CH206918A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH206918A
CH206918A CH206918DA CH206918A CH 206918 A CH206918 A CH 206918A CH 206918D A CH206918D A CH 206918DA CH 206918 A CH206918 A CH 206918A
Authority
CH
Switzerland
Prior art keywords
production
dye
red
vat dye
vat
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 CH206918A publication Critical patent/CH206918A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/32—Preparation of azo dyes from other azo compounds by reacting carboxylic or sulfonic groups, or derivatives thereof, with amines; by reacting keto-groups with amines
    • C09B43/36—Preparation of azo dyes from other azo compounds by reacting carboxylic or sulfonic groups, or derivatives thereof, with amines; by reacting keto-groups with amines with amino-anthracene or amino-anthraquinone dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Zusatzpatent    zum     Hauptpatent    Nr. 200369.    Verfahren zur Herstellung eines     güpenfarbstoffes.       Vorliegendes Patent bezieht sieh auf ein  Verfahren zur     Herstellung    eines Küpenfarb-    Stoffes, dadurch gekennzeichnet, dass man ein       Dicarbonsäuredichlorid    der Formel:  
EMI0001.0006     
    mit     1-Aminoanthrachinon    im     Mo@lekularver-          hältnis    1 : 2 kondensiert.  



       Der    so erhaltene Farbstoff löst sich in  konzentrierter     Schwefelsäure    mit     rotvioletter     Farbe und färbt Baumwolle aus     dunkel-          rotvioletter        Küpe    in gelben Tönen von her  vorragenden     Echtheitseigenschaften.       <I>Beispiel:

  </I>  Durch Kondensation von     Benzidin        mit     2 Molekülen     4-Nitroso-benzoesäure-methyl-          esier,        anschliessende        Verseifung    und Um  setzung mit     Phosphorpentachlorid    erhält man  ein     Dicarbons@äuredichlorid    der Formel:  
EMI0001.0025     
    das in orangegelben Prismen vom     Schmelz-          punkt    235   C     kristallisiert.     



  48 Teile dieser Verbindung werden     unter     Rühren langsam in eine auf etwa.<B>HOC</B> C er-         hitzte    Lösung von 45 Teilen     1-Aminoanthra-          chinon    in etwa 500 Teilen     o-Diehlorbenzol          eingetragen.    Man     rührt    dann     dm        Reaktions-          gemiscE    noch etwa zwei Stunden bei     etwa              9.00'C,    lässt es erkalten,     ,satugt    den gebildeten  kristallinen Niederschlag ab und trocknet ihn.



      Additional patent to main patent No. 200369. Process for the production of a high quality dye. The present patent relates to a process for the production of a vat dye, characterized in that a dicarboxylic acid dichloride of the formula:
EMI0001.0006
    condensed with 1-aminoanthraquinone in a molecular ratio of 1: 2.



       The dye thus obtained dissolves in concentrated sulfuric acid with a red-violet color and dyes cotton from a dark-red-violet vat in yellow shades with excellent fastness properties. <I> example:

  </I> The condensation of benzidine with 2 molecules of 4-nitroso-benzoic acid methylsier, subsequent saponification and reaction with phosphorus pentachloride gives a dicarboxylic acid dichloride of the formula:
EMI0001.0025
    which crystallizes in orange-yellow prisms with a melting point of 235 ° C.



  48 parts of this compound are slowly added, with stirring, to a solution, heated to about. HOC, of 45 parts of 1-aminoanthraquinone in about 500 parts of o-diehlobenzene. The reaction mixture is then stirred for about two hours at about 9.00 ° C., allowed to cool, the crystalline precipitate formed is sucked off and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Iiüpen- farbstoffes, dadurch gekennzeichnet, dass man ein Dicarbonsäuredichlorid der Formel: EMI0002.0007 mit 1-Aminoanthrachinon im Molekularver- hältnis 1 : 2 kondensiert. Der so erhaltene Farbstoff löst sich in konzentrierter Schwefelsäure mit rotvioletter Farbe und färbt Baumwolle aus dunkel- rotvioletter Küpe in gelben Tönen von her vorragenden Echtheitseigenschaften. PATENT CLAIM: A process for the production of an Iüpen dye, characterized in that a dicarboxylic acid dichloride of the formula: EMI0002.0007 condensed with 1-aminoanthraquinone in a molecular ratio of 1: 2. The dye thus obtained dissolves in concentrated sulfuric acid with a red-violet color and dyes cotton from a dark-red-violet vat in yellow shades with excellent fastness properties.
CH206918D 1937-03-25 1938-03-21 Process for the production of a vat dye. CH206918A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE206918X 1937-03-25
CH200369T 1938-03-21

Publications (1)

Publication Number Publication Date
CH206918A true CH206918A (en) 1939-08-31

Family

ID=25723484

Family Applications (1)

Application Number Title Priority Date Filing Date
CH206918D CH206918A (en) 1937-03-25 1938-03-21 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH206918A (en)

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