxylation of halogenated benzoic acids or esters
US4782180A (en) * 1985-09-09 1988-11-01 Warner-Lambert Company Process for tetrafluorobenzoic acid
DE3621707A1 (de) * 1986-06-28 1988-01-07 Bayer Ag Verfahren zur herstellung von 2,3,5,6-tetrafluorbenzoesaeure und die neuen verbindungen 2,3,5,6-tetrachlor-4-trifluormethyl-benzoylchlorid und 2,3,5,6-tetrafluor-4-trifluormethyl-benzoylfluorid
GB8919678D0 (en) * 1989-08-31 1989-10-11 Ici Plc Fluorobenzene derivatives
US4935541A (en) * 1989-11-20 1990-06-19 Occidental Chemical Corporation Preparation of 2,4,5-trifluorobenzoic acid by decarboxylation of 3,4,6-trifluorophthalic anhydride
US5233085A (en) * 1989-11-20 1993-08-03 Occidental Chemical Corporation Preparation of 2,4,5-trifluorobenzoic acid by decarboxylation of 3,4,6-trifluorophthalic acid
US4937377A (en) * 1989-11-20 1990-06-26 Occidental Chemical Corporation Preparation of 3,4-difluorobenzoic acid by the decarboxylation of 4,5-difluorophthalic anhydride or 4,5-difluorophthalic acid

Also Published As

Publication number Publication date
EP0749409B1 (en) 1998-06-24
DE69503117T2 (de) 1998-10-29
DE69503117D1 (de) 1998-07-30
GB9404574D0 (en) 1994-04-20
EP0749409A1 (en) 1996-12-27
WO1995024373A1 (en) 1995-09-14
ATE167659T1 (de) 1998-07-15
US5792887A (en) 1998-08-11
JPH09509954A (ja) 1997-10-07

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