AT212976B - Process for the production of 1,4-dicaffoyl-quinic acid - Google Patents

Process for the production of 1,4-dicaffoyl-quinic acid

Info

Publication number
AT212976B
AT212976B AT278155A AT278155A AT212976B AT 212976 B AT212976 B AT 212976B AT 278155 A AT278155 A AT 278155A AT 278155 A AT278155 A AT 278155A AT 212976 B AT212976 B AT 212976B
Authority
AT
Austria
Prior art keywords
dicaffoyl
quinic acid
lead
acid
crystallization
Prior art date
Application number
AT278155A
Other languages
German (de)
Inventor
Luigi Panizzi
Original Assignee
Farmaceutici Italia
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 Farmaceutici Italia filed Critical Farmaceutici Italia
Application granted granted Critical
Publication of AT212976B publication Critical patent/AT212976B/en

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Landscapes

  • Nitrogen Condensed Heterocyclic Rings (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Gewinnung von   1 4-Dicaffoyl-chinasäure   
 EMI1.1 
 

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   4-Dicaffoyl-chinasäureDie 1, 4-Dicaffoyl-chinasäure besitzt folgende Bruttoformel : C25H24O32.H2O und die nachstehende Struktur : 
 EMI2.1 
 
 EMI2.2 




   <Desc / Clms Page number 1>
 



  Process for the preparation of 14-dicaffoyl-quinic acid
 EMI1.1
 

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   4-Dicaffoyl-quinic acid The 1,4-dicaffoyl-quinic acid has the following gross formula: C25H24O32.H2O and the following structure:
 EMI2.1
 
 EMI2.2

Claims (1)

- 1720PATENTANSPRÜCHE : 1. Verfahren zur Gewinnung von 1, 4-Dicaffoyl-chinasäure, dadurch gekennzeichnet, dass man eine Abkochung frischer Pflanzen der Familie Compositiae, Gattung Cynara, insbesondere Disteln (Cynara eardunculus) oder Artischoken (Cynara scolymus) unmittelbar oder nach dem Abkühlen auf Raumtemperatur mit einem Überschuss an löslichen Blei- oder Bariumsalzen versetzt, den das Blei- bzw. Bariumsalz der 1, 4-Dicaffoyl-chinasäure enthaltenden Niederschlag mit Säuren behandelt und die so EMI3.1 Schwefelsäure und Schwefelwasserstoff bis zur Kristallisation eingeengt wird. - 1720 PATENT CLAIMS: 1. A process for the production of 1, 4-dicaffoyl-quinic acid, characterized in that a decoction of fresh plants of the Compositiae family, genus Cynara, in particular thistles (Cynara eardunculus) or artichokes (Cynara scolymus) immediately or after cooling to room temperature with an excess of soluble lead or barium salts are added, the lead or barium salt of the 1,4-dicaffoyl-quinic acid-containing precipitate is treated with acids and the so EMI3.1 Sulfuric acid and hydrogen sulfide is concentrated until crystallization. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der durch Fällung mit Blei- oder Bariumsalzen erhaltene Niederschlag in lomiger Salpetersäure gelöst und die 1, 4-Dicaffoyl-chinasäure durch Kristallisation abgeschieden wird. 3. The method according to claim 1, characterized in that the precipitate obtained by precipitation with lead or barium salts is dissolved in lomiger nitric acid and the 1,4-dicaffoyl-quinic acid is deposited by crystallization. 4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der durch Fällung mit Blei- oder Bariumsalzen erhaltene Niederschlag zur Entfernung der Begleitstoffe mit verdünnter Schwefelsäure behandelt und der Rückstand mit einem organischen Lösungsmittel, wie Methanol, Äthanol oder Dioxan, extrahiert und aus dem Extrakt 1, 4-Dicaffoyl-chinasäure durch Kristallisation gewonnen wird. 4. The method according to claim 1, characterized in that the precipitate obtained by precipitation with lead or barium salts is treated with dilute sulfuric acid to remove the accompanying substances and the residue is extracted with an organic solvent such as methanol, ethanol or dioxane and extracted from the extract 1 , 4-Dicaffoyl-quinic acid is obtained by crystallization.
AT278155A 1954-05-28 1955-05-13 Process for the production of 1,4-dicaffoyl-quinic acid AT212976B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT212976X 1954-05-28

Publications (1)

Publication Number Publication Date
AT212976B true AT212976B (en) 1961-01-10

Family

ID=11179696

Family Applications (1)

Application Number Title Priority Date Filing Date
AT278155A AT212976B (en) 1954-05-28 1955-05-13 Process for the production of 1,4-dicaffoyl-quinic acid

Country Status (1)

Country Link
AT (1) AT212976B (en)

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