CH332393A - Process for the preparation of 17-oxy-20-keto-steroids - Google Patents

Process for the preparation of 17-oxy-20-keto-steroids

Info

Publication number
CH332393A
CH332393A CH332393DA CH332393A CH 332393 A CH332393 A CH 332393A CH 332393D A CH332393D A CH 332393DA CH 332393 A CH332393 A CH 332393A
Authority
CH
Switzerland
Prior art keywords
keto
steroids
oxy
preparation
oxydo
Prior art date
Application number
Other languages
German (de)
Inventor
Heinz Dr Oeppinger
Ludwig Dr Schoernig
Original Assignee
Hoechst 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 Hoechst Ag filed Critical Hoechst Ag
Publication of CH332393A publication Critical patent/CH332393A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J7/00Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J75/00Processes for the preparation of steroids in general

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Steroid Compounds (AREA)

Description

  

      Verfahren        zur        Herstellung    von     17-Oxy-20.keto-steroiden       Gegenstand des Hauptpatentes Nr.     3t20947     ist ein Verfahren zur     Herstellung    von     17-          Oxy-20-keto-steroiden,    welches dadurch ge  kennzeichnet ist, dass man     16,17-Oxydo-20-          keto-steroide    in Form einer     Lösung    mit  Salzen des     Jodwasserstoffes    und aus diesen  Salzen Jodwasserstoff freisetzenden organi  schen. Säuren umsetzt und die erhaltenen       Jodhydrine    reduziert.  



  Es wurde nun gefunden, dass sich das  Verfahren mit noch besseren Ausbeuten durch  führen lässt, wenn man     16,17-Oxydo-20-keto-          steroide    mit     Jodwasserstoff        in        Anwesenheit     von     Lösungsmitteln        umsetzt        und    die so er  haltenen     Jodhydrine    reduziert.  



  Es ist     also    nicht erforderlich, den     Jod-          wasserstoff    in der Umsetzungsmischung selbst  zu erzeugen, sondern man kann mit Vorteil  von Lösungen des     Jodwasserstoffes    ausgehen.       Als.16,17-Oxydo-20,keto-steroide    kommen zum  Beispiel die im Hauptpatent genannten Ver  bindungen in Betracht, vorzugsweise     16,17-          Oxydo    -     progesteron    und     16;17-Oxydo-d4-pre-          gnen-21-ol-3,20-dion-acetat.     



  Als Lösungsmittel kommen organische  Säuren, wie     beispielsweise    Ameisensäure,  Essigsäure,     Propionsäure,    niedere     Ketone,    wie  zum Beispiel Aceton,     Äthylmethylketon,    Äther,  wie     Diäthyläther,    oder     cyclische    Äther, wie       Dioxan,        Tetrahydrofuran    u. ä., in Betracht.

           Zweckmässigerweise        verwendet    man     möglichst     konzentrierte     Lösungen    von     Jodwasserstoff     in organischen Säuren, wobei     man    üblicher  weise     Eisessiglösungen    wegen der einfachen       Zugänglichkeit    verwenden wird.  



  Das vorliegende Verfahren bietet gegen  über dem im Hauptpatent beschriebenen  Verfahren den Vorteil, dass die Ausbeuten       uni        10        bis        20        %        höher        sind.     



  Die nach dem Verfahren der vorliegenden,  Erfindung     gewonnenen    Verbindungen sind       Nebennierenrindenhormone    oder     können        als          Zwischenprodukte    zur Herstellung derselben  Verwendung finden.  



       Beispiel     1 g     16,17-Oxydo    - 44 -     pregnen-2.1-ol-3,20-          dion-acetat    wird in 3     cm3    Eisessig gelöst  und die Lösung nach Zugabe von 6     em3     Äther langsam unter schwachem     Kühlen    mit  1,5     em3    30prozentiger     Jodwasserstofflösung     in Eisessig versetzt. Das Reaktionsgemisch  wird 20 Minuten bei     Zimmertemperatur    und  dann 10     Minuten    bei 0  C stehengelassen.

    Der Niederschlag     wird        abgenutscht,    mit  Äther gewaschen und bei     515     C im Vakuum  kurz     getrocknet.    Man erhält 1,3 g     16-Jod-          d4-pregnen-17*,21-diol    - 3,20 -     dion    -     2i1-        acetat     vom Schmelzpunkt     1'63    bis 16'5  C     (unkorr.     Zersetzung).

