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GB807502A - An improved method of producing olefinic compounds - Google Patents

An improved method of producing olefinic compounds

Info

Publication number
GB807502A
GB807502A GB15877/58A GB1587758A GB807502A GB 807502 A GB807502 A GB 807502A GB 15877/58 A GB15877/58 A GB 15877/58A GB 1587758 A GB1587758 A GB 1587758A GB 807502 A GB807502 A GB 807502A
Authority
GB
United Kingdom
Prior art keywords
compound
chloro
acids
olefine
hydrogen chloride
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
GB15877/58A
Inventor
Pierre Leprince
Fernand Coussemant
Jean Limido
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Publication of GB807502A publication Critical patent/GB807502A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/26—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only halogen atoms as hetero-atoms
    • C07C1/30—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only halogen atoms as hetero-atoms by splitting-off the elements of hydrogen halide from a single molecule
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated

Landscapes

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

Abstract

Alkenes and cycloalkenes are produced by the dehydrochlorination of the corresponding chloro-compound by heating with a strong organic or inorganic acid which is miscible with the chloro-compound and removing the olefine and hydrogen chloride as formed; a strong acid is one defined as having a dissociation constant of at least 0.002 at 25 DEG C. The examples refer to the production of cyclohexene and hexene-2 from chlorocyclohexane and 2-chlorohexane respectively. Acids referred to are dichloroacetic, trichloroacetic, fluoroacetic, benzene sulphonic, toluene sulphonic, sulphuric and phosphoric acids. The reaction mixture may also contain a polar organic solvent or organic solvent boiling above 140 DEG C., there being referred to, acetic, propionic, butyric and benzoic acids, alkylphenols, decahydronaphthalene, nitrobenzene, o-dichlorobenzene and chloronitrobenzene. The process can be carried out continuously by introducing the chloro-compound into the heated acid, with or without solvent, at a rate which maintains the reaction volume constant, and continuously removing by distillation the olefine and hydrogen chloride. Batch operation may also be used.
GB15877/58A 1954-07-29 1955-07-29 An improved method of producing olefinic compounds Expired GB807502A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR807502X 1954-07-29

Publications (1)

Publication Number Publication Date
GB807502A true GB807502A (en) 1959-01-14

Family

ID=9252457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15877/58A Expired GB807502A (en) 1954-07-29 1955-07-29 An improved method of producing olefinic compounds

Country Status (1)

Country Link
GB (1) GB807502A (en)

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