GB280924A - Process for the manufacture of thymol, its isomers or homologues and their hydrogenation products - Google Patents

Process for the manufacture of thymol, its isomers or homologues and their hydrogenation products

Info

Publication number
GB280924A
GB280924A GB30799/27A GB3079927A GB280924A GB 280924 A GB280924 A GB 280924A GB 30799/27 A GB30799/27 A GB 30799/27A GB 3079927 A GB3079927 A GB 3079927A GB 280924 A GB280924 A GB 280924A
Authority
GB
United Kingdom
Prior art keywords
thymol
schering
methyl
stereoisomeric
condensation product
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
GB30799/27A
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.)
Schering Kahlbaum AG
Original Assignee
Schering Kahlbaum AG
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 Schering Kahlbaum AG filed Critical Schering Kahlbaum AG
Publication of GB280924A publication Critical patent/GB280924A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms
    • C07C37/52—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms by splitting polyaromatic compounds, e.g. polyphenolalkanes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/17—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrogenation of carbon-to-carbon double or triple bonds
    • C07C29/19—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrogenation of carbon-to-carbon double or triple bonds in six-membered aromatic rings
    • C07C29/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrogenation of carbon-to-carbon double or triple bonds in six-membered aromatic rings in a non-condensed rings substituted with hydroxy groups
    • 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
    • C07C2601/14—The ring being saturated

Landscapes

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

Abstract

280,924. Schering-Kahlbaum Akt.- Ges., (formerly Chemische Fabrik auf Actien vorm. E. Schering). Nov. 16, 1926, [Convention date]. Addition to 276,010. Phencls; cyclohexanols.-The process of the parent Specification is conducted at temperatures substantially higher than the usual hydrogenation temperatures, that is to say, at or above 280‹ C. Thus, the condensation product of mcresol and acetone, when treated with hydrogen under pressure in the presence of a nickel catalyst at a temperature of 280‹ C., yields thymol and then stereoisomeric menthols according to the duration of the treatment; under similar conditions the condensation product of p-cresol and acetone gives first 4-methyl-6-isopropylphenol and then a mixture of the stereoisomeric 4-methyl-6- isopropylcyclohexanols. The starting materials are prepared by the process described in Specification 273,684.
GB30799/27A 1926-11-16 1927-11-16 Process for the manufacture of thymol, its isomers or homologues and their hydrogenation products Expired GB280924A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE280924X 1926-11-16

Publications (1)

Publication Number Publication Date
GB280924A true GB280924A (en) 1929-01-24

Family

ID=6033500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30799/27A Expired GB280924A (en) 1926-11-16 1927-11-16 Process for the manufacture of thymol, its isomers or homologues and their hydrogenation products

Country Status (1)

Country Link
GB (1) GB280924A (en)

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