CH287864A - Process for the preparation of a new amino-aryl-pyridyl-alkanol. - Google Patents

Process for the preparation of a new amino-aryl-pyridyl-alkanol.

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Publication number
CH287864A
CH287864A CH287864DA CH287864A CH 287864 A CH287864 A CH 287864A CH 287864D A CH287864D A CH 287864DA CH 287864 A CH287864 A CH 287864A
Authority
CH
Switzerland
Prior art keywords
pyridyl
alkanol
aryl
phenyl
preparation
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba 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 Ciba Geigy filed Critical Ciba Geigy
Publication of CH287864A publication Critical patent/CH287864A/en

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  • Pyridine Compounds (AREA)

Description

  

  <B>Verfahren zur Herstellung eines neuen</B>     Amino-aryl-pyridyl-alkanole.       Das vorliegende Patent betrifft ein Ver  fahren zur Herstellung eines neuen     Amino-          aryl-pyridyl-alkanols,    welches dadurch ge  kennzeichnet, dass man     1-Dimethylamino-3-          phenyl-3-pyridyl-(2')-hexanon-(4)    mit einem  reduzierenden Mittel behandelt.  



  Das so erhaltene     1-Dimethylamino-3-phenyl-          3-pyridyl-(2')-he-xanol-(4)    ist ein     viskoses    Öl  vom Kp. 106 bis     114     (0,1 mm) und bildet  .ein leicht wasserlösliches Hydrochlorid. Es ist  neu und soll als Heilmittel oder als Zwischen  produkt Verwendung finden.  



  Als reduzierende     Drittel    werden insbeson  dere     Dimetallhydride,    wie ein     AlkaIimetall-          Aluminiumhydrid,    in erster Linie     Lithium-          Aluminiumhydrid,    ferner auch Natrium- oder       Lithiuni-Borhydrid    verwendet.  



  Das verfahrensgemäss erhaltene     Alkanol     kann in üblicher Weise in seine Salze über  geführt werden, wie zum Beispiel durch Um  setzen der freien Base mit den entsprechenden  Säuren in Abwesenheit von Wasser.  



       Beispiel:     15,4 Gewichtsteile     1-Dimethylamino-3-phe-          nyl-3-pyridyl-(2')-hexanon-(4),    gelöst in 100       Volumteilen    absolutem Äther, werden in klei  nen Portionen zu 2,1 Gewichtsteilen     Lithium-          Aluminium-Hydrid,    suspendiert in 300     Vo-          lumteilen    absolutem Äther, unter Rühren zu  gegeben.

   Das Reaktionsgemisch wird nach Ab  klingen der Reaktion zum Schluss 1 Stunde    auf dem     MTa.sserbad    am     R.ückfliiss    erhitzt,  dann mit Wasser zersetzt, die ätherische Lö  sung abgetrennt und die wässerige Lösung  erschöpfend mit Äther extrahiert. Die verei  nigten ätherischen Auszüge trocknet man  über Pottasche, dampft das Lösungsmittel ab       Lind    destilliert den Rückstand     -unter    vermin  dertem Druck. Das     1-Dimethylamino-3-phenyl-          3-pyridyl-(2')-hexanol-(4)    der Formel  
EMI0001.0032     
    geht als gelbes, viskoses Öl zwischen 106 bis  114  bei einem     Druck    von 0,1 mm über.  



  Das als Ausgangsmaterial verwendete     1-          Dimet        hylamino    -3-     phenyl-3-pyridyl-    (2')     -hexa-          non-(4)    kann durch Umsetzung von     a-Phenyl-          a-pyridyl-    (2)     -y-dimethylamino-buttersäure-ni-          tril    mit     Äthyl-magnesium-bromid    hergestellt  werden.



  <B> Process for the production of a new </B> amino-aryl-pyridyl-alkanols. The present patent relates to a process for the production of a new amino aryl-pyridyl-alkanol, which is characterized in that 1-dimethylamino-3-phenyl-3-pyridyl- (2 ') - hexanone- (4) with a reducing agents treated.



