GB979889A - - Google Patents

Info

Publication number
GB979889A
GB979889A GB2315862A GB2315862A GB979889A GB 979889 A GB979889 A GB 979889A GB 2315862 A GB2315862 A GB 2315862A GB 2315862 A GB2315862 A GB 2315862A GB 979889 A GB979889 A GB 979889A
Authority
GB
United Kingdom
Prior art keywords
reaction
oxidocyclodecene
cyclodecen
cyclodecanol
cycloheptanone
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
GB2315862A
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.)
Inventa AG fuer Forschung und Patentverwertung
Original Assignee
Inventa AG fuer Forschung und Patentverwertung
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 Inventa AG fuer Forschung und Patentverwertung filed Critical Inventa AG fuer Forschung und Patentverwertung
Publication of GB979889A publication Critical patent/GB979889A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/65—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups
    • C07C45/66—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups by dehydration
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/673—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by change of size of the carbon skeleton
    • C07C45/676—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by change of size of the carbon skeleton by elimination of carboxyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
    • C07C49/607—Unsaturated compounds containing a keto groups being part of a ring of a seven-to twelve-membered ring

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)

Abstract

Cyclodecen-5-one-1 is produced by dehydrating cyclodecanol-6-one-1, or carboxylic acid esters thereof, by heating in the presence of a catalyst comprising platinum, zinc, iron, an oxide or a basic or stoichiometrically neutral salt thereof, a mixture of such salts, or calcium sulphate. The reaction may be carried out at elevated temperatures, and at atmospheric pressure, when it may occur in the gas phase, or under pressure in an autoclave. 1, 6-Oxidocyclodecene-1, cyclopentano-cycloheptanone and cyclopenteno-cycloheptanone are formed as by-products during the reaction. The 1, 6-oxidocyclodecene-1 may be hydrated to cyclodecanol-6-one-1 by acidic, alkaline or catalytic hydrolysis and recycled to the reaction mixture or it may be converted to cyclodecen-5-one-1 by substantially simultaneous oxido-ring splitting and dehydration in the presence of a catalyst such as platinum, activated charcoal, Raney nickel or calcium sulphate.
GB2315862A 1961-06-20 1962-06-15 Expired GB979889A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH712761A CH405287A (en) 1961-06-20 1961-06-20 Process for the preparation of cyclodecen- (5) -one- (1)

Publications (1)

Publication Number Publication Date
GB979889A true GB979889A (en) 1965-01-06

Family

ID=4320390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2315862A Expired GB979889A (en) 1961-06-20 1962-06-15

Country Status (6)

Country Link
BE (1) BE619165A (en)
CH (1) CH405287A (en)
DK (1) DK103474C (en)
ES (1) ES277333A1 (en)
GB (1) GB979889A (en)
SE (1) SE307785B (en)

Also Published As

Publication number Publication date
CH405287A (en) 1966-01-15
ES277333A1 (en) 1962-08-16
SE307785B (en) 1969-01-20
DK103474C (en) 1966-01-10
BE619165A (en) 1962-10-15

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