CH175252A - Process for the preparation of an anthraquinone dye. - Google Patents

Process for the preparation of an anthraquinone dye.

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Publication number
CH175252A
CH175252A CH175252DA CH175252A CH 175252 A CH175252 A CH 175252A CH 175252D A CH175252D A CH 175252DA CH 175252 A CH175252 A CH 175252A
Authority
CH
Switzerland
Prior art keywords
preparation
green
anthraquinone dye
amino
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH175252A publication Critical patent/CH175252A/en

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

Description

  

  Verfahren zur Herstellung eines     Anthraehinonfarbstoifes.       Gegenstand des Hauptpatentes ist ein  Verfahren zur     Herstellunb    eines     Anthra-          ehinonfarbstoffes    durch Umsatz von 1-Amino       5-acetylamino-4-bromanthrachinon-2-sulfon-          säure    mit     Hexahydroanilin.     



  Es wurde nun gefunden, dass ein Farb  stoff mit ähnlichen Eigenschaften, aber etwas  nach grün verschobener Nuance erhalten  wird, wenn man die     1-Amino-5-acetylamino-          4    -     bromanthrachinon    - 2 -     sulfonsäure    mit     p-          Aminoacetanilid    umsetzt. Der neue Farbstoff  löst sich in Wasser mit grünblauer Farbe  und färbt Wolle aus saurem Bade lebhaft  blaugrün.  



  <I>Beispiel:</I>  5 Gewichtsteile     l.-amino-5-acetylamino-4-          bromanthrachinon    - 2 -     sulfonsaures    Natrium  werden mit 10 Gewichtsteilen     p-Amino-acet-          anilid    unter Zusatz von 5 Gewichtsteilen       Natriumbikarbonat    und 0,3 Gewichtsteilen       Kupferchlorür    in<B>7,5</B> Gewichtsteilen Wasser    so lange unter Rühren auf 60   erhitzt, bis  eine Probe unter dem Mikroskop neben den  abgeschiedenen blauen Nadeln des gebildeten  Kondensationsproduktes kein Ausgangspro  dukt mehr zeigt. Der abgeschiedene Farb  stoff löst sich in Wasser mit grünblauer  Farbe und färbt Wolle aus saurem Bade leb  haft blaugrün.



  Process for the preparation of an anthraquinone dye. The main patent relates to a process for the preparation of an anthraquinone dye by reacting 1-amino-5-acetylamino-4-bromoanthraquinone-2-sulfonic acid with hexahydroaniline.



  It has now been found that a dye with similar properties, but a shade shifted slightly towards green, is obtained when 1-amino-5-acetylamino- 4 - bromoanthraquinone - 2 - sulfonic acid is reacted with p-aminoacetanilide. The new dye dissolves in water with a green-blue color and dyes wool from acid baths a vivid blue-green.



  <I> Example: </I> 5 parts by weight of 1.-amino-5-acetylamino-4-bromoanthraquinone-2-sulfonic acid sodium are mixed with 10 parts by weight of p-amino-acetanilide with the addition of 5 parts by weight of sodium bicarbonate and 0.3 parts by weight Copper chloride in 7.5 parts by weight of water is heated to 60 with stirring until a sample under the microscope next to the deposited blue needles of the condensation product no longer shows any starting product. The deposited dye dissolves in water with a green-blue color and dyes wool from acidic baths vividly blue-green.

Claims (1)

PATENTANSPRUCIi Verfahren zur Herstellung eines Anthra- chinonfarbstoffes, dadurch gekennzeichnet, dass man 1-Amino - 5 - acetylamino - 4 - brom- anthrachinon - 2,- sulfonsäure mit p - Amino- acetanilid umsetzt. Der neue Farbstoff löst sich in Wasser mit grünblauer Farbe und färbt Wolle aus saurem Bade lebhaft blaugrün. PATENT CLAIMS Process for the production of an anthraquinone dye, characterized in that 1-amino-5-acetylamino-4-bromo-anthraquinone-2-sulfonic acid is reacted with p-amino-acetanilide. The new dye dissolves in water with a green-blue color and dyes wool from acid baths a vivid blue-green.
CH175252D 1933-02-01 1934-01-26 Process for the preparation of an anthraquinone dye. CH175252A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE175252X 1933-02-01
CH172371T 1934-01-26

Publications (1)

Publication Number Publication Date
CH175252A true CH175252A (en) 1935-02-15

Family

ID=25719217

Family Applications (1)

Application Number Title Priority Date Filing Date
CH175252D CH175252A (en) 1933-02-01 1934-01-26 Process for the preparation of an anthraquinone dye.

Country Status (1)

Country Link
CH (1) CH175252A (en)

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