AT16247B - Process for the preparation of thioxanthine from 4,5-diamino-2,6-dioxypyrimidine. - Google Patents

Process for the preparation of thioxanthine from 4,5-diamino-2,6-dioxypyrimidine.

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Publication number
AT16247B
AT16247B AT16247DA AT16247B AT 16247 B AT16247 B AT 16247B AT 16247D A AT16247D A AT 16247DA AT 16247 B AT16247 B AT 16247B
Authority
AT
Austria
Prior art keywords
dioxypyrimidine
thioxanthine
diamino
preparation
desc
Prior art date
Application number
Other languages
German (de)
Original Assignee
Boehringer & Soehne
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
Priority claimed from DE1902142468D external-priority patent/DE142468C/de
Application filed by Boehringer & Soehne filed Critical Boehringer & Soehne
Application granted granted Critical
Publication of AT16247B publication Critical patent/AT16247B/en

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  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



   Österreichische PATENTSCHRIFT   Nu, 16247.   C. F. BOEHRINGER & SÖHNE iN WALDHOF BEI MANNHEIM. 



   Verfahren zur Darstellung von Thioxanthin aus 4, 5-Diamino-2, 6-dioxypyrimidin. 



    Es wurde gefunden, dass sich das 4, 5-Dìamino-2, 6-dioxypyrimidin (4,5-Diaminouracil)   durch Behandlung mit Schwefelkohlenstoff unter Schwefelwasserstoffallspaltung in das 
 EMI1.1 
 
 EMI1.2 
 
 EMI1.3 
 bestehend. 



   Aus dem durch Filtration gewonnenen Salze wird das Thioxanthin in bekannter Weise   durch Mineralsauren   in Freiheit gesetzt. 

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



   <Desc / Clms Page number 1>
 



   Austrian PATENT LETTER Nu, 16247. C. F. BOEHRINGER & SÖHNE IN WALDHOF NEAR MANNHEIM.



   Process for the preparation of thioxanthine from 4,5-diamino-2,6-dioxypyrimidine.



    It was found that the 4, 5-Dìamino-2,6-dioxypyrimidine (4,5-diaminouracil) by treatment with carbon disulfide with hydrogen sulfide cleavage in the
 EMI1.1
 
 EMI1.2
 
 EMI1.3
 existing.



   From the salts obtained by filtration, the thioxanthine is released in a known manner by mineral acids.

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

Claims (1)

PATENT-ANSPRUCH : EMI1.4 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: EMI1.4 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT16247D 1902-07-09 1903-06-08 Process for the preparation of thioxanthine from 4,5-diamino-2,6-dioxypyrimidine. AT16247B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1902142468D DE142468C (en) 1902-07-09

Publications (1)

Publication Number Publication Date
AT16247B true AT16247B (en) 1904-05-10

Family

ID=5669223

Family Applications (1)

Application Number Title Priority Date Filing Date
AT16247D AT16247B (en) 1902-07-09 1903-06-08 Process for the preparation of thioxanthine from 4,5-diamino-2,6-dioxypyrimidine.

Country Status (1)

Country Link
AT (1) AT16247B (en)

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