AT157240B - Process for the preparation of tertiary acetamides substituted by unsaturated alkyl radicals. - Google Patents

Process for the preparation of tertiary acetamides substituted by unsaturated alkyl radicals.

Info

Publication number
AT157240B
AT157240B AT157240DA AT157240B AT 157240 B AT157240 B AT 157240B AT 157240D A AT157240D A AT 157240DA AT 157240 B AT157240 B AT 157240B
Authority
AT
Austria
Prior art keywords
tertiary
unsaturated alkyl
alkyl radicals
preparation
acetamides
Prior art date
Application number
Other languages
German (de)
Inventor
Karl Dr Ziegler
Original Assignee
Karl Dr Ziegler
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 Karl Dr Ziegler filed Critical Karl Dr Ziegler
Application granted granted Critical
Publication of AT157240B publication Critical patent/AT157240B/en

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von durch ungesättigte   Alkylreste substituierten tertiären Acetamiden.   



   Unter den Schlafmitteln stellen die Amide bestimmter organischer Säuren eine sehr wichtige Gruppe dar. Es sind auch bereits tertiäre Acetamid mit starker hypnotischer Wirkung, die eine ungesättigte Alkylgruppe'am zur Carboxylgruppe   -ständigen   Kohlenstoffatom tragen, wie z.   B.   das   Diäthyl-     allylaeetamid   und die durch Verseifung der entsprechenden Acetonitrile hergestellt wurden, bekannt (deutsche Patentschriften Nr. 412820, Nr. 473329). In der letztgenannten Patentschrift sind auch tertiäre Acetonitrile mit mehreren ungesättigten Alkylresten beschrieben. 



   Wie nun gefunden wurde, zeigen tertiäre Acetamide mit zwei oder drei ungesättigten Alkylresten gegenüber den bisher bekannten Schlafmitteln aber auch gegenüber den bekannten tertiären Acetamiden bei Vergleichsversuchen an Kaninchen eine erheblich stärkere Wirksamkeit. Die schlafmachende Dosis liegt bei den mehrfach ungesättigt substituierten tertiären Acetamiden bereits bei 
 EMI1.1 
 allylacetamid tritt die einschläfernde Wirkung erst bei 60   M : y   je Kilogramm Kaninchen auf. Es zeigt sich ferner, dass bei den Barbitursäuren die kleinste schlafmachende Gabe von der vollnarkotisehen 
 EMI1.2 
 therapeutische Breite besteht. 



   Ein derartig günstiges Ergebnis war keineswegs zu erwarten, denn die Zusammenhänge zwischen Konstitution und hypnotischer Wirkung sind durchaus nicht immer so, dass eine Vervielfachung gewisser als wirksam erkannter Gruppen auch eine Verstärkung und Verbesserung der Wirkung nach sich ziehen müsste. 



   Die Verseifung der tertiären Acetonitrile erfolgt in an sich bekannter Weise. 



   Die nach vorliegendem Verfahren   erhältlichen   Acetamide sind in Wasser schwer löslich, lassen sich aber aus Petroläther gut umkristallisieren. 



   Beispiel 1 : 200 Gew.-Teile Triallylacetonitril werden in einer Lösung von 140 Gew.-Teilen Ätzkali in 1200   Raumteilen Batylalkobol 5   Stunden am Rückflusskühler gekocht. Nach Beendigung der Reaktion wird der Butylalkohol mit Wasserdampf abdestilliert ; beim Abkühlen kristallisiert der Rückstand. Nach dem Absaugen wird mit Wasser alkalifrei gewaschen, getrocknet und mehrfach   aus Benzin umkristallisiert. Das erhaltene Triallylacetamid (F=63-65 ) ist leicht löslich in organischen   
 EMI1.3 
 



   Beispiel 3 : 300 Gew.-Teile Propyldiallylacetonitril werden in einer Lösung von 208 Gew.-Teilen Ätzkali in 1800 Raumteilen Butylalkohol 5 Stunden am Rüekflusskühler gekocht. Nach Beendigung der Reaktion wird wie im Beispiel 1 aufgearbeitet. Das erhaltene   Propyldiallylaeetamid     (F=53C)   zeigt dasselbe chemische Verhalten wie die Amide der vorhergehenden Beispiele. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the preparation of tertiary acetamides substituted by unsaturated alkyl radicals.



   Among the sleeping pills, the amides of certain organic acids represent a very important group. There are also tertiary acetamides with a strong hypnotic effect that carry an unsaturated alkyl group on the carbon atom on the carboxyl group, such as. B. the diethyl allylaeetamid and which were prepared by saponification of the corresponding acetonitrile, known (German patents No. 412820, No. 473329). The last-mentioned patent also describes tertiary acetonitriles with several unsaturated alkyl radicals.



