CH232367A - Process for the preparation of a, a'-di- (p-acetoxyphenyl) -a, a'-diethyl-ethane. - Google Patents

Process for the preparation of a, a'-di- (p-acetoxyphenyl) -a, a'-diethyl-ethane.

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Publication number
CH232367A
CH232367A CH232367DA CH232367A CH 232367 A CH232367 A CH 232367A CH 232367D A CH232367D A CH 232367DA CH 232367 A CH232367 A CH 232367A
Authority
CH
Switzerland
Prior art keywords
diethyl
acetoxyphenyl
ethane
hydrogenation
preparation
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Schering
Original Assignee
Ag Schering
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 Ag Schering filed Critical Ag Schering
Publication of CH232367A publication Critical patent/CH232367A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/02Esters of acyclic saturated monocarboxylic acids having the carboxyl group bound to an acyclic carbon atom or to hydrogen
    • C07C69/12Acetic acid esters
    • C07C69/16Acetic acid esters of dihydroxylic compounds

Landscapes

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

Description

  

  Verfahren zur Herstellung von     a,a'-1)i-(p-aeetogyphenyl)-ad-diäthyl-äthan.            Gegenstand    des vorliegenden Patentes  ist. ein Verfahren zur Herstellung des       oestrogen    wirksamen, als Heilmittel und als  Zwischenprodukt zur Herstellung von Heil  mitteln verwendbaren     a,a',Di,(p-acetoxy-          phenyl)-a,a'-diäthyl-äthan.s,        -das    dadurch ge  kennzeichnet ist,     dass    man das     a,a'-Di-(p-          acetoxyphenyl)-a,a'-diäthyl-äthen    der Ein  wirkung     hydrierender    Mittel unterwirft,

   wo  durch die     aliphatische    Doppelbindung des  Moleküls     abgesättigt    wird.  



  Zu     :diesem    Zwecke wird das Ausgangs  material in einem geeigneten Lösungsmittel,  beispielsweise in Äthanol, Methanol, Aceton  oder Eisessig, der Einwirkung von Wasser  stoff unterworfen,     vorzugsweise    in Gegen  wart eines- Hydrierung     katalysators.    Als  Katalysatoren :eignen sich besonders Edel  metallkatalysatoren, wie Platinoxyd- oder       Palladiumkatalysatoren.    Mit diesen Mitteln       lä.sst    sich die Hydrierung bereits bei Zimmer  temperatur durchführen. Das Verfahrenspro  dukt wird in fast quantitativer Ausbeute er-    halten. Es ist mit. dem nach Patent Nr. 22d951  erhältlichen Produkt identisch.  



  <I>Beispiel:</I>  Man behandelt eine Lösung von 2 g     a,a'-          Di-        (p,-acetoxyphenyl)-a,a'-diäthyl-äthen    in  Aceton bei Zimmertemperatur in Gegenwart  eines     Palladiumkatalysato:rs    mit Wasserstoff.  Nach Aufnahme etwa eines     Mol    Wasserstoff       bleibt    die Reaktion stehen. Man filtriert vom  Katalysator ab, :dampft das Aceton ab und  kristallisiert :den Rückstand     aus    Methanol um.  



  Das     so,erhaltene        a,,a'-Di-,(p-acetogyphenyl)-          u,ä-diäthyl-äthan    fällt in Form farbloser       Kristalle    in einer Ausbeute von 1,8 g an und  schmilzt bei     13:9 .  



  Process for the preparation of a, a'-1) i- (p-aeetogyphenyl) -ad-diethyl-ethane. The subject of the present patent is. a process for the production of the estrogenic, as a remedy and as an intermediate product for the production of remedies usable a, a ', di, (p-acetoxyphenyl) -a, a'-diethyl-ethane.s, -das characterized is that the a, a'-di- (p-acetoxyphenyl) -a, a'-diethyl-ethene is subjected to the action of hydrogenating agents,

   where the aliphatic double bond of the molecule saturates.



  For this purpose, the starting material in a suitable solvent, for example in ethanol, methanol, acetone or glacial acetic acid, subjected to the action of hydrogen, preferably in the presence of a hydrogenation catalyst. As catalysts: noble metal catalysts such as platinum oxide or palladium catalysts are particularly suitable. With these agents, the hydrogenation can be carried out at room temperature. The process product is obtained in almost quantitative yield. It is with. identical to the product available under patent no. 22d951.



  <I> Example: </I> A solution of 2 g of a, a'-di- (p, -acetoxyphenyl) -a, a'-diethyl-ethene in acetone at room temperature in the presence of a palladium catalyst is treated with hydrogen. After absorbing about one mole of hydrogen, the reaction stops. The catalyst is filtered off, the acetone is evaporated off and the residue is recrystallized from methanol.



  The thus obtained a ,, a'-di -, (p-acetogyphenyl) - u, a-diethyl-ethane is obtained in the form of colorless crystals in a yield of 1.8 g and melts at 13: 9.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von a,a'-Di- (p-acetoxyphenyl)-a,a'-.diäthyl=äthan,:dadurch gekennzeichnet, dass man a,a'-Di-@(p-,tcetoxy- phenyl)-a,a'-di@äthyl-äthen zur Absättigung der aliphatischen Doppelbindung der Ein wirkung hydrierender Mittel unterwirft. Die Verbindung bildet farblose Kristalle vom Schmelzpunkt l:39". UN TERANSPRüCHE 1. PATENT CLAIM: Process for the preparation of a, a'-di- (p-acetoxyphenyl) -a, a '-. Diethyl = ethane,: characterized in that a, a'-di - @ (p-, tcetoxyphenyl ) -a, a'-di @ ethyl-ethene to saturate the aliphatic double bond subject to the action of hydrogenating agents. The compound forms colorless crystals with a melting point of 1:39 ". UN TERCLAIMS 1. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man die Hy drie- rung des Ausgangsstoffes in einem Lösungs mittel durchführt. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man die Hydrie- rung mit katalytisch aktiviertem Wasserstoff durchführt. 3. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man als Hydrie- runbskatalysatar einen Edelmetallkatalysa- tor benutzt. Process according to patent claim, characterized in that the hydrogenation of the starting material is carried out in a solvent. Process according to patent claim, characterized in that the hydrogenation is carried out with catalytically activated hydrogen. 3. The method according to claim, characterized in that a noble metal catalyst is used as the hydrogenation catalyst.
CH232367D 1938-08-29 1939-08-28 Process for the preparation of a, a'-di- (p-acetoxyphenyl) -a, a'-diethyl-ethane. CH232367A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE232367X 1938-08-29

Publications (1)

Publication Number Publication Date
CH232367A true CH232367A (en) 1944-05-31

Family

ID=5880545

Family Applications (1)

Application Number Title Priority Date Filing Date
CH232367D CH232367A (en) 1938-08-29 1939-08-28 Process for the preparation of a, a'-di- (p-acetoxyphenyl) -a, a'-diethyl-ethane.

Country Status (1)

Country Link
CH (1) CH232367A (en)

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