CH268085A - Process for the preparation of an acylated aliphatic aminocarboxamide. - Google Patents

Process for the preparation of an acylated aliphatic aminocarboxamide.

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Publication number
CH268085A
CH268085A CH268085DA CH268085A CH 268085 A CH268085 A CH 268085A CH 268085D A CH268085D A CH 268085DA CH 268085 A CH268085 A CH 268085A
Authority
CH
Switzerland
Prior art keywords
preparation
aminocarboxamide
aliphatic
acylated aliphatic
acylated
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ag J R Geigy filed Critical Ag J R Geigy
Publication of CH268085A publication Critical patent/CH268085A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C237/00Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung eines     acylierten        aliphatischen        Aminocarbonsäureamides.       Aus der schweizerischen Patentschrift  Nr. 234453 ist bekannt, dass     acylierte        alipha-          t.ische        Aminoearbonsäureamide    wertvolle     thera-          peutisehe        Eigensehaften    besitzen und sieh  insbesondere zur Verwendung als     Analeptiea.     eignen.  



  Es wurde nun gefunden, dass     aeylierte        ali-          phatische        Aminocarbonsätireamide,    deren       Aminogruppe    gesättigte     Substituenten    trägt,  ausser     naeh    den im schweizerischen Patent  Nr. 234453 genannten Verfahren auch durch  Reduktion von     acylierten        aliphatisehen          Aminocarbonsäureamiden    mit ungesättigten       Substituenten    an der     Aminogruppe    hergestellt  werden können.

   Für die Reduktion kommen       versehiedene        -Methoden    in Betracht; sie kann  durch katalytische     Hydrierung,    auf     elektro-          chemisehem    oder auf biochemischem Wege,  erfolgen, aber auch durch chemische Reduk  tion z. B. mit Wasserstoff in statu nascendi.  Geeignete Katalysatoren für die     katalytische     Hydrierung sind z. B.     Raney-Niekel    oder       Edelmetallkatalysatoren.     



  Gegenstand vorliegenden Patentes ist ein  Verfahren zur Darstellung eines     aeylierten          aliphatisehen        Aminoearbonsäureamides.    Das  Verfahren ist dadurch gekennzeichnet, dass  man     N-Propionyl-a-allylamino-bitttersäure-di-          methylamid    reduziert.  



  Die entstandene neue Verbindung, das N  Propiony 1-a-     (n-propy    1-     amino)    -     buttersäure-di-          methvlamid    der     Farmel     
EMI0001.0042     
    bildet eine farblose Flüssigkeit vom Siedepunkt       11.9-120     unter 0,2 mm Druck. Sie soll thera  peutische Verwendung finden.  



       Beispiel:     22,8 Teile     N-Propionyl-a-allylamino-butter-          säure-dimethylamid    werden in 100 Teilen  Wasser gelöst, dazu 2,5 Teile     Raney-Nickel     gegeben     Lind    das Gemisch in Gegenwart von  Wasserstoff so lange bei Zimmertemperatur  geschüttelt, bis kein Wasserstoff mehr aufge  nommen wird. Dann wird vom Katalysator       abfiltriert,    das Filtrat mit     Kaliumhydroxyd     gesättigt und das abgeschiedene Öl in Benzol  aufgenommen.

   Nach dem Trocknen der     ben-          zolischen    Lösung über     Kaliumhydroxyd    wird  vom     Lösungsmittel    befreit und das     N-Pro-          pionyl-a-        (n-propylamino)        -buttersäure-dime-          thylamid    im Hochvakuum rektifiziert. Die  farblose, in Wasser leicht lösliche Flüssigkeit  siedet unter 0,2 mm Druck bei 119-120 .  



  Statt bei Zimmertemperatur, kann die     Hy-          clriernng        anch    bei 50 bis 60  ausgeführt  werden.



  Process for the preparation of an acylated aliphatic aminocarboxamide. It is known from Swiss patent specification No. 234453 that acylated aliphatic amino carboxamides have valuable therapeutic properties and are particularly useful as analysts. suitable.



  It has now been found that aeylated aliphatic aminocarboxamides, the amino group of which bears saturated substituents, can also be prepared by reducing acylated aliphatic aminocarboxamides with unsaturated substituents on the amino group, in addition to the processes mentioned in Swiss Patent No. 234453.

   Various methods can be used for the reduction; it can be done by catalytic hydrogenation, electrochemisehem or biochemically, but also by chemical reduction z. B. with hydrogen in statu nascendi. Suitable catalysts for the catalytic hydrogenation are, for. B. Raney-Niekel or noble metal catalysts.



  The subject of the present patent is a process for the preparation of an aylated aliphatic amino acid amide. The process is characterized in that N-propionyl-a-allylamino-bitter acid dimethylamide is reduced.



  The resulting new compound, the N propiony 1-a- (n-propy 1-amino) -butyric acid dimethvlamid from Farmel
EMI0001.0042
    forms a colorless liquid with a boiling point of 11.9-120 under 0.2 mm pressure. It should find therapeutic use.



       Example: 22.8 parts of N-propionyl-a-allylamino-butyric acid dimethylamide are dissolved in 100 parts of water, 2.5 parts of Raney nickel are added and the mixture is shaken in the presence of hydrogen at room temperature until none More hydrogen is absorbed. The catalyst is then filtered off, the filtrate is saturated with potassium hydroxide and the separated oil is taken up in benzene.

   After the benzene solution has been dried over potassium hydroxide, the solvent is removed and the N-propionyl-a- (n-propylamino) butyric acid dimethylamide is rectified in a high vacuum. The colorless liquid, easily soluble in water, boils at 119-120 under 0.2 mm pressure.



  Instead of being carried out at room temperature, the drying can also be carried out at 50 to 60.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines acylierten aliphatischen Aminocarbonsäureamides, da durch gekennzeichnet, dass man N-Propionyl- a-allylamino-buttersäure-dimethylamid redu ziert. Die entstandene neue Verbindung, das N- Propionyl-a- (n-propylamino)-buttersäure-di- methylamid cler Formel EMI0002.0007 bildet eine farblose Flüssigkeit vom Siede punkt 119-120 unter 0,2 mm Druelz#. PATENT CLAIM: Process for the preparation of an acylated aliphatic aminocarboxamide, characterized in that N-propionyl-a-allylamino-butyric acid-dimethylamide is reduced. The resulting new compound, the N-propionyl-a- (n-propylamino) butyric acid dimethylamide of the formula EMI0002.0007 forms a colorless liquid with a boiling point 119-120 below 0.2 mm pressure #.
CH268085D 1946-07-01 1946-07-01 Process for the preparation of an acylated aliphatic aminocarboxamide. CH268085A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH254949T 1946-07-01
CH268085T 1946-07-01

Publications (1)

Publication Number Publication Date
CH268085A true CH268085A (en) 1950-04-30

Family

ID=25729880

Family Applications (1)

Application Number Title Priority Date Filing Date
CH268085D CH268085A (en) 1946-07-01 1946-07-01 Process for the preparation of an acylated aliphatic aminocarboxamide.

Country Status (1)

Country Link
CH (1) CH268085A (en)

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