ES2061955T3 - Procedimiento para utilizar un catalizador mejorado para deshidrohalogenacion. - Google Patents
Procedimiento para utilizar un catalizador mejorado para deshidrohalogenacion.Info
- Publication number
- ES2061955T3 ES2061955T3 ES89202983T ES89202983T ES2061955T3 ES 2061955 T3 ES2061955 T3 ES 2061955T3 ES 89202983 T ES89202983 T ES 89202983T ES 89202983 T ES89202983 T ES 89202983T ES 2061955 T3 ES2061955 T3 ES 2061955T3
- Authority
- ES
- Spain
- Prior art keywords
- alpha
- dehydrohalogenation
- procedure
- improved catalyst
- haloalkylbenzene
- 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
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/25—Preparation of halogenated hydrocarbons by splitting-off hydrogen halides from halogenated hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
- C07C17/272—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions
- C07C17/278—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions of only halogenated hydrocarbons
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)
- Catalysts (AREA)
Abstract
SE DESCRIBE AQUI UN PROCESO PARA PREPARAR UN ESTIRENO DE ALFA SUSTITUIDO, COMO POR EJEMPLO 2-(3, 5-DICLOROFENILO)-4, 4, 4-TRICLORO-1-BUTENO, QUE CONSISTE EN HACER REACCIONAR, EN AUSENCIA DE UN ACIDO LEWIS AÑADIDO, UN ALFA-HALOALQUILBENZENO, COMO 3-(3, 5-DICLOROFENILO)-1, 1, 1, 3-TETRACLOROBUTANO, CON Y GAMMA-ALUMINA DESHIDRATADA A UN CONTENIDO DE HUMEDAD DE ENTRE EL CERO Y EL DOCE POR CIENTO EN PESO. LA GAMMA-ALUMINA SIRVE PARA CATALIZAR LA DESHIDRO-HALOGENACION DEL ALFA-HALOALQUILBENZENO PARA PRODUCIR EL ESTIRENO DE ALFA SUSTITUIDO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP89202983A EP0428791B1 (en) | 1989-11-24 | 1989-11-24 | Process for using an improved catalyst for dehydrohalogenation |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2061955T3 true ES2061955T3 (es) | 1994-12-16 |
Family
ID=8202511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES89202983T Expired - Lifetime ES2061955T3 (es) | 1989-11-24 | 1989-11-24 | Procedimiento para utilizar un catalizador mejorado para deshidrohalogenacion. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0428791B1 (es) |
JP (1) | JPH03170444A (es) |
AT (1) | ATE113024T1 (es) |
DE (1) | DE68918947T2 (es) |
ES (1) | ES2061955T3 (es) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3607955A (en) * | 1968-04-08 | 1971-09-21 | Phillips Petroleum Co | Hydrofluorination and dehydrofluorination and catalysts therefor |
US4188346A (en) * | 1978-05-18 | 1980-02-12 | The Dow Chemical Company | Dehydrohalogenation of (polyhaloalkyl)benzenes |
US4205015A (en) * | 1978-05-18 | 1980-05-27 | The Dow Chemical Company | Dehydrohalogenation of (polyhaloalkyl) benzenes with support Lewis acid catalysts |
AU521527B2 (en) * | 1979-09-12 | 1982-04-08 | Dow Chemical Company, The | Dehydrohalogenation of (polyhaloalkyl) benzenes |
NZ224723A (en) * | 1987-05-26 | 1991-07-26 | Dow Chemical Co | Process for preparing substituted alpha-methylstyrene |
-
1989
- 1989-11-24 AT AT89202983T patent/ATE113024T1/de not_active IP Right Cessation
- 1989-11-24 DE DE68918947T patent/DE68918947T2/de not_active Expired - Fee Related
- 1989-11-24 EP EP89202983A patent/EP0428791B1/en not_active Expired - Lifetime
- 1989-11-24 ES ES89202983T patent/ES2061955T3/es not_active Expired - Lifetime
- 1989-11-27 JP JP1304935A patent/JPH03170444A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0428791A1 (en) | 1991-05-29 |
EP0428791B1 (en) | 1994-10-19 |
DE68918947T2 (de) | 1995-02-23 |
DE68918947D1 (de) | 1994-11-24 |
JPH03170444A (ja) | 1991-07-24 |
ATE113024T1 (de) | 1994-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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