CH300829A - Process for the preparation of an N-acyl derivative of iminodibenzyl. - Google Patents
Process for the preparation of an N-acyl derivative of iminodibenzyl.Info
- Publication number
- CH300829A CH300829A CH300829DA CH300829A CH 300829 A CH300829 A CH 300829A CH 300829D A CH300829D A CH 300829DA CH 300829 A CH300829 A CH 300829A
- Authority
- CH
- Switzerland
- Prior art keywords
- iminodibenzyl
- preparation
- acyl derivative
- propionyl
- parts
- Prior art date
Links
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines N-Acylderivates des Iminodibenzyls. Gegenstand vorliegenden Patentes ist ein Verfahren zur Herstellung eines N- Acylderi- vates des Iminodibenzyls. Das Verfahren ist dadurch gekennzeichnet, dass man ein N- (a- ITalogen-propionyl)-iminodibenzyl mit Di- äthylamin umsetzt.
Die erhaltene neue Verbindung, das N-(a- Diäthylamino-propionyl)-iminodibenzyl, zeigt einen Schmelzpunkt von 90 . Sie soll als Arzneimittel, insbesondere als Lokalanästhe- tieum, Verwendung finden.
<I>Beispiel:</I> 9,8 Teile Iminodibenzyl werden in 50 Vo- lumteilen abs. Benzol gelöst. In diese Lö sung tropft man 12 Teile a-Brom-propionyl- bromid und kocht anschliessend 10 Stunden unter Rückfloss. Hierauf wird das Lösungs mittel im Vakuum abdestilliert, wobei das N-(a-Brom-propionyl)-iminodibenzyl auskri stallisiert; es kann aus z. B. abs. Äther um kristallisiert werden und zeigt dann einen Schmelzpunkt von 118 bis 119 .
16 Teile N-(a-Brom-propionyl)-imino- dibenzyl werden in 50 V olumteilen abs. Ben zol gelöst und mit 40 Volumteilen Diäthyl- amin versetzt, worauf man 20 Stunden unter Rückfhzss kocht.
Nach dem Abkühlen wäscht man gründlich mit Wasser und extrahiert anschliessend die basischen Anteile mittels verdünnter Salzsäure aus der Benzollösung. Die sauren Auszüge werden alkalisch gestellt und die ausgeschiedene Base in Äther auf genommen. Nach dem Trocknen und Ab dampfen des Äthers erhält man das\ N-(cc- Diäthylamino-propionyl)-iminodibenzyl vom Schmelzpunkt 90 .
Process for the preparation of an N-acyl derivative of iminodibenzyl. The present patent relates to a process for the preparation of an N-acyl derivative of iminodibenzyl. The process is characterized in that an N- (α-ITalogen-propionyl) -iminodibenzyl is reacted with diethylamine.
The new compound obtained, N- (a-diethylamino-propionyl) -iminodibenzyl, has a melting point of 90. It should be used as a medicament, in particular as a local anesthetic.
<I> Example: </I> 9.8 parts of iminodibenzyl are absent in 50 parts by volume. Benzene dissolved. 12 parts of a-bromopropionyl bromide are added dropwise to this solution and the mixture is then refluxed for 10 hours. The solvent is then distilled off in vacuo, the N- (a-bromo-propionyl) -iminodibenzyl crystallizing out; it can consist of B. abs. Ether to be crystallized and then shows a melting point of 118 to 119.
16 parts of N- (a-bromo-propionyl) -imino-dibenzyl are abs in 50 parts by volume. Dissolved benzene and mixed with 40 parts by volume of diethylamine, whereupon the mixture is boiled under reflux for 20 hours.
After cooling, it is washed thoroughly with water and then the basic components are extracted from the benzene solution using dilute hydrochloric acid. The acidic extracts are made alkaline and the precipitated base is taken up in ether. After drying and evaporating the ether, the \ N- (cc-diethylamino-propionyl) -iminodibenzyl of melting point 90 is obtained.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH298324T | 1951-07-11 | ||
CH300829T | 1951-07-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH300829A true CH300829A (en) | 1954-08-15 |
Family
ID=25733954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH300829D CH300829A (en) | 1951-07-11 | 1951-07-11 | Process for the preparation of an N-acyl derivative of iminodibenzyl. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH300829A (en) |
-
1951
- 1951-07-11 CH CH300829D patent/CH300829A/en unknown
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