FR2373504A1 - PREPARATION OF BRANCHIFIED OLEFINIC COMPOUNDS - Google Patents

PREPARATION OF BRANCHIFIED OLEFINIC COMPOUNDS

Info

Publication number
FR2373504A1
FR2373504A1 FR7736834A FR7736834A FR2373504A1 FR 2373504 A1 FR2373504 A1 FR 2373504A1 FR 7736834 A FR7736834 A FR 7736834A FR 7736834 A FR7736834 A FR 7736834A FR 2373504 A1 FR2373504 A1 FR 2373504A1
Authority
FR
France
Prior art keywords
preparation
branchified
olefinic compounds
diene
olefins
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.)
Granted
Application number
FR7736834A
Other languages
French (fr)
Other versions
FR2373504B1 (en
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
Publication of FR2373504A1 publication Critical patent/FR2373504A1/en
Application granted granted Critical
Publication of FR2373504B1 publication Critical patent/FR2373504B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C11/00—Aliphatic unsaturated hydrocarbons
    • C07C11/12—Alkadienes
    • 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
    • C07C5/2512—Catalytic processes with metal oxides
    • 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
    • C07C6/00—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions
    • C07C6/02—Metathesis reactions at an unsaturated carbon-to-carbon bond
    • C07C6/04—Metathesis reactions at an unsaturated carbon-to-carbon bond at a carbon-to-carbon double bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

Procédé pour la préparation d'oléfines ramifiées ayant de 2 à 4 doubles liaisons dont une est une double liaison terminale. Des dioléfines non-alpha sont soumises à une dismutation avec des isooléfines en présence d'un catalyseur, un mode de mise en oeuvre préféré concernant la préparation d'isononadiène (2,6-diméthylpheta-1,5-diène) à partir de dihydromyrcène (2,6-diméthylocta-2,6-diène) et d'isobutène. Ces oléfines ont diverses applications, notamment la préparation de produits chimiques odoriférants.Process for the preparation of branched olefins having 2 to 4 double bonds, one of which is a terminal double bond. Non-alpha diolefins are disproportionated with isoolefins in the presence of a catalyst, a preferred embodiment relating to the preparation of isononadiene (2,6-dimethylpheta-1,5-diene) from dihydromyrene (2,6-dimethylocta-2,6-diene) and isobutene. These olefins have a variety of applications, including the preparation of odoriferous chemicals.

FR7736834A 1976-12-09 1977-12-07 PREPARATION OF BRANCHIFIED OLEFINIC COMPOUNDS Granted FR2373504A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5147276A GB1552368A (en) 1976-12-09 1976-12-09 Preparation of olefinic compounds by disproportionation

Publications (2)

Publication Number Publication Date
FR2373504A1 true FR2373504A1 (en) 1978-07-07
FR2373504B1 FR2373504B1 (en) 1981-03-20

Family

ID=10460161

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7736834A Granted FR2373504A1 (en) 1976-12-09 1977-12-07 PREPARATION OF BRANCHIFIED OLEFINIC COMPOUNDS

Country Status (6)

Country Link
JP (1) JPS5373503A (en)
CH (1) CH632730A5 (en)
DE (1) DE2754540A1 (en)
FR (1) FR2373504A1 (en)
GB (1) GB1552368A (en)
NL (1) NL7713513A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4412089A (en) * 1981-08-24 1983-10-25 Shell Oil Company Process for the preparation of dienes and/or trienes
DE10142033A1 (en) 2001-08-28 2003-03-20 Haarmann & Reimer Gmbh metathesis

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855338A (en) * 1973-10-24 1974-12-17 Hoffmann La Roche Preparation of 6-methyl-1,5-heptadiene

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1471151A (en) * 1973-05-30 1977-04-21 Shell Int Research Process for the production of alkenes
GB1532981A (en) * 1975-02-06 1978-11-22 Shell Int Research Process for preparing olefinic compounds

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855338A (en) * 1973-10-24 1974-12-17 Hoffmann La Roche Preparation of 6-methyl-1,5-heptadiene

Also Published As

Publication number Publication date
JPS5373503A (en) 1978-06-30
JPS6127374B2 (en) 1986-06-25
FR2373504B1 (en) 1981-03-20
GB1552368A (en) 1979-09-12
NL7713513A (en) 1978-06-13
CH632730A5 (en) 1982-10-29
DE2754540A1 (en) 1978-06-15

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Legal Events

Date Code Title Description
ST Notification of lapse