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 (11)

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)
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
WO2021181416A1 (en) * 2020-03-12 2021-09-16 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
NL108786C (es) 1959-04-28
GB1131501A (en) 1965-05-24 1968-10-23 Imp Smelting Corp Ltd Fluorinated quinolines
JPS6212760A (ja) * 1984-12-14 1987-01-21 Dai Ichi Seiyaku Co Ltd １−（２−ハロゲノシクロプロピル）キノリンカルボン酸誘導体
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
ES2125919T3 (es) 1992-02-26 1999-03-16 Clariant Gmbh Procedimiento para la preparacion de 2,4,5-trifluoro-benzonitrilo.
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
DE59805434D1 (de) 2002-10-10
IL133130A (en) 2004-06-20
CN1261875A (zh) 2000-08-02
HK1029577A1 (en) 2001-04-06
DE19727890A1 (de) 1999-01-07
CN1144780C (zh) 2004-04-07
DK0994849T3 (da) 2002-11-25
JP2002507218A (ja) 2002-03-05
WO1999001425A1 (de) 1999-01-14
EP0994849B1 (de) 2002-09-04
EP0994849A1 (de) 2000-04-26
BR9810647A (pt) 2000-08-01
IL133130A0 (en) 2001-03-19
US6399807B1 (en) 2002-06-04

Similar Documents

Publication Publication Date Title
HRP990167B1 (en) Sulphinic acid derivatives, method for producing them, and their use
ES2104386T3 (es) Compuesto intermedio para la acitromicina.
IT1292130B1 (it) Processo per la preparazione dell'acido 1,4,7,10-tetraazaciclododecan -1,4,7-triacetico e suoi derivati
IT1312331B1 (it) Procedimento per la produzione di diamminodifenilmetano e suoiomologhi superiori.
GB2348879B (en) Process
ES2179517T3 (es) Procedimiento para la obtencion de 2,4,5-trifluor-benzonitrilo.
CO4560464A1 (es) Polioles que tienen insaturacion reducida y un proceso para producirlos
ES2152342T3 (es) Un procedimiento para la preparacion de n-alquil-n-piridinil-1h-indol-1-aminas.
IL114488A0 (en) Amino acid-derived diaminopropanols
PL311002A1 (en) Method of obtaining aminomethanophosphonic acid
MX9803844A (es) Preparacion de 2-(2-metilfenil)-3-metoxiacrilato de metilo.
BR9807458A (pt) Processo para produzir ácido láctico e seus produtos.
BR9916280B1 (pt) processo de preparaÇço de para-trifluorometilanilinas poli-halogenadas.
IT1309601B1 (it) Processo per la preparazione di 1,4,7,10 tetraazaciclododecano.
ATE258547T1 (de) Verfahren zur herstellung von 2-hydroxy-6- trifluormethylpyridin
BR9907340A (pt) Ciclo-heptenos substituìdos, e processo para a produção de um composto
BR9909570A (pt) Processo altamente seletivo, produto preparado pelo mesmo, e, processo para preparar uma quinonaimina a partir de uma hidroxifenilamina correspondente
IL141010A (en) Method for producing atropic acid ethyl ester
ATE253553T1 (de) Verfahren zur herstellung von 2- alkylthiobenzonitril-derivaten
EP1300391A4 (en) PROCESS FOR PREPARING 3-AMINO-2-HYDROXYPROPIONIC ACID DERIVATIVES
ATE259785T1 (de) Verfahren zur herstellung von 2-alkylthio- substituierten benzoesäurederivaten
DE59806469D1 (de) Verfahren zur herstellung von 3-hydroxy-2-methylbenzoesäure
ATE330946T1 (de) Verfahren zur herstellung einer benzylamin- verbindung
ES2194745T3 (es) Procedimiento para la obtencion de 4,6-dicloropirimidi-na.
WO1998027057A3 (de) Verfahren zur herstellung von trifluoracetessigsäure-aniliden