CH208297A - Process for the preparation of a tertiary carbinol of the cyclopentanopolyhydrophenanthrene series. - Google Patents
Process for the preparation of a tertiary carbinol of the cyclopentanopolyhydrophenanthrene series.Info
- Publication number
- CH208297A CH208297A CH208297DA CH208297A CH 208297 A CH208297 A CH 208297A CH 208297D A CH208297D A CH 208297DA CH 208297 A CH208297 A CH 208297A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- acetylene
- tertiary carbinol
- ethynyl
- androstenol
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J1/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J75/00—Processes for the preparation of steroids in general
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Steroid Compounds (AREA)
Description
Verfahren zur Darstellung eines tertiären Carbinols der Cyelopentanopolyhydrophen- anthren-Reihe. Die vorliegende Erfindung betrifft ein Verfahren zur Darstellung von Äthinyl-17- androstendiol-3.17.
Das Verfahren ist dadurch gekennzeich net, dass man d5,E-Androstenol-3-on-17 mit metallorganischen Verbindungen des Ace- tylens zur Umsetzung bringt und das gebil dete Umsetzungsprodukt durch Einwirkung hydrolysierender Mittel spaltet.
Die folgenden Formelbilder mögen zur Veranschaulichung des erfindungsgemässen Verfahrens dienen
EMI0001.0010
Das Äthinyl-17-androstendiol-3.17 soll als Arzneimittel oder als Zwischenprodukt für die Darstellung anderer physiologisch wert voller Stoffe Verwendung finden. Beispiel: 0,7 g Magnesium, 4,6 g Brombenzol und 50 cm' Äther werden während 30 Stunden unter ständigem Durchleiten von Acetylen zum schwachen Sieden erwärmt. Dazu gibt man unter Rühren, Schütteln und ständigem Durchleiten von Acetylen eine Lösung von 0,5 g A5,6-Androstenol-3-on-17 in 20 cm' Äther.
Nach 3 Tagen wird das Reaktions gemisch mit Eiswasser versetzt, mit ver dünnter Schwefelsäure schwach angesäuert und mit Äther ausgezogen. Nach dem Trock nen und Verdampfen des Äthers entfernt man aus dem Rückstand unverändertes Keton mittels Semicarbazid und kristallisiert das .Äthirry1-17-androstendiol-3.17 aus verdünn tem Alkohol.
Der Schmelzpunkt des Äthinyl-andro- sterrdiol-3 .17 liegt bei ?40 0; [a]D = -130 0 (Dioxan). Erhalten werden etwa 0,13 g, ausser dem werden etwa 0,31 g Sernicarbazon des Androstenolons zurückgewonnen. Die Aus beute beträgt somit 40 0/'o.
Wenn der ölige Rückstand nicht von selbst kristallisiert, empfiehlt es sich, daraus rnit Silbernitrat die schwerlöslielre Silberver bindung herzustellen und abzuscheiden, diese dann mit Salzsäure wieder zu zerlegen und für sich zur Kristallisation zu bringen.
Process for the preparation of a tertiary carbinol of the cyelopentanopolyhydrophenanthene series. The present invention relates to a method for the preparation of ethynyl-17-androstenediol-3.17.
The process is characterized in that d5, E-androstenol-3-one-17 is reacted with organometallic compounds of acetylene and the reaction product formed is cleaved by the action of hydrolyzing agents.
The following formula images serve to illustrate the method according to the invention
EMI0001.0010
Ethynyl-17-androstenediol-3.17 should be used as a medicinal product or as an intermediate for the preparation of other physiologically valuable substances. Example: 0.7 g of magnesium, 4.6 g of bromobenzene and 50 cm 'of ether are heated to a gentle boil for 30 hours while constantly passing acetylene through. A solution of 0.5 g of A5,6-androstenol-3-one-17 in 20 cm of ether is added with stirring, shaking and constant passage of acetylene.
After 3 days, the reaction mixture is mixed with ice water, weakly acidified with dilute sulfuric acid and extracted with ether. After drying and evaporation of the ether, unchanged ketone is removed from the residue using semicarbazide and the .Äthirry1-17-androstenediol-3.17 is crystallized from dilute alcohol.
The melting point of ethynyl-androsterrdiol-3 .17 is? 40 0; [a] D = -130 0 (dioxane). About 0.13 g are obtained, in addition about 0.31 g of sernicarbazone of androstenolone are recovered. The yield is thus 40%.
If the oily residue does not crystallize by itself, it is advisable to use silver nitrate to produce the poorly soluble silver compound and to separate it, then to break it down again with hydrochloric acid and to crystallize it on its own.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE208297X | 1935-11-09 | ||
CH189749T | 1936-11-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH208297A true CH208297A (en) | 1940-01-15 |
Family
ID=25721881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH208297D CH208297A (en) | 1935-11-09 | 1936-11-07 | Process for the preparation of a tertiary carbinol of the cyclopentanopolyhydrophenanthrene series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH208297A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE959187C (en) * | 1953-06-27 | 1957-02-28 | Chimiotherapie Lab Franc | Process for the preparation of 11-keto-17 ª ‡ -aethynyltestosterone or 11ª ‰ -oxy-17-ª ‡ -aethynyltestosterone |
-
1936
- 1936-11-07 CH CH208297D patent/CH208297A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE959187C (en) * | 1953-06-27 | 1957-02-28 | Chimiotherapie Lab Franc | Process for the preparation of 11-keto-17 ª ‡ -aethynyltestosterone or 11ª ‰ -oxy-17-ª ‡ -aethynyltestosterone |
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