ES2125919T3 - Procedimiento para la preparacion de 2,4,5-trifluoro-benzonitrilo. - Google Patents
Procedimiento para la preparacion de 2,4,5-trifluoro-benzonitrilo.Info
- Publication number
- ES2125919T3 ES2125919T3 ES93102845T ES93102845T ES2125919T3 ES 2125919 T3 ES2125919 T3 ES 2125919T3 ES 93102845 T ES93102845 T ES 93102845T ES 93102845 T ES93102845 T ES 93102845T ES 2125919 T3 ES2125919 T3 ES 2125919T3
- Authority
- ES
- Spain
- Prior art keywords
- benzonitrile
- trifluoro
- procedure
- preparation
- tetralquil
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/30—Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
Abstract
LA PRESENTE INVENCION SE REFIERE A UN PROCESO PARA LA FABRICACION DEL 2,4,5 LORO MOL % DE UN FLUORURO DE METAL ALCALINO O UN TETRALQUIL (C1 18) CLORO A SUSTITUIR SE TRANSFORMA EN PRESENCIA DE UN CATALIZADOR DE TRANSFERENCIA DE FASE, EVENTUALMENTE EN UN DISOLVENTE DIPOLAR APROTICO, EN TEMPERATURA DESDE APROXIMADAMENTE 80 HASTA 250 C.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4205786 | 1992-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2125919T3 true ES2125919T3 (es) | 1999-03-16 |
Family
ID=6452550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES93102845T Expired - Lifetime ES2125919T3 (es) | 1992-02-26 | 1993-02-24 | Procedimiento para la preparacion de 2,4,5-trifluoro-benzonitrilo. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0557949B1 (es) |
JP (1) | JPH069535A (es) |
CA (1) | CA2090768A1 (es) |
DE (1) | DE59309216D1 (es) |
ES (1) | ES2125919T3 (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0608713B1 (de) * | 1993-01-23 | 1996-12-27 | Hoechst Aktiengesellschaft | 2,3-Difluor-6-nitrobenzonitril und 2-Chlor-5,6-difluorbenzonitril, Verfahren zu deren Herstellung und ihre Verwendung zur Herstellung von 2,3,6-Trifluorbenzoesäure |
DE59407426D1 (de) * | 1993-07-21 | 1999-01-21 | Clariant Gmbh | Verfahren zur Herstellung von Fluorbenzonitrilen |
DE19727890A1 (de) | 1997-07-01 | 1999-01-07 | Bayer Ag | Verfahren zur Herstellung von 2,4,5-Trifluor-benzonitril |
JP3907449B2 (ja) * | 2001-11-13 | 2007-04-18 | 株式会社日本触媒 | 含フッ素安息香酸の精製方法 |
TWI726900B (zh) * | 2015-08-04 | 2021-05-11 | 美商陶氏農業科學公司 | 用於氟化化合物之過程 |
CN105061260A (zh) * | 2015-08-25 | 2015-11-18 | 苏州飞翔新材料研究院有限公司 | 一种芳香类或吡啶类间位氟代化合物的制备方法 |
CN113527192B (zh) * | 2021-03-15 | 2024-02-13 | 武威广达科技有限公司 | 一种2,3-二氯-5-三氟甲基吡啶的制备方法 |
CN113248423B (zh) * | 2021-06-03 | 2023-10-03 | 武威广达科技有限公司 | 一种2,3-二氯-5-三氟甲基吡啶的制备方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4973772A (en) * | 1987-02-07 | 1990-11-27 | Mallinckrodt, Inc. | Catalytic method for producing fluoroarmatic compounds using substituted pyridinium salts |
CN1007150B (zh) * | 1987-06-22 | 1990-03-14 | 国家医药管理局天津医药工业研究所 | 2,4-二氯-5-氟苯甲酸的合成 |
IE72169B1 (en) * | 1989-11-17 | 1997-03-26 | Asahi Glass Co Ltd | Processes for producing 5-fluorobenzoic acids and their intermediates |
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 |
-
1993
- 1993-02-24 JP JP5035740A patent/JPH069535A/ja active Pending
- 1993-02-24 ES ES93102845T patent/ES2125919T3/es not_active Expired - Lifetime
- 1993-02-24 DE DE59309216T patent/DE59309216D1/de not_active Revoked
- 1993-02-24 EP EP93102845A patent/EP0557949B1/de not_active Revoked
- 1993-02-25 CA CA002090768A patent/CA2090768A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JPH069535A (ja) | 1994-01-18 |
EP0557949B1 (de) | 1998-12-16 |
EP0557949A3 (en) | 1994-06-08 |
DE59309216D1 (de) | 1999-01-28 |
CA2090768A1 (en) | 1993-08-27 |
EP0557949A2 (de) | 1993-09-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2083881T3 (es) | Procedimiento para la preparacion de agentes tensioactivos anfoteros. | |
GR78654B (es) | ||
ES2125919T3 (es) | Procedimiento para la preparacion de 2,4,5-trifluoro-benzonitrilo. | |
ES494136A0 (es) | Un procedimiento para la preparacion de derivados del acido 7-oxo-1-azabiciclo (3,2,0) hep t-2-en-2-carboxilico. | |
ZA824883B (en) | 6-(4-(w-(1-imidazolyl)-alkyl)-phenyl)-3-oxo-2,3,4,5-tetrahydro-pyridazines and acid addition salts thereof, and a process for the preparation of these compounds, and pharmaceutical products containing them | |
FR2403988B1 (es) | ||
DE3586654T2 (de) | Photodynamische unkrautvertilger. | |
IT1244709B (it) | Processo per la preaparazione di 1.3-diossoli | |
FI932126A (fi) | Foerfarande foer framstaellning av 2-klor-5-klormetylpyridin | |
JPS52108770A (en) | Manufacture for direct heat type cathode | |
JPS549240A (en) | New derivative of phenylglycolic acid, its preparation and analgesic and antiinflammatory agent contining it as effective component | |
OA06952A (fr) | Procédé nouveau de préparation des tétrahydro-5,6,7,7a 4H-thiéno (3,2-c) pyridinones-2. | |
JPS5425168A (en) | Manufacture of heat sink for semiconductor | |
ES2080996T3 (es) | Procedimiento para la preparacion de difluorobenzaldehidos. | |
ES2052464T1 (es) | Procedimiento para la preparacion de 5-alcoxi-2,4-dinitro-alquilbenzoles. | |
JPS52108991A (en) | Purification of lactam | |
CA2092407A1 (en) | Process for the preparation of 2,3-difluoro-6-nitrophenol | |
JPS5426839A (en) | Preparation of chlorinated polyethylene solution | |
JPS5214721A (en) | Process for preparation of sodium malate hydrate | |
TW343933B (en) | Rejuvenation of spent acid catalyst resins | |
JPS559653A (en) | Purification of poly alpha-olefin | |
GB2003873A (en) | Process for producing 4- aryl-2(1h)-quinazolinones | |
JPS52138427A (en) | Production of rail having excellent wear resistance and damage resistance as rolled | |
JPS51141814A (en) | Process for preparation of 4-oxopentadecane dicarboxylic acid or its e sters | |
IT8185553A0 (it) | Procedimento per il recupero di acido cloro 3,5 dinitrobenzoico dagli acidi esausti di nitrazione del para cloro benzotrifluoruro. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
Ref document number: 557949 Country of ref document: ES |