GB1492059A - Preparation of 1,5-dimethylcyclo-octene - Google Patents

Preparation of 1,5-dimethylcyclo-octene

Info

Publication number
GB1492059A
GB1492059A GB49796/74A GB4979674A GB1492059A GB 1492059 A GB1492059 A GB 1492059A GB 49796/74 A GB49796/74 A GB 49796/74A GB 4979674 A GB4979674 A GB 4979674A GB 1492059 A GB1492059 A GB 1492059A
Authority
GB
United Kingdom
Prior art keywords
mixture
catalyst
dimethylcycloocta
dimethylcyclooctene
dienes
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
Application number
GB49796/74A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB49796/74A priority Critical patent/GB1492059A/en
Priority to BE1006998A priority patent/BE835302A/en
Priority to IT29313/75A priority patent/IT1059526B/en
Priority to NL7513384A priority patent/NL7513384A/en
Priority to CH226376A priority patent/CH602523A5/xx
Priority to DE2551586A priority patent/DE2551586C2/en
Priority to JP50137354A priority patent/JPS605572B2/en
Priority to FR7535027A priority patent/FR2291171A1/en
Publication of GB1492059A publication Critical patent/GB1492059A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C13/00—Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
    • C07C13/02—Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
    • C07C13/26—Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with an eight-membered ring
    • C07C13/263—Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with an eight-membered ring with a cyclo-octene or cyclo-octadiene ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
    • C07C5/03—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of non-aromatic carbon-to-carbon double bonds
    • C07C5/05—Partial hydrogenation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/23—Rearrangement of carbon-to-carbon unsaturated bonds
    • C07C5/25—Migration of carbon-to-carbon double bonds
    • C07C5/2506—Catalytic processes
    • C07C5/2556—Catalytic processes with metals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/02—Boron or aluminium; Oxides or hydroxides thereof
    • C07C2521/04—Alumina
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the alkali- or alkaline earth metals or beryllium
    • C07C2523/04—Alkali metals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
    • C07C2523/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals of the platinum group metals
    • C07C2523/44—Palladium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/18—Systems containing only non-condensed rings with a ring being at least seven-membered

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

1492059 1,5-Dimethylcyclooctene SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 17 Nov 1975 [18 Nov 1974] 49796/74 Heading C5E 1,5-Dimethylcyclooctene is prepared by (a) isomerizing a mixture of 1,5- and 2,6-dimethylcycloocta-1,5-dienes in the presence of a catalyst comprising an alkali metal on an alumina carrier to give a mixture of conjugated cyclodienes and either (b) selectively hydrogenating this mixture in the presence of a catalyst comprising an alkali metal on an alumina carrier, or (c) separating the isomers 1,5- and 2,6-dimethylcycloocta-1,3- dienes from the isomerized mixture and selectively hydrogenating these isomers in the presence of a hydrogenation catalyst. Steps (a) and (b) may be carried out together. The separation in (c) may be by distillation and the hydrogenation catalyst may be a palladium catalyst.
GB49796/74A 1974-11-18 1974-11-18 Preparation of 1,5-dimethylcyclo-octene Expired GB1492059A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB49796/74A GB1492059A (en) 1974-11-18 1974-11-18 Preparation of 1,5-dimethylcyclo-octene
BE1006998A BE835302A (en) 1974-11-18 1975-11-06 PROCESS FOR PREPARING 1,5-DIMETHYLCYCLO-OCTENE
IT29313/75A IT1059526B (en) 1974-11-18 1975-11-14 PROCESS FOR PREPARING 1.5 DIMETHYL CYCLOOTENE BY SELECTIVE OXIDATION
NL7513384A NL7513384A (en) 1974-11-18 1975-11-17 PROCESS FOR PREPARING 1,5-DIMETHYLCYCLO-OCTENE.
CH226376A CH602523A5 (en) 1974-11-18 1975-11-17
DE2551586A DE2551586C2 (en) 1974-11-18 1975-11-17 Process for the preparation of 1,5-dimethylcyclooctene
JP50137354A JPS605572B2 (en) 1974-11-18 1975-11-17 selective hydrogenation
FR7535027A FR2291171A1 (en) 1974-11-18 1975-11-17 PROCESS FOR PREPARING 1,5-DIMETHYLCYCLOOCTENE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB49796/74A GB1492059A (en) 1974-11-18 1974-11-18 Preparation of 1,5-dimethylcyclo-octene

Publications (1)

Publication Number Publication Date
GB1492059A true GB1492059A (en) 1977-11-16

Family

ID=10453563

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49796/74A Expired GB1492059A (en) 1974-11-18 1974-11-18 Preparation of 1,5-dimethylcyclo-octene

Country Status (8)

Country Link
JP (1) JPS605572B2 (en)
BE (1) BE835302A (en)
CH (1) CH602523A5 (en)
DE (1) DE2551586C2 (en)
FR (1) FR2291171A1 (en)
GB (1) GB1492059A (en)
IT (1) IT1059526B (en)
NL (1) NL7513384A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52156946A (en) * 1976-06-24 1977-12-27 Sanei Kagaku Kogyo Kk Material for cooked and frozen food of meat and vegetable
JPS52156945A (en) * 1976-06-24 1977-12-27 Sanei Kagaku Kogyo Kk Cooked and frozen vegetable and cereal food
JPS52156947A (en) * 1976-06-24 1977-12-27 Sanei Kagaku Kogyo Kk Material for frozen and cooked food of meat and vegetable

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1465336A (en) * 1965-02-09 1967-01-06 Columbian Carbon Process for the selective hydrogenation of a cycloalkadiene
US3418386A (en) * 1966-07-05 1968-12-24 Columbian Carbon Hydrogenation of cyclooctadienes to cyclooctenes
IT942621B (en) * 1970-11-20 1973-04-02 Sumitomo Chemical Co PROCEDURE FOR THE PRODUCTION OF 1 3 CYCLOOTTADIENE
NL167945C (en) * 1972-01-05 1982-07-16 Shell Int Research A method for shifting double bonds in olefins.

Also Published As

Publication number Publication date
JPS5175045A (en) 1976-06-29
DE2551586A1 (en) 1976-05-20
FR2291171B1 (en) 1977-12-16
DE2551586C2 (en) 1984-02-16
NL7513384A (en) 1976-05-20
JPS605572B2 (en) 1985-02-12
BE835302A (en) 1976-05-06
FR2291171A1 (en) 1976-06-11
IT1059526B (en) 1982-06-21
CH602523A5 (en) 1978-07-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941117