AT98715B - Method for the preparation of d-φ- and l-φ-cocaine. - Google Patents

Method for the preparation of d-φ- and l-φ-cocaine.

Info

Publication number
AT98715B
AT98715B AT98715DA AT98715B AT 98715 B AT98715 B AT 98715B AT 98715D A AT98715D A AT 98715DA AT 98715 B AT98715 B AT 98715B
Authority
AT
Austria
Prior art keywords
cocaine
preparation
ecgonine
optically active
ester
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 AT98715B publication Critical patent/AT98715B/en

Links

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von   d-#- und 1-#-Kokain.   
 EMI1.1 
 pilze, das erhaltene Kokainracemat in seine optisch aktiven Komponenten zu zerlegen. 



   Es wurde nun die wichtige Beobachtung gemacht, dass man zu den optisch aktiven   #-Kokainen   gelangen kann, wenn man die Spaltung nach den   üblichen   Methoden statt beim Kokain bereits beim zugehörigen racemischen   Ecgoninester   bewirkt und die so erhaltenen, optisch aktiven Ecgoninester in an sich bekannter Weise benzoyliert. 
 EMI1.2 
 aus denen sieh in   üblicher   Weise   d-#-Eegoninmethylester abseheiden lässt. Dieser ist identisch   mit den natürlichen   -Ecgoninmethylester   vom   Schmelzpunkt 115-.   



   Das synthetische Produkt liefert ebenso wie das aus Pflanzen gewonnene Präparat durch Benzollieren in an dich bekannter   Weise d-#-Kokain.   
 EMI1.3 
 

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



   <Desc / Clms Page number 1>
 



  Process for the preparation of d - # and 1 - # cocaine.
 EMI1.1
 mushrooms to break down the cocaine racemate obtained into its optically active components.



   The important observation has now been made that the optically active # -cocaine can be obtained if the cleavage is effected by the customary methods instead of with cocaine with the associated racemic ecgonine ester and the optically active ecgonine ester obtained in this way in a manner known per se benzoylated.
 EMI1.2
 from which d - # - eegonin methyl ester can be separated out in the usual way. This is identical to the natural ecgonine methyl ester with a melting point of 115.



   The synthetic product, like the preparation obtained from plants, delivers d - # cocaine by benzene in a manner known to you.
 EMI1.3
 

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

Claims (1)

**WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT98715D 1923-01-17 1923-11-07 Method for the preparation of d-φ- and l-φ-cocaine. AT98715B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE98715X 1923-01-17

Publications (1)

Publication Number Publication Date
AT98715B true AT98715B (en) 1924-12-10

Family

ID=5646873

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98715D AT98715B (en) 1923-01-17 1923-11-07 Method for the preparation of d-φ- and l-φ-cocaine.

Country Status (1)

Country Link
AT (1) AT98715B (en)

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