  The 1-dimethylamino-3-phenyl-3-pyridyl- (2 ') -hexanol- (4) obtained in this way is a viscous oil with a boiling point of 106 to 114 (0.1 mm) and forms a readily water-soluble hydrochloride . It is new and should be used as a remedy or as an intermediate product.



  The reducing thirds are in particular dimetal hydrides, such as an alkali metal aluminum hydride, primarily lithium aluminum hydride, and also sodium or lithium borohydride.



  The alkanol obtained according to the process can be converted into its salts in a customary manner, for example by reacting the free base with the corresponding acids in the absence of water.



       Example: 15.4 parts by weight of 1-dimethylamino-3-phenyl-3-pyridyl- (2 ') -hexanone- (4), dissolved in 100 parts by volume of absolute ether, are added in small portions of 2.1 parts by weight of lithium Aluminum hydride, suspended in 300 parts by volume of absolute ether, was added with stirring.

   After the reaction has subsided, the reaction mixture is finally refluxed for 1 hour in the MTa.sserbad, then decomposed with water, the ethereal solution separated off and the aqueous solution extracted exhaustively with ether. The combined ethereal extracts are dried over potash, the solvent is evaporated and the residue is distilled under reduced pressure. The 1-dimethylamino-3-phenyl-3-pyridyl- (2 ') -hexanol- (4) of the formula
EMI0001.0032
    passes over as a yellow, viscous oil between 106 to 114 at a pressure of 0.1 mm.



  The 1- Dimet hylamino -3-phenyl-3-pyridyl- (2 ') -hexanon- (4) used as starting material can be obtained by reacting a-phenyl- a-pyridyl- (2) -y-dimethylamino-butyric acid -nitrile can be produced with ethyl magnesium bromide.

 

Claims (1)

P ATENTANSPRUCH: Verfahren zur Herstellung eines neuen Amino-aryl-pyridyl-alkanols, dadurch gekenn zeichnet, dass man 1-Dimethylamino-3-phenyl- 3-pyridyl-(2')-hexanon-(4) mit einem redu zierenden Mittel behandelt. Das so erhaltene 1-Dimethylamino-3-phenyl- 3-pyridyl-(2)-hexanol-(4) ist ein viskoses Öl vom gp. 106 bis 114 (0,1 mm) und bildet ein leicht wasserlösliches Hydrochlorid. Es ist neu und soll als Heilmittel oder als Zwischen produkt Verwendung finden. Claim to the patent: Process for the production of a new amino-aryl-pyridyl-alkanol, characterized in that 1-dimethylamino-3-phenyl-3-pyridyl- (2 ') -hexanone- (4) is treated with a reducing agent . The 1-dimethylamino-3-phenyl-3-pyridyl- (2) -hexanol- (4) obtained in this way is a viscous oil of gp. 106 to 114 (0.1 mm) and forms an easily water-soluble hydrochloride. It is new and should be used as a remedy or as an intermediate product. UNTEss; ANSPRUCH Verfahren nach Patentanspruch, dadurch gekennzeichnet, da.ss man als reduzierendes Mittel Lithium-Aluminiumhydrid verwendet. UNTEss; CLAIM Process according to patent claim, characterized in that lithium aluminum hydride is used as the reducing agent.
CH287864D 1949-09-09 1949-09-09 Process for the preparation of a new amino-aryl-pyridyl-alkanol. CH287864A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH287864T 1949-09-09

Publications (1)

Publication Number Publication Date
CH287864A true CH287864A (en) 1952-12-31

Family

ID=4485977

Family Applications (1)

Application Number Title Priority Date Filing Date
CH287864D CH287864A (en) 1949-09-09 1949-09-09 Process for the preparation of a new amino-aryl-pyridyl-alkanol.

Country Status (1)

Country Link
CH (1) CH287864A (en)

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