CH155045A - Process for the preparation of 1-phenyl-2-benzylaminopropanol-1. - Google Patents
Process for the preparation of 1-phenyl-2-benzylaminopropanol-1.Info
- Publication number
- CH155045A CH155045A CH155045DA CH155045A CH 155045 A CH155045 A CH 155045A CH 155045D A CH155045D A CH 155045DA CH 155045 A CH155045 A CH 155045A
- Authority
- CH
- Switzerland
- Prior art keywords
- phenyl
- benzylaminopropanol
- preparation
- benzyl halide
- aminopropanol
- 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 von 1-Phenyl-2-benzylaminopropanol-1. Im Hauptpatent ist die Darstellung von 1-Phenyl-2-benzylmethylaminopropanol-1 be schrieben, welches durch Behandlung von 1-Phenyl-2-methylaminopropanol-1 mit Ben- zylhalogenid erhalten wird.
Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Darstellung von 1-Phe- nyl-2-benzylaminopropanol-1, welches dadurch gekennzeichnet ist, dass man auf 1-Phenyl-2- aminopropanol-1 Benzylhalogenid einwirken lässt. Das chlorwasserstoffsaure Salz des erhal tenen Körpers ist löslich in Wasser, bildet farblose Kristalle und schmilzt bei 192-193 C. Das bisher nicht bekannte Verfahrensprodukt ist ebenso wie das nach dem Verfahren des Hauptpatentes erhältliche Produkt von her vorragender physiologischer Wirkung.
Insbe sondere zeigt die Substanz ein gutes Anästhe- sierungsvermögen und spasmolysche Wirkung und kann in der Therapie, zum Beispiel bei Asthma, Verwendung finden. <I>Beispiel:</I> 15,1 gr 1-Phenyl-2-aminopropanol-1 wer den in 75 cm' Benzol gelöst und mit 8,5 gr Benylbromid versetzt. Nach kurzem Erwär inen auf dem Wasserbad wird die Flüssig keit etwa 1 Tag bei Zimmertemperatur ste hen gelassen. Man saugt alsdann vom ge bildeten 1-Phenyl-2-aminopropaiiol-l-bromhy- drat ab und dampft das Filtrat im Vakuum ein.
Der erhaltene Rückstand wird in Wasser und Äther aufgenommen, abgetrennt und die ätherische Lösung über Natriumsulfat ge trocknet. Man filtriert und fällt durch Ein leiten von gasförmiger Salzsäure das 1-Plie- iiyl-2=benzylaminopropanol-l-Chlorhydrat aus, das aus Methanol und Äther umkristallisiert, bei 192-193 C schmilzt. Ausbeute fast quantitativ.
Process for the preparation of 1-phenyl-2-benzylaminopropanol-1. The main patent describes the preparation of 1-phenyl-2-benzylmethylaminopropanol-1, which is obtained by treating 1-phenyl-2-methylaminopropanol-1 with benzyl halide.
The present invention relates to a process for the preparation of 1-phenyl-2-benzylaminopropanol-1, which is characterized in that 1-phenyl-2-aminopropanol-1 benzyl halide is allowed to act. The hydrochloric acid salt of the body obtained is soluble in water, forms colorless crystals and melts at 192-193 C. The previously unknown product is just like the product obtainable by the process of the main patent of excellent physiological effect.
In particular, the substance shows good anesthesia and spasmolytic effect and can be used in therapy, for example for asthma. <I> Example: </I> 15.1 g of 1-phenyl-2-aminopropanol-1 are dissolved in 75 cm of benzene and mixed with 8.5 g of benyl bromide. After briefly heating up on the water bath, the liquid is left to stand for about 1 day at room temperature. The 1-phenyl-2-aminopropaiiol-1-bromohydrate formed is then suctioned off and the filtrate is evaporated in vacuo.
The residue obtained is taken up in water and ether, separated off and the ethereal solution is dried over sodium sulfate. It is filtered and by passing in gaseous hydrochloric acid the 1-plie-iiyl-2-benzylaminopropanol-1-chlorohydrate is precipitated, which is recrystallized from methanol and ether and melts at 192-193.degree. Almost quantitative yield.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE155045X | 1930-01-31 | ||
CH153038T | 1931-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH155045A true CH155045A (en) | 1932-05-31 |
Family
ID=25716118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH155045D CH155045A (en) | 1930-01-31 | 1931-01-29 | Process for the preparation of 1-phenyl-2-benzylaminopropanol-1. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH155045A (en) |
-
1931
- 1931-01-29 CH CH155045D patent/CH155045A/en unknown
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