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.Info
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/02—Esters of acyclic saturated monocarboxylic acids having the carboxyl group bound to an acyclic carbon atom or to hydrogen
- C07C69/12—Acetic acid esters
- C07C69/16—Acetic 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)
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) |
-
1939
- 1939-08-28 CH CH232367D patent/CH232367A/en unknown
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