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
Application number
ES89202983T
Other languages
English (en)
Inventor
Dennis K Klipa
James R Dewald
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.)
Corteva Agriscience LLC
Original Assignee
DowElanco LLC
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 DowElanco LLC filed Critical DowElanco LLC
Application granted granted Critical
Publication of ES2061955T3 publication Critical patent/ES2061955T3/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
    • 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.
ES89202983T 1989-11-24 1989-11-24 Procedimiento para utilizar un catalizador mejorado para deshidrohalogenacion. Expired - Lifetime ES2061955T3 (es)

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)

* Cited by examiner, † Cited by third party
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

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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