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GB808279A - Manufacture of hydrophenanthryl-carboxylic acids and functional derivatives thereof - Google Patents

Manufacture of hydrophenanthryl-carboxylic acids and functional derivatives thereof

Info

Publication number
GB808279A
GB808279A GB13787/55A GB1378755A GB808279A GB 808279 A GB808279 A GB 808279A GB 13787/55 A GB13787/55 A GB 13787/55A GB 1378755 A GB1378755 A GB 1378755A GB 808279 A GB808279 A GB 808279A
Authority
GB
United Kingdom
Prior art keywords
acetoxy
free
diketo
group
testane
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
GB13787/55A
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.)
BASF Schweiz AG
Original Assignee
Ciba 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 Ciba AG filed Critical Ciba AG
Publication of GB808279A publication Critical patent/GB808279A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/40Unsaturated compounds
    • C07C59/76Unsaturated compounds containing keto groups
    • C07C59/90Unsaturated compounds containing keto groups containing singly bound oxygen-containing groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2603/00Systems containing at least three condensed rings
    • C07C2603/02Ortho- or ortho- and peri-condensed systems
    • C07C2603/04Ortho- or ortho- and peri-condensed systems containing three rings
    • C07C2603/22Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
    • C07C2603/26Phenanthrenes; Hydrogenated phenanthrenes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Steroid Compounds (AREA)

Abstract

The invention comprises hydrophenanthrylcarboxylic acids and their esters having the general formula <FORM:0808279/IV (b)/1> in which n represents the whole number 2 or 3, X represents a free or esterified carboxyl group, R represents a free, or an enolized or ketalized oxo group or the group <FORM:0808279/IV (b)/2> , in which R1 represents a free or esterified hydroxyl group, and their derivatives having a double bond extending from the 14-carbon atom and a process for the preparation of such compounds wherein a steroid lactam of the general formula <FORM:0808279/IV (b)/3> in which n and R have the meanings given above, or their derivatives having a double bond extending from the 5-carbon atom, are treated with a solution of an alkali metal hydroxide or an alkali metal alcoholate and, if desired, free hydrophenanthryl carboxylic acids obtained are converted into their esters. The treatment with alkali metal hydroxide may be carried out at elevated temperature and pressure in the presence of an organic solvent, e.g. an alcohol. The substituent in the 3-position in the starting material may be acetoxy or a keto group ketolized with ethylene glycol. In an example, D 2 - 2,13 - dimethyl - 4 - keto - 7a - hydroxy - dodecahydro - phenanthryl - (1) - propionic acid is obtained by heating 3a -acetoxy-11,17-diketo - 17a - azo - D - homo - testane with alcoholic caustic potash under pressure. The corresponding -(1)-propionic methyl ester is obtained by treating the free acid with diazomethane. The products of the process may be used as starting materials in the process of Specification 805,604. Starting materials for use in the present process are prepared by converting the corresponding substituted 11, 17-dioxo-D-homotestanes or androstenes into the 17- or 17a -monoximes and subjecting the latter to a Beckmann re-arrangement. 3a - Acetoxy - 11,17 - diketo - 17a - aza - D-homo-testan is obtained by reacting 3a -acetoxy - 11,17 - diketo - testane with hydroxylamine acetate in ethanol, separating the 3a -acetoxy - 11,17 - diketo - testane 17 - monoxime, heating the latter with p-acetylaminobenzene sulphonic acid chloride and pyridine, heating the reaction mixture with water and extracting with a mixture of ether and chloroform.
GB13787/55A 1954-05-26 1955-05-12 Manufacture of hydrophenanthryl-carboxylic acids and functional derivatives thereof Expired GB808279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH808279X 1954-05-26

Publications (1)

Publication Number Publication Date
GB808279A true GB808279A (en) 1959-02-04

Family

ID=4538263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13787/55A Expired GB808279A (en) 1954-05-26 1955-05-12 Manufacture of hydrophenanthryl-carboxylic acids and functional derivatives thereof

Country Status (1)

Country Link
GB (1) GB808279A (en)

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