GB310832A - Manufacture of hydrogenated hydroxy derivatives of the diphenyl series - Google Patents

Manufacture of hydrogenated hydroxy derivatives of the diphenyl series

Info

Publication number
GB310832A
GB310832A GB7659/29A GB765929A GB310832A GB 310832 A GB310832 A GB 310832A GB 7659/29 A GB7659/29 A GB 7659/29A GB 765929 A GB765929 A GB 765929A GB 310832 A GB310832 A GB 310832A
Authority
GB
United Kingdom
Prior art keywords
dioxydiphenylcyclohexane
hydrogenated
products
product
oxydiphenyls
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
GB7659/29A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB7659/29A priority Critical patent/GB310832A/en
Publication of GB310832A publication Critical patent/GB310832A/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
    • 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
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

310,832. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Jan. 28, 1928. Divided on 310,825. Hydrogenated oxydiphenyls are obtained by heating 4: 4<1>-dioxydiphenylcyclohexane, or a homologue thereof, alone or with a catalyst, such as an acid or an acidic or easily dissociating salt. The starting material may be made by the process of Specification 310,825. The products are generally mixtures of tetra- and hexa-hydrogenated oxydiphenyls, the tetra compounds predominating when working under mild conditions, e.g. without any catalyst. In examples, (1) 4: 4<1>. dioxydiphenylcyclohexane is distilled in vacuo, the phenol formed by the decomposition is removed from the distillate, and the product is purified by steam distillation or by recrystallization from water or benzine; a tetrahydro-4-oxydiphenyl is obtained; (2) 4: 4'-dioxydiphenylcyclohexane is heated with zinc chloride; phenol distils off, and the residue is extracted with hydrochloric acid, to remove the zinc chloride, and then dissolved in caustic soda, or acidifying hexahydro-4-oxydiphenyl is obtained; (3) the same product is obtained by passing dry hydrochloric acid gas through melted 4 : 4<1>-dioxydiphenylcyclohexane; and (4) 4 : 4<1>-dioxy-3 : 3'-dimethyldiphenyl-methylcyclohexane (from o-cresol and technical methylcyclohexanone) is distilled in vacuo; the product is a mixture of isomeric hydrogenated oxydimethyldiphenyls. The products are intermediates for the production of dyestuffs and pharmaceutical products.
GB7659/29A 1928-01-28 1928-01-28 Manufacture of hydrogenated hydroxy derivatives of the diphenyl series Expired GB310832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7659/29A GB310832A (en) 1928-01-28 1928-01-28 Manufacture of hydrogenated hydroxy derivatives of the diphenyl series

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7659/29A GB310832A (en) 1928-01-28 1928-01-28 Manufacture of hydrogenated hydroxy derivatives of the diphenyl series

Publications (1)

Publication Number Publication Date
GB310832A true GB310832A (en) 1929-04-29

Family

ID=9837350

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7659/29A Expired GB310832A (en) 1928-01-28 1928-01-28 Manufacture of hydrogenated hydroxy derivatives of the diphenyl series

Country Status (1)

Country Link
GB (1) GB310832A (en)

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