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FR2415626A1 - Procede pour la preparation de fluorobenzonitriles par echange d'halogenes dans un solvant - Google Patents

Procede pour la preparation de fluorobenzonitriles par echange d'halogenes dans un solvant

Info

Publication number
FR2415626A1
FR2415626A1 FR7902108A FR7902108A FR2415626A1 FR 2415626 A1 FR2415626 A1 FR 2415626A1 FR 7902108 A FR7902108 A FR 7902108A FR 7902108 A FR7902108 A FR 7902108A FR 2415626 A1 FR2415626 A1 FR 2415626A1
Authority
FR
France
Prior art keywords
solvent
fluorobenzonitriles
halogens
exchange
preparation
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.)
Granted
Application number
FR7902108A
Other languages
English (en)
Other versions
FR2415626B1 (fr
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.)
ISC Chemicals Ltd
Original Assignee
ISC Chemicals 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 ISC Chemicals Ltd filed Critical ISC Chemicals Ltd
Publication of FR2415626A1 publication Critical patent/FR2415626A1/fr
Application granted granted Critical
Publication of FR2415626B1 publication Critical patent/FR2415626B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton

Landscapes

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

Abstract

Perfectionnements dans la production des benzonitriles halogénés ou relatifs à cette production. Dans ce procédé un chlorobenzonitrile ayant un atome de chlore en position ortho ou para par rapport au groupe nitrile est chauffé avec un fluorure de métal alcalin à une température comprise entre 200 degrés et 250 degrés C en présence de sulfolane. Ce procédé permet de récupérer le solvant.
FR7902108A 1978-01-28 1979-01-26 Procede pour la preparation de fluorobenzonitriles par echange d'halogenes dans un solvant Granted FR2415626A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB357678 1978-01-28

Publications (2)

Publication Number Publication Date
FR2415626A1 true FR2415626A1 (fr) 1979-08-24
FR2415626B1 FR2415626B1 (fr) 1983-08-12

Family

ID=9760949

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7902108A Granted FR2415626A1 (fr) 1978-01-28 1979-01-26 Procede pour la preparation de fluorobenzonitriles par echange d'halogenes dans un solvant

Country Status (4)

Country Link
US (1) US4209457A (fr)
DE (1) DE2902877C2 (fr)
FR (1) FR2415626A1 (fr)
NL (1) NL7900615A (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3260500D1 (en) * 1981-08-31 1984-09-06 Ishihara Sangyo Kaisha Process for producing 2,6-difluorobenzonitrile
EP0120575B1 (fr) * 1983-02-18 1989-06-14 Nippon Shokubai Kagaku Kogyo Co., Ltd Composés organiques fluorés
JPS6094919A (ja) * 1983-10-31 1985-05-28 Nippon Shokubai Kagaku Kogyo Co Ltd 有機フツ素化物の製法
US4952719A (en) * 1984-10-15 1990-08-28 Occidental Chemical Corporation Process for the preparation of halo aromatic compounds
US5214187A (en) * 1988-06-21 1993-05-25 Basf Aktiengesellschaft Benzonitriles, benzaldehydes and benzyl alcohols
US5153350A (en) * 1991-05-16 1992-10-06 Braish Tamim F Process for preparing 3,4,6-trifluorophithalonitrile
ES2098799T3 (es) * 1993-01-23 1997-05-01 Hoechst Ag 2,3-difluoro-6-nitro-benzonitrilo y 2-cloro-5,6-difluoro-benzonitrilo, procedimiento para su preparacion y su utilizacion para la preparacion de acido 2,3,6-trifluoro-benzoico.
US5502235A (en) * 1994-12-28 1996-03-26 Dowelanco Solventless process for making 2,6 difluorobenzonitrile
US5824827A (en) * 1996-11-22 1998-10-20 Albemarle Corporation Halogen exchange reactions
WO1998022413A1 (fr) 1996-11-22 1998-05-28 Albemarle Corporation Reactions de substitution d'halogenes et leurs utilisations
US5789631A (en) * 1996-11-25 1998-08-04 Albemarle Corporation Production of perhalobenzenes
US5965781A (en) * 1997-11-21 1999-10-12 Albemarle Corporation Catalysis in halogen exchange reactions
CN1097482C (zh) * 2000-12-25 2003-01-01 化学工业部天津化工研究设计院 一种邻(对)甲基苯腈催化剂的制备方法
CN100427462C (zh) * 2006-11-27 2008-10-22 浙江大学 2,4-二氟苯腈的制备工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1359410A (fr) * 1962-04-04 1964-04-24 Nat Smelting Co Ltd Procédé de préparation de nitriles aromatiques fluorés
GB1026290A (en) * 1964-03-17 1966-04-14 Robert Neville Haszeldine Aromatic fluorine compounds
US3975424A (en) * 1974-07-04 1976-08-17 Agency Of Industrial Science & Technology Method for manufacture of tetrafluoroterephthalonitrile

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL129620C (fr) * 1963-04-01
GB1259173A (fr) * 1968-03-28 1972-01-05

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1359410A (fr) * 1962-04-04 1964-04-24 Nat Smelting Co Ltd Procédé de préparation de nitriles aromatiques fluorés
GB1026290A (en) * 1964-03-17 1966-04-14 Robert Neville Haszeldine Aromatic fluorine compounds
US3975424A (en) * 1974-07-04 1976-08-17 Agency Of Industrial Science & Technology Method for manufacture of tetrafluoroterephthalonitrile

Also Published As

Publication number Publication date
DE2902877C2 (de) 1983-05-05
US4209457A (en) 1980-06-24
NL7900615A (nl) 1979-07-31
DE2902877A1 (de) 1979-08-23
FR2415626B1 (fr) 1983-08-12

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Legal Events

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ST Notification of lapse