GB887305A - Method of dimerizing lower alpha-olefins - Google Patents

Method of dimerizing lower alpha-olefins

Info

Publication number
GB887305A
GB887305A GB33173/58A GB3317358A GB887305A GB 887305 A GB887305 A GB 887305A GB 33173/58 A GB33173/58 A GB 33173/58A GB 3317358 A GB3317358 A GB 3317358A GB 887305 A GB887305 A GB 887305A
Authority
GB
United Kingdom
Prior art keywords
ethylene
olefins
codimerisation
alkoxide
propylene
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
GB33173/58A
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of GB887305A publication Critical patent/GB887305A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/02—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
    • C07C2/04—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
    • C07C2/06—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of alkenes, i.e. acyclic hydrocarbons having only one carbon-to-carbon double bond
    • C07C2/08—Catalytic processes
    • C07C2/26—Catalytic processes with hydrides or organic compounds
    • C07C2/30—Catalytic processes with hydrides or organic compounds containing metal-to-carbon bond; Metal hydrides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2531/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • C07C2531/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • C07C2531/12—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2531/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • C07C2531/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • C07C2531/12—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides
    • C07C2531/14—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides of aluminium or boron

Landscapes

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

Abstract

Dimers of a -olefines of 3-6 carbon atoms or codimers thereof with each other or with ethylene are formed from the monomer or comonomers in the presence of a mixture of (a) an alkyl derivative of a metal of Group I, II or III and (b) an alkoxide of a transition metal of Group IV, V or VI of the Periodic Table, the molar ratio of (a) to (b) being from 2 to 10 : 1. The dimerisation of propylene and butene-1 and the codimerisation thereof with ethylene are referred to. Compound (a) is preferably an alkyl derivative of lithium, beryllium or aluminium and (b) an alkoxide of titanium, vanadium or chromium. A hydrocarbon solvent is preferably used at temperatures of 50 DEG C.-100 DEG C. and pressures of 10-30 atmospheres. The codimerisation of propylene and ethylene yields 2- and 3-methylbutene-1, useful as precursors of isoprene.
GB33173/58A 1957-10-22 1958-10-17 Method of dimerizing lower alpha-olefins Expired GB887305A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT887305X 1957-10-22

Publications (1)

Publication Number Publication Date
GB887305A true GB887305A (en) 1962-01-17

Family

ID=11331254

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33173/58A Expired GB887305A (en) 1957-10-22 1958-10-17 Method of dimerizing lower alpha-olefins

Country Status (1)

Country Link
GB (1) GB887305A (en)

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