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CH162646A - Process for the preparation of an acidic dye of the anthraquinone series. - Google Patents

Process for the preparation of an acidic dye of the anthraquinone series.

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Publication number
CH162646A
CH162646A CH162646DA CH162646A CH 162646 A CH162646 A CH 162646A CH 162646D A CH162646D A CH 162646DA CH 162646 A CH162646 A CH 162646A
Authority
CH
Switzerland
Prior art keywords
preparation
anthraquinone
acidic dye
anthraquinone series
amino
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 CH162646A publication Critical patent/CH162646A/en

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

Description

  

  Verfahren     zur    Darstellung eines sauren Farbstoffes der     Anthraehinonr        eihe.       Gegenstand des vorliegenden Zusatzpa  tentes ist ein Verfahren zur Darstellung eines  sauren Farbstoffes der     Anthrachinonreihe,     welches dadurch gekennzeichnet ist, dass man       1-amino-    4     -halogenanthrachinon-    2     -sulfosaures     Natrium mit     m-AminobenzoesäLire-dimethyl-          amid    zur Umsetzung bringt.  



  <I>Beispiel:</I>  4 Gewichtsteile , l -     amino    - 4 -     bromanthra-          chinon-2-sulfosaures    Natrium werden mit 6  Gewichtsteilen     m-Aminobenzoesäure-dimethyl-          amid,    2 Gewichtsteilen     Natriumcarbonat,    0,5  Gewichtsteilen     Kupferchlorür    und 60 Gewichts  teilen Wasser unter Rühren 8 Stunden auf  65-70   erhitzt. Der     Farbstoff    scheidet sich  in blauen Kristallen ab und wird durch Wa  schen mit Kochsalzlösung und     Umlösen    aus  Wasser in reiner Form erhalten.  



  Der so erhaltene Farbstoff stellt in trocke  nem Zustande ein blaues Pulver dar; er färbt  Wolle aus saurem Bade in rotstickig blauen  Tönen.



  Process for the preparation of an acidic dye of the anthraehinone series. The subject of the present Zusatzpa tentes is a process for the preparation of an acidic dye of the anthraquinone series, which is characterized in that 1-amino-4-haloanthraquinone-2-sulfonic acid sodium is reacted with m-aminobenzoic acid dimethyl amide.



  <I> Example: </I> 4 parts by weight of 1 - amino - 4 - bromoanthraquinone-2-sulfonic acid sodium are mixed with 6 parts by weight of m-aminobenzoic acid dimethylamide, 2 parts by weight of sodium carbonate, 0.5 part by weight of copper chloride and 60 parts by weight share water with stirring heated to 65-70 for 8 hours. The dye separates out in blue crystals and is obtained in pure form by washing with saline solution and dissolving from water.



  The dye thus obtained is a blue powder when dry; he dyes wool from an acid bath in shades of red stinging blue.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines sauren Farbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man 1-amino-4-halogen- anthrachinon - 2 - sulfosaures Natrium mit m- AminobenzoesäLire-dimethylamid zur Umset zung bringt. Der so erhaltene Farbstoff stellt in trocke nem Zustande -ein blaues Pulver dar; er färbt Wolle aus saurem Bade in rotstickig blauen Tönen. <B>UNTERANSPRÜCHE</B> 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man 1-amino-4-brom- anthrachinon-2-sulfosaures Natrium ver wendet. 2. PATENT CLAIM: Process for the preparation of an acidic dye of the anthraquinone series, characterized in that 1-amino-4-halogen-anthraquinone-2-sulfonic acid sodium is reacted with m-aminobenzoic acid dimethylamide. The dye obtained in this way is a blue powder in the dry state; he dyes wool from an acid bath in shades of red stinging blue. <B> SUBClaims </B> 1. Process according to patent claim, characterized in that 1-amino-4-bromo-anthraquinone-2-sulphonic acid sodium is used. 2. Verfahren- nach Patentanspruch, dadurch gekennzeichnet, dass man die Umsetzung durch. Erhitzen in Gegenwart von Wasser, Natriumcarbonat und einer kleinen .Menge von Kupferchlorür ausführt. Method according to claim, characterized in that the implementation is carried out. Heating in the presence of water, sodium carbonate and a small amount of copper chloride.
CH162646D 1931-04-16 1932-03-19 Process for the preparation of an acidic dye of the anthraquinone series. CH162646A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE162646X 1931-04-16
CH158543T 1932-03-19

Publications (1)

Publication Number Publication Date
CH162646A true CH162646A (en) 1933-06-30

Family

ID=25717119

Family Applications (1)

Application Number Title Priority Date Filing Date
CH162646D CH162646A (en) 1931-04-16 1932-03-19 Process for the preparation of an acidic dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH162646A (en)

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