CH195871A - Process for the preparation of diphenylacetic acid-2,2-dimethyl-3-diethylaminopropanol ester. - Google Patents
Process for the preparation of diphenylacetic acid-2,2-dimethyl-3-diethylaminopropanol ester.Info
- Publication number
- CH195871A CH195871A CH195871DA CH195871A CH 195871 A CH195871 A CH 195871A CH 195871D A CH195871D A CH 195871DA CH 195871 A CH195871 A CH 195871A
- Authority
- CH
- Switzerland
- Prior art keywords
- dimethyl
- diethylaminopropanol
- ester
- diphenylacetic acid
- metal salt
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung von Diphenylessigsäure-2,2-dimethyl-3- diäthylaminopropanolester. Es wurde gefunden, dass man zu dem im Patente Nr. 191461 beschriebenen Diphenyl essigsäure-2,2-dimethyl-3-diäthylaminopropa- nolester gelangen kann, wenn man auf ein Metallsalz der Diphenylessigsäure einen re aktionsfähigen Ester des 2,2-Dimethyl-3-diä- thylaminopropanols einwirken lässt.
Die so erhaltene Verbindung soll thera peutische Verwendung finden.
<I>Beispiel:</I> 21 Teile Diphenylessigsäure, 20 Teile 1-Chlor-2,2-dimethyl-3-diäthylaminopropan- hydrochlorid (F. 102-104', dargestellt aus 2,2-Dimethyl-3-diäthylaminopropanol und Thionylchlorid in Chloroform), 25 Teile Ka- liumcarbonat und 100 Teile Aceton werden am Rückfluss bis zur beendeten Reaktion ge kocht. Nach dem Abkühlen wird filtriert, mit Aceton gewaschen und das eingedampfte Filtrat in Äther aufgenommen.
Die Äther lösung wird mit verdünnter Natriumcarbonat- lösung gewaschen und über galiumcarbonat getrocknet. Nach dem Verdampfen des Äthers erhält man den Diphenylessigsäure-2,2-dime- thyl-3-diäthylaminopropanolester als Öl, das im Hochvakuum fraktioniert werden kann.
Dieselbe Verbindung kann auch gewonnen werden, wenn man z. B. an Stelle von Ka- liumcarbonat ein anderes Alkalicarbonat ver wendet, oder wenn man ein fertiges Alkali- oder anderes Metallsalz der Diphenylessig- säure mit 1-Chlor-2,2-dimethyl-3-diäthylamino- propan umsetzt. Statt diesem können auch Ester des 2,2-Dimethyl-3-diäthylaminopropa- nols mit anderen Halogenwasserstoffsäuren oder mit Arylsulfonsäuren wie z.
B. Toluolsulfon- säure verwendet werden.
Process for the preparation of diphenylacetic acid-2,2-dimethyl-3-diethylaminopropanol ester. It has been found that the diphenylacetic acid-2,2-dimethyl-3-diethylaminopropanol ester described in the patent no. 191461 can be obtained if a reactive ester of 2,2-dimethyl-3 is added to a metal salt of diphenylacetic acid -diethylaminopropanol can act.
The compound obtained in this way is intended to be used therapeutically.
<I> Example: </I> 21 parts of diphenylacetic acid, 20 parts of 1-chloro-2,2-dimethyl-3-diethylaminopropane hydrochloride (F. 102-104 ', prepared from 2,2-dimethyl-3-diethylaminopropanol and Thionyl chloride in chloroform), 25 parts of potassium carbonate and 100 parts of acetone are refluxed until the reaction has ended. After cooling, it is filtered, washed with acetone and the evaporated filtrate is taken up in ether.
The ether solution is washed with dilute sodium carbonate solution and dried over galium carbonate. After evaporation of the ether, the diphenylacetic acid-2,2-dimethyl-3-diethylaminopropanol ester is obtained as an oil which can be fractionated in a high vacuum.
The same connection can also be obtained by z. For example, instead of potassium carbonate, another alkali metal carbonate is used, or if a finished alkali or other metal salt of diphenyl acetic acid is reacted with 1-chloro-2,2-dimethyl-3-diethylaminopropane. Instead of this, esters of 2,2-dimethyl-3-diethylaminopropanol with other hydrohalic acids or with arylsulfonic acids such as.
B. toluenesulfonic acid can be used.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH189752T | 1934-11-13 | ||
CH195871T | 1934-11-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH195871A true CH195871A (en) | 1938-02-15 |
Family
ID=25721882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH195871D CH195871A (en) | 1934-11-13 | 1934-11-13 | Process for the preparation of diphenylacetic acid-2,2-dimethyl-3-diethylaminopropanol ester. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH195871A (en) |
-
1934
- 1934-11-13 CH CH195871D patent/CH195871A/en unknown
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