   As has now been found, tertiary acetamides with two or three unsaturated alkyl radicals are considerably more effective than the previously known sleeping pills but also compared with the known tertiary acetamides in comparative tests on rabbits. The sleep-inducing dose is already included with the polyunsaturated substituted tertiary acetamides
 EMI1.1
 allylacetamide does not have a drowsy effect until 60 M: y per kilogram of rabbit. It also shows that the smallest sleep-inducing dose of barbituric acids comes from full anesthesia
 EMI1.2
 therapeutic breadth.



   Such a favorable result was by no means to be expected, because the connections between constitution and hypnotic effect are by no means always such that a multiplication of certain groups recognized as effective would also lead to a strengthening and improvement of the effect.



   The tertiary acetonitriles are saponified in a manner known per se.



   The acetamides obtainable by the present process are sparingly soluble in water, but can easily be recrystallized from petroleum ether.



   Example 1: 200 parts by weight of triallylacetonitrile are refluxed for 5 hours in a solution of 140 parts by weight of caustic potash in 1200 parts by volume of batyl alcohol. After the reaction has ended, the butyl alcohol is distilled off with steam; the residue crystallizes on cooling. After suctioning off, it is washed alkali-free with water, dried and recrystallized several times from gasoline. The triallylacetamide obtained (F = 63-65) is easily soluble in organic
 EMI1.3
 



   Example 3: 300 parts by weight of propyldiallylacetonitrile are boiled for 5 hours on a reflux condenser in a solution of 208 parts by weight of caustic potash in 1800 parts by volume of butyl alcohol. After the reaction has ended, it is worked up as in Example 1. The propyldiallylaeetamide obtained (F = 53C) shows the same chemical behavior as the amides of the previous examples.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Darstellung von durch ungesättigte Alkylreste substituierten tertiären Acetamiden EMI1.4 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the preparation of tertiary acetamides substituted by unsaturated alkyl radicals EMI1.4 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT157240D 1931-05-13 1932-02-09 Process for the preparation of tertiary acetamides substituted by unsaturated alkyl radicals. AT157240B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE157240T 1931-05-13

Publications (1)

Publication Number Publication Date
AT157240B true AT157240B (en) 1939-10-10

Family

ID=29412824

Family Applications (1)

Application Number Title Priority Date Filing Date
AT157240D AT157240B (en) 1931-05-13 1932-02-09 Process for the preparation of tertiary acetamides substituted by unsaturated alkyl radicals.

Country Status (1)

Country Link
AT (1) AT157240B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122939B (en) * 1958-08-08 1962-02-01 Hoechst Ag Process for the preparation of ª,ª-alkenoic acid amides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122939B (en) * 1958-08-08 1962-02-01 Hoechst Ag Process for the preparation of ª,ª-alkenoic acid amides

Similar Documents

Publication Publication Date Title
AT142251B (en) Process for the preparation of alkamine esters.
AT157240B (en) Process for the preparation of tertiary acetamides substituted by unsaturated alkyl radicals.
AT268233B (en) Process for the preparation of new cyclopropanecarboxylic acid esters
CH369759A (en) Process for the preparation of N-alkylpiperidine-α-carboxylic acid anilides
DE763489C (en) Process for the preparation of ª-aminoethyl esters of substituted phenylacetic acids
DE934103C (en) Process for the production of cyclooctylated alkyl acetic acids with a strong cholagogue effect
DE752871C (en) Process for the production of basic ethers of fatty aromatic oxyates
DE1259635B (en) Agility improver for diesel fuels
AT225359B (en) Process for the preparation of the new 17-β-oxy-17-α-methylandrostan- (3, 2, -c) -iso-oxazole
AT250352B (en) Process for the preparation of new quaternary 4-pyridylthioethers
AT254855B (en) Process for the preparation of new 3-amino-2,4,6-triiodobenzoic acid derivatives
DE897559C (en) Process for the preparation of diaryldialkylaethylenes
AT258886B (en) Process for the preparation of new optically active or racemic 1-aryloxy-2-hydroxy-3-isopropylaminopropanes and their salts
AT235280B (en) Process for the production of new indole derivatives
CH158981A (en) Method for the preparation of a strongly hypnotic, unsaturated substituted tertiary acetamide.
AT233548B (en) Process for the production of new asparagine derivatives
AT216156B (en) Process for the preparation of polyhydrophenanthrene compounds
AT216497B (en) Process for the preparation of new β-hydroxybutyric acid amide derivatives
AT221504B (en) Process for the production of new basic phenol ethers and their salts
AT224126B (en) Process for the preparation of the new optical isomers of 5- (3&#39;-dimethylamino-2&#39;-methylpropyl) -iminodibenzyl
AT283555B (en) DETERGENT MIXTURES
DE1950329A1 (en) Anti-trichomonas pharmaceuticals
CH173413A (en) Process for the preparation of N-oxyethyl-N-B, y-dioxypropyl-aminobenzene.
DE1470221A1 (en) Piperidinomethyl compounds and processes for their preparation
CH176155A (en) Process for the preparation of 2-ethoxy-5-propionyl-aminopyridine.