DE1028569B - Process for the preparation of 7, 11-diketones of the ergostane series - Google Patents

Process for the preparation of 7, 11-diketones of the ergostane series

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Publication number
DE1028569B
DE1028569B DEM31721A DEM0031721A DE1028569B DE 1028569 B DE1028569 B DE 1028569B DE M31721 A DEM31721 A DE M31721A DE M0031721 A DEM0031721 A DE M0031721A DE 1028569 B DE1028569 B DE 1028569B
Authority
DE
Germany
Prior art keywords
ergostane
series
diketones
keto
preparation
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.)
Pending
Application number
DEM31721A
Other languages
German (de)
Inventor
John M Chemerda
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.)
Merck and Co Inc
Original Assignee
Merck and Co Inc
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 Merck and Co Inc filed Critical Merck and Co Inc
Publication of DE1028569B publication Critical patent/DE1028569B/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J9/00Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of more than two carbon atoms, e.g. cholane, cholestane, coprostane

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

Description

Verfahren zur Herstellung von 7,11-Diketonen der Ergostanreihe Die Erfindung betrifft ein Verfahren zur Herstellung von 7,11-Diketonen der Ergostanreihe aus den entsprechenden d e(9)-7-Keto-11-oxy-verbindungen.Process for the preparation of 7,11-diketones of the Ergostane series The invention relates to a process for the production of 7,11-diketones of the ergostane series from the corresponding d e (9) -7-keto-11-oxy compounds.

Die Erzeugnisse sind als Zwischenprodukte für die Synthese von Steroidhormonen mit llständigem Sauerstoffatom, wie die Nebennierenrindenhormone Corticosteron, Cortison und Kendalls Verbindung F, wertvoll.The products are used as intermediates for the synthesis of steroid hormones with a complete oxygen atom, such as the adrenal cortex hormone corticosterone, Cortisone and Kendall's compound F, valuable.

Diese 7,11-Diketo-steroide lassen sich durch Umsetzung einer d 8(9)-7-Keto-11-oxy-verbindung der Ergostanreihe mit alkoholischer Alkalihydroxydlösung bei erhöhter Temperatur von etwa 150°C herstellen. Die Reaktion läßt sich durch die folgende Formel darstellen, in der nur die Ringe B und C wiedergegeben sind: Als Ausgangsstoffe für das vorliegende Verfahren kommen z. B. in Betracht: d8(9),22-7-Keto-11-oxy-ergostadien, de(9),22-3,11-Dioxy-7-keto-ergostadien, d8(9),22-3,11-dioxy-7-keto-stigmastadien. Für die Herstellung der Ausgangsstoffe wird im Rahmen des vorliegenden Patentes Schutz nicht begehrt.These 7,11-diketosteroids can be produced by reacting a d 8 (9) -7-keto-11-oxy compound of the ergostane series with an alcoholic alkali hydroxide solution at an elevated temperature of about 150.degree. The reaction can be represented by the following formula, in which only rings B and C are shown: As starting materials for the present process, for. B. possible: d8 (9), 22-7-keto-11-oxy-ergostadiene, de (9), 22-3,11-dioxy-7-keto-ergostadiene, d8 (9), 22-3, 11-dioxy-7-keto-stigmastadien. Protection is not sought for the manufacture of the starting materials in the context of the present patent.

Bei dieser Reaktion erfolgt eine Umlagerung des an das llständige Kohlenstoffatom bzw. an das Sauerstoffatom der llständigen Hydroxylgruppe gebundenen Wasserstoffatoms an die Kohlenstoffatome in 8- und 9-Stellung, wodurch die 8 (9)ständige Doppelbindung gesättigt wird. Als alkoholische Lösung eines Alkalihydroxyds verwendet man zweckmäßig z. B. äthylalkoholische Kalilauge, methylalkoholische Kalilauge oder methylalkoholische Natronlauge. Bei einer Temperatur von etwa 150°C ist die Reaktion gewöhnlich nach etwa 8 Stunden im wesentlichen beendet.In this reaction there is a rearrangement of the permanent Carbon atom or bonded to the oxygen atom of the terminal hydroxyl group Hydrogen atom to the carbon atoms in the 8- and 9-position, making the 8 (9) permanent Double bond is saturated. Used as an alcoholic solution of an alkali hydroxide one expedient z. B. ethyl alcoholic potassium hydroxide solution, methyl alcoholic potassium hydroxide solution or methyl alcoholic sodium hydroxide solution. At a temperature of about 150 ° C the reaction takes place usually essentially complete in about 8 hours.

