AT64689B - Process for the preparation of sulfur dyes. - Google Patents

Process for the preparation of sulfur dyes.

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Publication number
AT64689B
AT64689B AT64689DA AT64689B AT 64689 B AT64689 B AT 64689B AT 64689D A AT64689D A AT 64689DA AT 64689 B AT64689 B AT 64689B
Authority
AT
Austria
Prior art keywords
preparation
sulfur dyes
desc
red
sulfur
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.)
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Publication date
Application filed by Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT64689B publication Critical patent/AT64689B/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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 gedickt und etwa 10 Stunden auf 220 bis 2500 gebacken. Der Farbstoff färbt Baumwolle im Schwefeluatriumbade in blumigen, rotstichigen braunen Tönen. 



   B e i s p i e l 7. 
 EMI2.1 
 diamin-3. 6-disulfonsäure und   Phtalsäureanhydrid   in wässriger Lösung in quantitativen Ausbeuten dargestellt werden. Sie kristallisiert aus Wasser in orangegelben Kristallblättchen. 



  Leicht löslich in heissem Wasser und Alkalien, schwer löslich oder unlöslich in den meisten organischen Lösungsmitteln, wie Alkohol, Eisessig, Benzol   :   sie lost sic in konzentrierter   Schwefelsäure   mit orangeroter Farbe und geht beim Erhitzen auf 150 bis 200  unter Wasserabspaltung in die braunrot gefärbte Phtalopernon-5.8-disulfosäure über. Ebenso können andere der erwähnten Produkte, wie   Dibromphtatoperinon   (Sachs, Annalen 365, 119),   Perimidyl-o-benzoesäure (Sachs, Annalen 365, 124), benutzt werden.   



   Die Meugenverhältnisse von   Schwefelnatrium   und Schwefel sowie Temperatur und Verschmelzungsdauer können innerhalb weiter Grenzen variieren. Man erhält je nachdem FarbstoffevongelbereroderrötererNuauce. 

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



   <Desc / Clms Page number 1>
 
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 thickened and baked to 220 to 2500 for about 10 hours. The dye dyes cotton in a sulphurous sodium bath in flowery, reddish brown tones.



   Example 7.
 EMI2.1
 diamine-3. 6-disulfonic acid and phthalic anhydride can be presented in quantitative yields in aqueous solution. It crystallizes from water in orange-yellow crystal flakes.



  Easily soluble in hot water and alkalis, sparingly soluble or insoluble in most organic solvents such as alcohol, glacial acetic acid, benzene: it dissolves in concentrated sulfuric acid with an orange-red color and, when heated to 150 to 200, turns into the brown-red colored phthalopernone- 5.8-disulfonic acid over. Likewise, other of the products mentioned, such as dibromophtatoperinone (Sachs, Annalen 365, 119), perimidyl-o-benzoic acid (Sachs, Annalen 365, 124), can be used.



   The proportions of sodium sulphide and sulfur as well as temperature and fusion time can vary within wide limits. Depending on the dye, you get yellow-red-red-nuauce.

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

Claims (1)

PATENT-ANSPRUCHE : 1. Verfahren zur Darstellung von Schwefelfarbstoffen. dadurch gekennzeichnet, dass man Nitro- bzw. Aminoderivate des Phtaloperinons in Gegenwart von Kupfer oder Kupferverbindungen der Schwofelschmeielze unterwirft 2. Verfahren zur Darstellung von Schwefelfarbstoffen, dadurch gekennzeichnet, dass EMI2.2 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIMS: 1. Process for the preparation of sulfur dyes. characterized in that nitro or amino derivatives of phthaloperinone are subjected to the Schwofelschmeielze in the presence of copper or copper compounds 2. A method for the preparation of sulfur dyes, characterized in that EMI2.2 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT64689D 1912-01-20 1913-01-15 Process for the preparation of sulfur dyes. AT64689B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE64689X 1912-01-20

Publications (1)

Publication Number Publication Date
AT64689B true AT64689B (en) 1914-05-11

Family

ID=5632509

Family Applications (1)

Application Number Title Priority Date Filing Date
AT64689D AT64689B (en) 1912-01-20 1913-01-15 Process for the preparation of sulfur dyes.

Country Status (1)

Country Link
AT (1) AT64689B (en)

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