ES2079666T3 - Procedimiento para la preparacion de clorofluoro-nitrobencenos y difluoro-nitrobencenos. - Google Patents
Procedimiento para la preparacion de clorofluoro-nitrobencenos y difluoro-nitrobencenos.Info
- Publication number
- ES2079666T3 ES2079666T3 ES91910611T ES91910611T ES2079666T3 ES 2079666 T3 ES2079666 T3 ES 2079666T3 ES 91910611 T ES91910611 T ES 91910611T ES 91910611 T ES91910611 T ES 91910611T ES 2079666 T3 ES2079666 T3 ES 2079666T3
- Authority
- ES
- Spain
- Prior art keywords
- nitrobenzenes
- procedure
- difluorous
- chlorofluoro
- 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.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
- C07C205/07—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms
- C07C205/11—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms having nitro groups bound to carbon atoms of six-membered aromatic rings
- C07C205/12—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms having nitro groups bound to carbon atoms of six-membered aromatic rings the six-membered aromatic ring or a condensed ring system containing that ring being substituted by halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/12—Preparation of nitro compounds by reactions not involving the formation of nitro groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
PROCEDIMIENTO PARA LA OBTENCION DE CLOROFLUORNITROBENCENOS Y DIFLUORNITROBENCENOS, QUE SE CARACTERIZA PORQUE SE CALIENTA UN EXCESO DE DICLORONITROBENCENO CON UN FLUORURO DE METAL ALCALINO CON UN CONTENIDO TOTAL DE AGUA DE ALREDEDOR DE 0,2 A 2,5 % DE SU PESO, EN PRESENCIA DE UNA SAL AMONICA CUATERNARIA Y/O SAL DE FOSFONIO, ETER DE CORONA Y/O ETER DIMETILO DE POLIETILENGLICOL COMO CATALIZADOR, EN AUSENCIA DE UN DISOLVENTE, A NO MAS DE 200 (GRADOS) C.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904020130 DE4020130A1 (de) | 1990-06-25 | 1990-06-25 | Verfahren zur herstellung von chlorfluornitrobenzolen und difluornitrobenzolen |
DE19904027591 DE4027591A1 (de) | 1990-08-31 | 1990-08-31 | Verfahren zur herstellung von chlorfluornitrobenzolen und difluornitrobenzolen |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2079666T3 true ES2079666T3 (es) | 1996-01-16 |
Family
ID=25894426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91910611T Expired - Lifetime ES2079666T3 (es) | 1990-06-25 | 1991-06-08 | Procedimiento para la preparacion de clorofluoro-nitrobencenos y difluoro-nitrobencenos. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5545768A (es) |
EP (1) | EP0536175B1 (es) |
JP (1) | JPH05507689A (es) |
KR (1) | KR930701385A (es) |
DE (1) | DE59106553D1 (es) |
ES (1) | ES2079666T3 (es) |
WO (1) | WO1992000270A1 (es) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4324367A1 (de) * | 1993-07-21 | 1995-01-26 | Hoechst Ag | Verfahren zur Herstellung von Fluornitrobenzolen |
DE4324366C1 (de) * | 1993-07-21 | 1994-09-22 | Hoechst Ag | Katalysator für nukleophile aromatische Substitutionen |
US5502235A (en) * | 1994-12-28 | 1996-03-26 | Dowelanco | Solventless process for making 2,6 difluorobenzonitrile |
DE19631854C1 (de) * | 1996-08-07 | 1998-04-30 | Hoechst Ag | Verfahren zur Herstellung von Fluor enthaltenden Verbindungen |
JP2001504495A (ja) | 1996-11-22 | 2001-04-03 | アルベマール・コーポレーシヨン | ハロゲン交換反応およびそれらの使用 |
