AT98713B - Process for the preparation of synthetic l-cocaine. - Google Patents

Process for the preparation of synthetic l-cocaine.

Info

Publication number
AT98713B
AT98713B AT98713DA AT98713B AT 98713 B AT98713 B AT 98713B AT 98713D A AT98713D A AT 98713DA AT 98713 B AT98713 B AT 98713B
Authority
AT
Austria
Prior art keywords
cocaine
synthetic
preparation
labile
natural
Prior art date
Application number
Other languages
German (de)
Original Assignee
Merck Ag E
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 Merck Ag E filed Critical Merck Ag E
Application granted granted Critical
Publication of AT98713B publication Critical patent/AT98713B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von synthetischem 1-Kokain. 
 EMI1.1 
 vom Schmelzpunkt 79-80 , Schmelzpunkt des Chlorides 187' (korr.), gibt, das in seinen Eigenschaften grosse   Ähnlichkeit   mit dem natürlichen l-Kokain aufweist. Während es nun bisher   nicht gelungen   ist, das stabile   #-Racemat     (d-l-#-Kokain) mit Hilfe von Weinsäure   in seine optischen Antipoden zu trennen (vgl.   Willstiltter   und Bode. Ann. 326, S. 74), wurde die wichtige Beobachtung gemacht, dass diese beim alkalilabilen d-l-Kokain mit Leichtigkeit gelingt. wobei die aus dem erhaltenen Ditartrat abgeschiedene Base sich als identisch mit dem natürlichen l-Kokain erweist. 



   Beispiel : 3 g   all     lkalilabiles d-l-Kokain und 1#5 g Weinsäure werden unter gelindem Erwärmen   
 EMI1.2 
 Kokain. 

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



   <Desc / Clms Page number 1>
 



  Process for the preparation of synthetic 1-cocaine.
 EMI1.1
 of melting point 79-80, melting point of chloride 187 '(corr.), whose properties are very similar to natural l-cocaine. While it has so far not been possible to separate the stable # racemate (dl - # - cocaine) into its optical antipodes with the help of tartaric acid (cf. Willstiltter and Bode. Ann. 326, p. 74), the important observation became made that this succeeds with ease with alkali-labile dl-cocaine. the base deposited from the ditartrate obtained proving to be identical to the natural l-cocaine.



   Example: 3 g of all alkali-labile d-l-cocaine and 1 # 5 g of tartaric acid are heated gently
 EMI1.2
 Cocaine.

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

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Darstellung von synthetischem l-Kokain, darin bestehend, dass man alkaliabiles Kokainracemat (d-l-Kokain) nach an sich bekannter Methode mit Hilfe von Weinsäure in seine optischen Antipoden zerlegt, wobei die ans dem erhaltenen Ditartrat abgeschiedene Base sich als identisch mit dem natürlichen l-Kokain erweist. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the preparation of synthetic l-cocaine, consisting in breaking down alkali-labile cocaine racemate (dl-cocaine) into its optical antipodes using tartaric acid according to a method known per se, the base deposited on the ditartrate obtained being identical to the natural one l-cocaine turns out. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT98713D 1923-09-24 1923-09-24 Process for the preparation of synthetic l-cocaine. AT98713B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT98713T 1923-09-24

Publications (1)

Publication Number Publication Date
AT98713B true AT98713B (en) 1924-12-10

Family

ID=3618057

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98713D AT98713B (en) 1923-09-24 1923-09-24 Process for the preparation of synthetic l-cocaine.

Country Status (1)

Country Link
AT (1) AT98713B (en)

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