Stellt man das als Ausgangsstoff verwendete 48(9)-7-Keto-11-oxy-steroid z. B. durch Hydrolyse eines 3,7-Diacyloxy-9,11-epoxy-steroids her, so ist es nicht erforderlich, das Produkt aus dem Reaktionsgemisch zu isolieren, sondern man kann die Hydrolyse unmittelbar bis zur Bildung des 7,11-Diketo-steroids fortführen.If you put the 48 (9) -7-keto-11-oxy-steroid used as the starting material z. B. by hydrolysis of a 3,7-diacyloxy-9,11-epoxy steroid, so it is not required to isolate the product from the reaction mixture, but you can continue the hydrolysis immediately until the 7,11-diketo-steroid is formed.

Das folgende Ausführungsbeispiel soll die Erfindung erläutern.The following exemplary embodiment is intended to explain the invention.

Beispiel 100 mg d',22-3,7-Diacetoxy-9,11-epoxy-ergostadien werden am Rückflußkühler mit S ccm einer 5°/oigen Lösung von Kaliumhydroxyd in Methanol erhitzt. Die so erhaltene Reaktionslösung enthält d8(9),22-3,11-Dioxy-7-keto-ergostadien, welches man gewünschtenfalls durch Verdampfen des Methanols im Vakuum, Verrühren der verbleibenden Lösung mit Wasser, Filtration und Trocknung des Niederschlages gewinnen kann.Example 100 mg of d ', 22-3,7-diacetoxy-9,11-epoxy-ergostadiene become on the reflux condenser with 1 cc of a 5% solution of potassium hydroxide in methanol heated. The reaction solution obtained in this way contains d8 (9), 22-3,11-dioxy-7-keto-ergostadiene, which, if desired, can be obtained by evaporating the methanol in vacuo and stirring the remaining solution with water, filtration and drying of the precipitate can win.

Statt das ds(9),22-3,11-Dioxy-7-keto-ergostadien zu isolieren, wird die alkalische methylalkoholische, diese Verbindung enthaltende Reaktionslösung unter Druck etwa 8 Stunden auf etwa 150°C erhitzt. Das Reaktionsgemisch wird auf Raumtemperatur gekühlt, dann wird Wasser zugesetzt und der Niederschlag abfiltriert und durch chromatographische Behandlung über mit Säure gewaschener Tonerde gereinigt, wodurch man praktisch reines 422-3-Oxy-7,11-diketo-ergosten erhält; F. = 198 bis 200°C.Instead of isolating the ds (9), 22-3,11-dioxy-7-keto-ergostadiene, the alkaline methyl alcoholic reaction solution containing this compound heated under pressure to about 150 ° C. for about 8 hours. The reaction mixture is on Cooled to room temperature, then water is added and the precipitate is filtered off and purified by chromatographic treatment on alumina washed with acid, whereby practically pure 422-3-oxy-7,11-diketo-ergosten is obtained; F. = 198 to 200 ° C.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von 7,11-Diketonen der Ergostanreihe, dadurch gekennzeichnet, daß man eine d8(9)-7-Keto-11-oxy-verbindung der Ergostanreihe mit einer alkoholischen Lösung eines Alkalihydroxyds bei etwa 150°C behandelt. Claim: Process for the production of 7,11-diketones of the ergostane series, characterized in that a d8 (9) -7-keto-11-oxy compound of the ergostane series is treated with an alcoholic solution of an alkali metal hydroxide at about 150 ° C.
DEM31721A 1951-08-03 1952-08-04 Process for the preparation of 7, 11-diketones of the ergostane series Pending DE1028569B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1028569XA 1951-08-03 1951-08-03

Publications (1)

Publication Number Publication Date
DE1028569B true DE1028569B (en) 1958-04-24

Family

ID=22292021

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM31721A Pending DE1028569B (en) 1951-08-03 1952-08-04 Process for the preparation of 7, 11-diketones of the ergostane series

Country Status (1)

Country Link
DE (1) DE1028569B (en)

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