US5965781A (en) * | 1997-11-21 | 1999-10-12 | Albemarle Corporation | Catalysis in halogen exchange reactions |
MXPA03010352A (es) * | 2001-05-17 | 2004-03-16 | Rhodia Chimie Sa | Uso de una composicion de naturaleza ionica como reactivo de sustitucion, composicion que constituye un reactivo de fluoracion y metodo que la utiliza. |
US6785308B2 (en) * | 2002-03-28 | 2004-08-31 | Nortel Networks Limited | Spectral conditioning system and method |
JP6640210B2 (ja) | 2014-10-14 | 2020-02-05 | シンジェンタ パーティシペーションズ アーゲー | 1−(3,5−ジクロロ−4−フルオロ−フェニル)−2,2,2−トリフルオロ−エタノンを調製するプロセス |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3064058A (en) * | 1961-04-07 | 1962-11-13 | Nepera Chemical Co Inc | Method of preparing fluorinated compounds |
US3240824A (en) * | 1965-01-28 | 1966-03-15 | Olin Mathieson | Process for preparing fluoronitrobenzenes |
US3992432A (en) * | 1967-04-05 | 1976-11-16 | Continental Oil Company | Phase transfer catalysis of heterogeneous reactions by quaternary salts |
US4140719A (en) * | 1977-10-31 | 1979-02-20 | Merck & Co., Inc. | Solid-liquid phase transfer catalysis improved method of preparing 2,4-difluoroaniline |
US4164517A (en) * | 1977-12-30 | 1979-08-14 | I.S.C. Chemicals Limited | Preparation of fluoronitrobenzene |
DE2938939A1 (de) * | 1978-10-05 | 1980-04-17 | Boots Co Ltd | Verfahren zur herstellung von fluornitrobenzolen |
US4642239A (en) * | 1984-01-09 | 1987-02-10 | Transparent Paper Plc | Packaging of fresh meat |
US4642399A (en) * | 1984-11-29 | 1987-02-10 | Mallinckrodt, Inc. | Method for producing fluoronitrobenzene compounds |
GB8500180D0 (en) * | 1985-01-04 | 1985-02-13 | Ici Plc | Chemical process |
US4849552A (en) * | 1986-01-06 | 1989-07-18 | Mallinckrodt, Inc. | Preparation of fluoroaromatic compounds in dispersion of potassium fluoride |
DE3642332A1 (de) * | 1986-12-11 | 1988-06-23 | Bayer Ag | Verfahren zur herstellung von substituierten 3,5-dichlor-2,4-difluor-benzolen |
JP2577567B2 (ja) * | 1987-07-07 | 1997-02-05 | イハラケミカル工業株式会社 | 芳香族フッ素化合物の製造方法 |
DE3827436A1 (de) * | 1988-08-12 | 1990-02-15 | Bayer Ag | Verfahren zum einfuehren von fluoratomen an aromatische kerne durch nucleophilen austausch |
ES2083631T3 (es) * | 1991-07-17 | 1996-04-16 | Hoechst Ag | Procedimiento para la preparacion de clorofluoronitrobencenos. |
DE4324367A1 (de) * | 1993-07-21 | 1995-01-26 | Hoechst Ag | Verfahren zur Herstellung von Fluornitrobenzolen |
-
1991
- 1991-06-08 WO PCT/EP1991/001079 patent/WO1992000270A1/de active IP Right Grant
- 1991-06-08 KR KR1019920703350A patent/KR930701385A/ko not_active Application Discontinuation
- 1991-06-08 EP EP91910611A patent/EP0536175B1/de not_active Expired - Lifetime
- 1991-06-08 DE DE59106553T patent/DE59106553D1/de not_active Expired - Fee Related
- 1991-06-08 ES ES91910611T patent/ES2079666T3/es not_active Expired - Lifetime
- 1991-06-08 JP JP91509896A patent/JPH05507689A/ja active Pending
- 1991-06-08 US US07/958,107 patent/US5545768A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0536175B1 (de) | 1995-09-20 |
EP0536175A1 (de) | 1993-04-14 |
KR930701385A (ko) | 1993-06-11 |
DE59106553D1 (de) | 1995-10-26 |
WO1992000270A1 (de) | 1992-01-09 |
JPH05507689A (ja) | 1993-11-04 |
US5545768A (en) | 1996-08-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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