CH220974A - Process for the preparation of a basic ester. - Google Patents
Process for the preparation of a basic ester.Info
- Publication number
- CH220974A CH220974A CH220974DA CH220974A CH 220974 A CH220974 A CH 220974A CH 220974D A CH220974D A CH 220974DA CH 220974 A CH220974 A CH 220974A
- Authority
- CH
- Switzerland
- Prior art keywords
- ester
- dimethylaminoethanol
- acetic acid
- act
- reactive
- Prior art date
Links
Landscapes
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung eines basischen Esters. Es wurde gefunden, dass man zu einem basischen Ester gelangen kann, wenn man auf eine Verbindung der Formel:
EMI0001.0001
worin X einen bei der Reaktion sich abspal tenden Rest bedeutet, einen reaktionsfähigen Ester des Dimethylaminoäthanols einwirken lässt.
Der so erhaltene Phenyl-cyclohexyl-essig- säure-dimethylaminoäthanolester bildet ein 01 vom Kp o" 150-155 .
Die neue Verbindung soll therapeutische Verwendung finden.
<I>Beispiel:</I> 22 Teile Phenyl-cyclohexyl-essigsäure, 15 Teile Chloräthyl-dimethylamin-hydrochlo- rid und 35 Teile Kaliumkarbonat werden in 300 Teilen Aceton 24 Stunden auf dem Wasserbade erwärmt. Hierauf wird abfil- triert, die Lösung eingedampft und der Ein dampfrückstand in Äther gelöst. Die äthe rische Lösung wird mit Wasser gewaschen, über Kaliumkarbonat getrocknet und ver dampft.
Durch Destillation des Rückstandes gewinnt man den Phenyl-cyclohegyl-essig- säure-dimethylaminoäthanolester vom Kp o" 150-155 in nahezu quantitativer Ausbeute.
An Stelle von Aceton kann auch ein anderes indifferentes Lösungsmittel verwen det werden.
Dieselbe Verbindung kann auch gewonnen werden, wenn man z. B. an Stelle von Kaliumkarbonat ein anderes Alkalikarbonat verwendet, oder wenn man ein fertiges Al kali- oder anderes Metallsalz der Phenyl- cyclohegyl-essigsäure mit Chloräthyl-dime- thylamin umsetzt.
Denselben Endstoff erhält man ferner z. B. auch durch Umsetzung von Phenyl- cyclohexyl@-essigsäure mit Chloräthyldime- thylamin in Gegenwart eines indifferenten Lösungsmittels wie z. B. Isopropy lalkohol.
Statt des Salzsäureesters können auch Ester des Dimethylaminoäthanols mit andern Halogenwasserstoffsäuren oder z. B. mit Arylsulfonsäuren,wie Toluolsulfonsäure, ver wendet werden.
Process for the preparation of a basic ester. It has been found that a basic ester can be obtained by using a compound of the formula:
EMI0001.0001
wherein X is a residue that splits off in the reaction, a reactive ester of dimethylaminoethanol can act.
The phenyl-cyclohexyl-acetic acid-dimethylaminoethanol ester obtained in this way forms an 01 with a bp of 150-155.
The new compound should find therapeutic use.
<I> Example: </I> 22 parts of phenyl-cyclohexyl-acetic acid, 15 parts of chloroethyl-dimethylamine hydrochloride and 35 parts of potassium carbonate are heated in 300 parts of acetone on a water bath for 24 hours. It is then filtered off, the solution is evaporated and the residue is dissolved in ether. The ethereal solution is washed with water, dried over potassium carbonate and evaporated.
By distilling the residue, the phenyl-cyclohegyl-acetic acid-dimethylaminoethanol ester with a boiling point of 150-155 is obtained in almost quantitative yield.
Instead of acetone, another inert solvent can also be used.
The same connection can also be obtained by z. B. used instead of potassium carbonate, another alkali metal carbonate, or if one reacts a finished alkali or other metal salt of phenyl cyclohegyl acetic acid with chloroethyl dimethylamine.
The same end product is also obtained, for. B. by reacting phenylcyclohexyl @ acetic acid with chloroethyldime- thylamine in the presence of an inert solvent such as. B. Isopropyl alcohol.
Instead of the hydrochloric acid ester, esters of dimethylaminoethanol with other hydrohalic acids or z. B. with arylsulfonic acids, such as toluenesulfonic acid, are used ver.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH220974T | 1938-08-05 | ||
CH532943X | 1938-08-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH220974A true CH220974A (en) | 1942-04-30 |
Family
ID=25726511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH220974D CH220974A (en) | 1938-08-05 | 1938-08-05 | Process for the preparation of a basic ester. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH220974A (en) |
-
1938
- 1938-08-05 CH CH220974D patent/CH220974A/en unknown
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