CH300830A - 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
- CH300830A CH300830A CH300830DA CH300830A CH 300830 A CH300830 A CH 300830A CH 300830D A CH300830D A CH 300830DA CH 300830 A CH300830 A CH 300830A
- Authority
- CH
- Switzerland
- Prior art keywords
- iminodibenzyl
- preparation
- acyl derivative
- propionyl
- dimethylamine
- Prior art date
Links
Landscapes
- 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 2N#-Acylde- rivates des Iminodibenzyls. Das Verfahren ist dadurch gekennzeichnet, dass man ein N-(a-Halogen-propionyl)-iminodibenzyl mit Dimethylamin umsetzt. .
Die erhaltene neue Verbindung, das N-(a- Dimethylamino-propionyl)-iminodibenzyl, zeigt einen Schmelzpunkt von 109 bis 1l0 . Sie soll als Arzneimittel, insbesondere als Lokal- anästheticum, Verwendung finden.
Beispiel: 9,8 Teile Iminodibenzyl werden in 50 Vo- lumteilen abs. Benzol gelöst. In diese Lösung tropft man 12 Teile a-Brom-propionylbromid find kocht anschliessend 10 Stunden unter R.ückfluss. Hierauf wird das Lösungsmittel im Vakuum abdestilliert, wobei das N-(a- Drom-propionyl)-iminodibenzyl auskristalli siert; es kann aus z.
B. abs. Äther umkristal lisiert werden und zeigt dann einen Schmelz punkt von 118 bis 119 .
Das so erhaltene N-(a-Brom-propionyl)-- iminodibenzyl wird mit 6 Teilen Dimethyl- amin, gelöst in 25 Teilen Benzol, zunächst 12 Stunden stehen gelassen und hierauf noch eine Stunde unter Rückfluss gekocht. Dann wird mit Wasser gewaschen und die ba sischen Anteile der Benzollö.ung mit ver dünnter Salzsäure entzogen. Die salzsaure Lösung wird alkalisch gestellt, die ausgeschie dene Base in Äther aufgenommen, die äthe rische Lösung getrocknet und der Äther ab gedampft.
Man erhält das N-(a-Dimethyl- amino-propionyl)-iminodibenzyl, das bei 109 bis 110 schmilzt.
Process for the preparation of a N. acyl derivative of iminodibenzyl. The subject of the present patent is a process for the preparation of a 2N # acyl derivative of iminodibenzyl. The process is characterized in that an N- (a-halo-propionyl) -iminodibenzyl is reacted with dimethylamine. .
The new compound obtained, the N- (a-dimethylamino-propionyl) -iminodibenzyl, has a melting point of 109 to 10. It should be used as a medicament, in particular as a local anesthetic.
Example: 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-drom-propionyl) -iminodibenzyl crystallizing out; it can consist of
B. abs. Ether are recrystallized and then shows a melting point of 118 to 119.
The N- (a-bromo-propionyl) - iminodibenzyl obtained in this way is initially left to stand for 12 hours with 6 parts of dimethylamine dissolved in 25 parts of benzene and then refluxed for a further hour. It is then washed with water and the basic components of the benzene solution are removed with dilute hydrochloric acid. The hydrochloric acid solution is made alkaline, the excreted base is taken up in ether, the ethereal solution is dried and the ether is evaporated.
N- (α-Dimethylamino-propionyl) -iminodibenzyl, which melts at 109 to 110, is obtained.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH298324T | 1951-07-11 | ||
CH300830T | 1951-07-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH300830A true CH300830A (en) | 1954-08-15 |
Family
ID=25733955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH300830D CH300830A (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) | CH300830A (en) |
-
1951
- 1951-07-11 CH CH300830D patent/CH300830A/en unknown
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