GB254753A - Process for the manufacture of alkylated phenols and their hydrogenated products - Google Patents

Process for the manufacture of alkylated phenols and their hydrogenated products

Info

Publication number
GB254753A
GB254753A GB16828/26A GB1682826A GB254753A GB 254753 A GB254753 A GB 254753A GB 16828/26 A GB16828/26 A GB 16828/26A GB 1682826 A GB1682826 A GB 1682826A GB 254753 A GB254753 A GB 254753A
Authority
GB
United Kingdom
Prior art keywords
mixture
cyclohexanols
catalyst
alkyl phenols
isopropylcyclohexanol
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
GB16828/26A
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.)
CHEM FAB AUF ACTIEN
Original Assignee
CHEM FAB AUF ACTIEN
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 CHEM FAB AUF ACTIEN filed Critical CHEM FAB AUF ACTIEN
Publication of GB254753A publication Critical patent/GB254753A/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)

Abstract

254,753. Chemische Fabrik auf Actien vorm. E. Schering. July 4, 1925, [Convention date]. Alkyl phenols and cyclohexanols. - Alkyl phenols and cyclohexanols are obtained by the catalytic hydrogenation of the condensation products of a ketone with a phenol. The condensation product splits at the bridge between the phenolic residues and each component then takes up either one or seven atoms of hydrogen. Thus p-dioxydiphenyldimethylmethane yields either a mixture of p-isopropylphenol and phenol or a mixture of 4-isopropylcyclohexanol and cyclohexanol. The production of the alkyl phenols is effected with the aid of a catalyst comprising nickel or other hydrogenating catalyst mixed with bismuth, whilst the formation of the alkyl cyclohexanols requires a slightly higher temperature and a catalyst consisting of nickel or other hydrogenating catalyst to which manganese has been added. The use of pressure in either case is advantageous. Examples are also given of the hydrogenation under pressure of 4-dioxy-3-dimethyldiphenyldimethylmethane, obtained by the interaction of acetone and o-cresol in the presence of concentrated hydrochloric acid, whereby on the one hand a mixture of 2-methyl-4-isopropylphenol and o-cresol is obtained and on the other hand a mixture of 2-methyl-4-isopropylcyclohexanol and 2-methylcyclohexanol. Specification 252,594 is referred to.
GB16828/26A 1925-07-04 1926-07-05 Process for the manufacture of alkylated phenols and their hydrogenated products Expired GB254753A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE254753X 1925-07-04

Publications (1)

Publication Number Publication Date
GB254753A true GB254753A (en) 1928-08-09

Family

ID=5959936

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16828/26A Expired GB254753A (en) 1925-07-04 1926-07-05 Process for the manufacture of alkylated phenols and their hydrogenated products

Country Status (1)

Country Link
GB (1) GB254753A (en)

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