CH246199A - Process for the preparation of a basic ester of a 1-aryl-cycloalkyl-1-carboxylic acid. - Google Patents

Process for the preparation of a basic ester of a 1-aryl-cycloalkyl-1-carboxylic acid.

Info

Publication number
CH246199A
CH246199A CH246199DA CH246199A CH 246199 A CH246199 A CH 246199A CH 246199D A CH246199D A CH 246199DA CH 246199 A CH246199 A CH 246199A
Authority
CH
Switzerland
Prior art keywords
carboxylic acid
cycloalkyl
aryl
preparation
basic ester
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 CH246199A publication Critical patent/CH246199A/en

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

Description

  

      Verfahren        zur        Darstellung        eines        basischen    Esters     einer.'l-Aryl-cycloalkyl    l     carbonsäur'e.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Darstellung eines basi  schen     Esters    einer     1-Aryl-cycloalkyl-l-car-          bonsäure.    Das     Verfahren    ist dadurch gekenn  zeichnet, dass man     ss-(Methyl-isopropyl-          amino)

  -äthanol    auf eine Verbindung der  Formel  
EMI0001.0014     
         worin    X     einen    bei der Reaktion sich abspal  tenden Rest bedeutet,     einwirken    lässt. Als       Verbindungen    der obigen Formel können bei  spielsweise verwendet werden:

   die freie  Säure, dann vor allem ihre     Halogenide,    aber  auch des     Anhydrid    oder ihre Ester mit  niederen     Alkoholen    oder     Phenolen.    Die er  haltene neue     Verbindung,    der     1-Phenyl-cyclo-          pentan-1-        carbonsäure.-    A-     (methyl-isopropyl-          amino)-äthylester,    bildet ein     i01    vom Siede  punkt 110-115  unter 0,05 mm     Druck;

      ,das       Hydrochlorid    schmilzt bei     137-139 .    Die       Verbindung    soll therapeutische Verwendung  finden.  



       Beispiel:     30 Teile     1-Phenyl-cyclopentan-l-carbon-          säure-chlorid        (Kp.imm    105-107 ) werden mit  46 Teilen     ss-(Methyl-isopropyl-amino)-äthanol     (aus     Methyl-isopropyl-amin    und     Äthylen-          ogyd;        gp."        .n,    56-60 ) in 50     Volumteilen       absolutem Benzol 4 Stunden lang unter       Rückfluss    gekocht.

   Nach dem Erkalten     wird     mit     2n-Natronlauge    und     Wasser    gewaschen  und das     Lösungsmittel    auf dem     Wasserbad          abdestilliert.    Die Destillation des Rückstan  des im Hochvakuum ergibt 34 Teile eines       als    vom Siedepunkt 110-115  unter 0;05 mm  Druck. Das     Hydrochlorid    dieser Base schmilzt  bei 137-139  und bildet, aus     Essigester-          Methanol    oder Aceton     umkristallisiert,    farb  lose     griställehen.    -



      Process for the preparation of a basic ester of a'l-aryl-cycloalkyl-carboxylic acid. The present patent is a process for the preparation of a basic ester of a 1-aryl-cycloalkyl-1-carboxylic acid. The process is characterized in that one ss- (methyl-isopropyl-amino)

  -ethanol to a compound of the formula
EMI0001.0014
         where X is a residue that splits off during the reaction, can act. As compounds of the above formula can be used for example:

   the free acid, then especially its halides, but also the anhydride or its esters with lower alcohols or phenols. The new compound obtained, the 1-phenyl-cyclopentane-1-carboxylic acid.- A- (methyl-isopropyl-amino) -ethyl ester, forms an i01 boiling point 110-115 under 0.05 mm pressure;

      , the hydrochloride melts at 137-139. The compound is intended to find therapeutic use.



       Example: 30 parts of 1-phenyl-cyclopentane-l-carboxylic acid chloride (b.p.imm 105-107) are mixed with 46 parts of ss- (methyl-isopropyl-amino) -ethanol (from methyl isopropyl-amine and ethylene ogyd; gp. ".n, 56-60) refluxed in 50 parts by volume of absolute benzene for 4 hours.

   After cooling, it is washed with 2N sodium hydroxide solution and water and the solvent is distilled off on the water bath. The distillation of the residue in a high vacuum gives 34 parts of a boiling point 110-115 under 0.05 mm pressure. The hydrochloride of this base melts at 137-139 and, when recrystallized from ethyl acetate-methanol or acetone, forms colorless granules. -

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines basi schen Esters einer 1-Aryl-cycloalkyl-l-car- bonsäure, dadurch gekennzeichnet, dass man ss,-(Methyl-isopropyl-amino)-äthanol auf eine Verbindung der Formel EMI0001.0063 worin X einen bei der Reaktion sich abspal tenden Rest bedeutet, einwirken lässt. PATENT CLAIM: Process for the preparation of a basic ester of a 1-aryl-cycloalkyl-1-carboxylic acid, characterized in that ss, - (methyl-isopropyl-amino) ethanol is applied to a compound of the formula EMI0001.0063 where X is a residue that splits off during the reaction, can act. Die er haltene neue Verbindung, der 1-Phenyl-cyclo- pentan- h-:carbonsäure-ssh (methyl-isopropyl- amino)-äthylester, bildet ein 01 vom Siede punkt 110-115 unter 0,05 mm Druck; das Hydrochlorid schmilzt bei 137-139 . The new compound obtained, the 1-phenyl-cyclopentane-h-: carboxylic acid-ssh (methyl-isopropyl-amino) -ethyl ester, forms an oil with a boiling point of 110-115 under 0.05 mm pressure; the hydrochloride melts at 137-139.
CH246199D 1944-03-20 1944-03-20 Process for the preparation of a basic ester of a 1-aryl-cycloalkyl-1-carboxylic acid. CH246199A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH246199T 1944-03-20
CH234452T 1944-03-20

Publications (1)

Publication Number Publication Date
CH246199A true CH246199A (en) 1946-12-15

Family

ID=25727876

Family Applications (1)

Application Number Title Priority Date Filing Date
CH246199D CH246199A (en) 1944-03-20 1944-03-20 Process for the preparation of a basic ester of a 1-aryl-cycloalkyl-1-carboxylic acid.

Country Status (1)

Country Link
CH (1) CH246199A (en)

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