        Das so erhaltene     Jodhydrin    ist sehr rein  und lässt sich nach dem im Hauptpatent be  schriebenen Verfahren nahezu quantitativ in       44-Pregnen-17@a,21-diol    - 3,20 -     dion    - 21-     acetat          (Reichsteins     Substanz S  - Acetat) vom       Schmelzpunkt    231 bis 234  C     (unkorr.)    über  führen.         sungsmitte'ln    umsetzt und die so erhaltenen       Jodhydrine    reduziert.  



       UNTERANSPRÜCHE     1. Verfahren nach Patentanspruch, da  durch gekennzeichnet, dass eine organische  Säure als     Lösungsmittel    verwendet wird.  



  2. Verfahren nach Patentanspruch und  Unteranspruch 1, dadurch gekennzeichnet,  dass Eisessig als Lösungsmittel verwendet  wird.



      Process for the production of 17-oxy-20.keto-steroids The subject of the main patent no. 3t20947 is a process for the production of 17-oxy-20-keto-steroids, which is characterized in that 16,17-Oxydo-20 - keto-steroids in the form of a solution with salts of hydrogen iodide and organic rule releasing hydrogen iodide from these salts. Acids and reduces the iodine hydrins obtained



  It has now been found that the process can be carried out with even better yields if 16,17-oxydo-20-keto steroids are reacted with hydrogen iodide in the presence of solvents and the iodohydrins thus obtained are reduced.



  It is therefore not necessary to generate the hydrogen iodide in the reaction mixture itself, but solutions of the hydrogen iodide can be used with advantage. As 16,17-Oxydo-20, keto-steroids, for example, the compounds mentioned in the main patent come into consideration, preferably 16,17-Oxydo-progesterone and 16; 17-Oxydo-d4-pregnen-21-ol- 3,20-dione acetate.



  The solvents used are organic acids such as formic acid, acetic acid, propionic acid, lower ketones such as acetone, ethyl methyl ketone, ethers such as diethyl ether, or cyclic ethers such as dioxane, tetrahydrofuran and the like. Ä., into consideration.

           Conveniently, concentrated solutions of hydrogen iodide in organic acids are used, and glacial acetic acid solutions are usually used because of their easy accessibility.



  The present process offers the advantage over the process described in the main patent that the yields are uni 10 to 20% higher.



  The compounds obtained by the process of the present invention are adrenal cortical hormones or can be used as intermediates for the preparation of the same.



       EXAMPLE 1 g of 16,17-Oxydo-44-pregnen-2.1-ol-3,20-dione acetate is dissolved in 3 cm3 of glacial acetic acid and, after adding 6 cm3 of ether, the solution is slowly cooled with 1.5 cm3 of 30 percent hydrogen iodine solution added to glacial acetic acid. The reaction mixture is left to stand at room temperature for 20 minutes and then at 0 ° C. for 10 minutes.

    The precipitate is filtered off with suction, washed with ether and briefly dried at 515 ° C. in vacuo. 1.3 g of 16-iodo-d4-pregnen-17 *, 21-diol-3.20-dione-2i1-acetate with a melting point of 1.63 to 16.5 ° C. (uncorrupted decomposition) are obtained.

        The iodohydrin obtained in this way is very pure and can be converted almost quantitatively into 44-Pregnen-17 @ a, 21-diol - 3.20 - dione - 21-acetate (Reichstein's substance S - acetate) from the melting point using the method described in the main patent 231 to 234 C (uncorrect). sungsmitte'ln converts and reduced the iodine hydrins thus obtained.



       SUBClaims 1. The method according to claim, characterized in that an organic acid is used as the solvent.



  2. The method according to claim and dependent claim 1, characterized in that glacial acetic acid is used as the solvent.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung von 17-Oxy- 20 - keto - Steroiden, dadurch gekennzeichnet, dass man 1'6,17-Oxydo-20-keto-steroide mit Jod wasserstoffsäure in Anwesenheit von Lö- PATENT CLAIM Process for the production of 17-Oxy- 20 - keto - steroids, characterized in that 1'6,17-Oxydo-20-keto-steroids with hydroiodic acid in the presence of Lö-
CH332393D 1953-11-09 1954-11-06 Process for the preparation of 17-oxy-20-keto-steroids CH332393A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE332393X 1953-11-09
CH320947T 1954-11-06

Publications (1)

Publication Number Publication Date
CH332393A true CH332393A (en) 1958-08-31

Family

ID=25736270

Family Applications (1)

Application Number Title Priority Date Filing Date
CH332393D CH332393A (en) 1953-11-09 1954-11-06 Process for the preparation of 17-oxy-20-keto-steroids

Country Status (1)

Country Link
CH (1) CH332393A (en)

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