AT38328B - Process for the preparation of amino-, alkylamino- or arylaminoanthrapyridones. - Google Patents

Process for the preparation of amino-, alkylamino- or arylaminoanthrapyridones.

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Publication number
AT38328B
AT38328B AT38328DA AT38328B AT 38328 B AT38328 B AT 38328B AT 38328D A AT38328D A AT 38328DA AT 38328 B AT38328 B AT 38328B
Authority
AT
Austria
Prior art keywords
arylaminoanthrapyridones
alkylamino
amino
preparation
dyestuff
Prior art date
Application number
Other languages
German (de)
Original Assignee
Farbenfab Vorm Bayer F & Co
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 Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT38328B publication Critical patent/AT38328B/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
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   Beispiel 5 : 10 kg fein verteiltes Bromanthrapyridon (s. Patent Nr. 33991, Beispiel 1) werden mit 200 kg 20prozentigem Ammoniak in einem mit Rührwerk versehenen Autoklaven auf 1500 erhitzt, bis in einer abfiltrierten und ausgewaschenen Probe kein Brom mehr nachzuweisen ist. Man saugt ab, wäscht aus und krystallisiert nach dem Trocknen aus Nitrobenzol um. Man er- 
 EMI2.1 
 in konzentrierter Schwefelsäure unter Zusatz von Borsäure gelb mit intensiv grüner Fluoreszenz ist.   Der Körper   ist identisch mit dem auch aus 1-Azetylmethylamino-4-aminoanthrachion nach dem Verfahren des Patentes Nr. 33991 erhältlichen Aminoanthrapyridon. 



   Beispiel 6 : 10 kg p-Bromauthrapyridon (s. Patent Nr. 33991, Beispiel 1) werden in 500 kg 
 EMI2.2 




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   Example 5: 10 kg of finely divided bromanthrapyridone (see Patent No. 33991, Example 1) are heated to 1500 with 200 kg of 20 percent ammonia in an autoclave equipped with a stirrer until no more bromine can be detected in a filtered and washed sample. It is filtered off with suction, washed out and, after drying, crystallized from nitrobenzene. Man
 EMI2.1
 in concentrated sulfuric acid with the addition of boric acid is yellow with intensely green fluorescence. The body is identical to the aminoanthrapyridone also obtainable from 1-acetylmethylamino-4-aminoanthrachione by the process of patent no. 33991.



   Example 6: 10 kg of p-bromoauthrapyridone (see patent no. 33991, example 1) are in 500 kg
 EMI2.2


 

Claims (1)

mit Autoklaven bei 180"gerührt, bis kein unverändert eh Uromanthrapyridon mehr nachzuweisen ist. Durch Ausäuren wird der Farbstoff ausgefällt. Man erhält so direkt einen wasserlöslichen. mit dem in dem Patente Nr. 33991, Beispiel 4, beschriebenen übereinstimmenden Farbstoff. l'ATHNT. ANSPRUCH : EMI2.3 stirred with an autoclave at 180 "until no more unchanged uromanthrapyridone can be detected. The dyestuff is precipitated by acidification. A water-soluble dyestuff which corresponds to the one described in patent no. 33991, example 4, l'ATHNT. CLAIM : EMI2.3
AT38328D 1907-03-21 1908-09-28 Process for the preparation of amino-, alkylamino- or arylaminoanthrapyridones. AT38328B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201904D 1907-03-21

Publications (1)

Publication Number Publication Date
AT38328B true AT38328B (en) 1909-08-10

Family

ID=5768644

Family Applications (1)

Application Number Title Priority Date Filing Date
AT38328D AT38328B (en) 1907-03-21 1908-09-28 Process for the preparation of amino-, alkylamino- or arylaminoanthrapyridones.

Country Status (1)

Country Link
AT (1) AT38328B (en)

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