ES2179517T3 - Procedimiento para la obtencion de 2,4,5-trifluor-benzonitrilo. - Google Patents

Procedimiento para la obtencion de 2,4,5-trifluor-benzonitrilo.

Info

Publication number
ES2179517T3
ES2179517T3 ES98932174T ES98932174T ES2179517T3 ES 2179517 T3 ES2179517 T3 ES 2179517T3 ES 98932174 T ES98932174 T ES 98932174T ES 98932174 T ES98932174 T ES 98932174T ES 2179517 T3 ES2179517 T3 ES 2179517T3
Authority
ES
Spain
Prior art keywords
trifluor
benzonitrile
procedure
obtaining
diluent
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
ES98932174T
Other languages
English (en)
Inventor
Achim Hupperts
Reinhard Lantzsch
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Application granted granted Critical
Publication of ES2179517T3 publication Critical patent/ES2179517T3/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
    • C07C253/00—Preparation of carboxylic acid nitriles

Landscapes

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

Abstract

La invención se refiere a un procedimiento para la producción de 2,4,5-trifluorobenzonitrilo de fórmula (I), que comprende las siguientes etapas: A) hacer reaccionar 2,4,5-trifluoroanilina de fórmula (II) con un agente de nitrosación en presencia de un diluyente, y B) hacer reaccionar el producto de la etapa A) con un cianuro de metal alcalino en presencia de un compuesto de metal de transición, un secuestrante de ácido y un diluyente.
ES98932174T 1997-07-01 1998-06-18 Procedimiento para la obtencion de 2,4,5-trifluor-benzonitrilo. Expired - Lifetime ES2179517T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19727890A DE19727890A1 (de) 1997-07-01 1997-07-01 Verfahren zur Herstellung von 2,4,5-Trifluor-benzonitril

Publications (1)

Publication Number Publication Date
ES2179517T3 true ES2179517T3 (es) 2003-01-16

Family

ID=7834188

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98932174T Expired - Lifetime ES2179517T3 (es) 1997-07-01 1998-06-18 Procedimiento para la obtencion de 2,4,5-trifluor-benzonitrilo.

Country Status (12)

Country Link
US (1) US6399807B1 (es)
EP (1) EP0994849B1 (es)
JP (1) JP2002507218A (es)
CN (1) CN1144780C (es)
AU (1) AU8216798A (es)
BR (1) BR9810647A (es)
DE (2) DE19727890A1 (es)
DK (1) DK0994849T3 (es)
ES (1) ES2179517T3 (es)
HK (1) HK1029577A1 (es)
IL (1) IL133130A (es)
WO (1) WO1999001425A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230183154A1 (en) * 2020-03-12 2023-06-15 Aarti Industries Limited Process for the preparation of 1-bromo-2,4,5-trifluorobenzene
CN117466729A (zh) * 2023-12-28 2024-01-30 山东国邦药业有限公司 一种2,4,5-三氟苯乙酸的合成方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2044015A (en) * 1936-06-16 Benzonitriles and process for
NL242085A (es) 1959-04-28
GB1131501A (en) * 1965-05-24 1968-10-23 Imp Smelting Corp Ltd Fluorinated quinolines
EP0191185B1 (en) 1984-12-14 1990-03-07 Daiichi Seiyaku Co., Ltd. Quinoline-carboxylic acid derivatives
FR2632648A1 (fr) * 1988-06-14 1989-12-15 Thomson Csf Polymeres mesomorphes a chaines laterales a forte anisotropie dielectrique utilisables en optique non lineaire
DE4238125A1 (de) 1992-11-12 1994-05-19 Bayer Ag Substituierte Triazolinone
GB8919678D0 (en) 1989-08-31 1989-10-11 Ici Plc Fluorobenzene derivatives
CH680056A5 (es) 1989-12-11 1992-06-15 Bruderer Ag
FR2655648B1 (fr) 1989-12-11 1992-03-13 Isochem Sa Dichloro-2,4-fluoro-5-benzonitrile et procedes pour sa preparation, son application a la preparation de l'acide chloro-2-difluoro-4,5-benzouique et nouveau procede de preparation.
EP0497239A1 (de) 1991-01-30 1992-08-05 Hoechst Aktiengesellschaft 2-Chlor-4,5-difluorbenzonitril und Verfahren zu seiner Herstellung
JPH069535A (ja) 1992-02-26 1994-01-18 Hoechst Ag ２，４，５−トリフルオロベンゾニトリルの製造方法
GB9208123D0 (en) 1992-04-13 1992-05-27 Ici Plc Substituted fluorobenzenes
GB9223195D0 (en) * 1992-11-05 1992-12-16 Octel Chem Ltd Preparation of substituted aryl compounds
DE4309966A1 (de) 1993-03-26 1994-09-29 Bayer Ag Substituierte 1-Aryltriazolinone
EP0635486B1 (de) 1993-07-21 1998-12-09 Clariant GmbH Verfahren zur Herstellung von Fluorbenzonitrilen
DE4339863A1 (de) 1993-11-23 1995-05-24 Bayer Ag Substituierte Carbamoyltriazole
DE4416329A1 (de) * 1994-05-09 1995-11-16 Hoechst Ag Substituierte 2-Chlor-3,4,5-trifluorbenzole und ein Verfahren zu ihrer Herstellung

Also Published As

Publication number Publication date
AU8216798A (en) 1999-01-25
EP0994849B1 (de) 2002-09-04
EP0994849A1 (de) 2000-04-26
BR9810647A (pt) 2000-08-01
WO1999001425A1 (de) 1999-01-14
IL133130A0 (en) 2001-03-19
CN1261875A (zh) 2000-08-02
JP2002507218A (ja) 2002-03-05
IL133130A (en) 2004-06-20
DE19727890A1 (de) 1999-01-07
US6399807B1 (en) 2002-06-04
DE59805434D1 (de) 2002-10-10
DK0994849T3 (da) 2002-11-25
HK1029577A1 (en) 2001-04-06
CN1144780C (zh) 2004-04-07

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