CH204131A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH204131A
CH204131A CH204131DA CH204131A CH 204131 A CH204131 A CH 204131A CH 204131D A CH204131D A CH 204131DA CH 204131 A CH204131 A CH 204131A
Authority
CH
Switzerland
Prior art keywords
production
dye
vat dye
vat
azobenzene
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 CH204131A publication Critical patent/CH204131A/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)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>200369.</B>    Verfahren zur Herstellung eines     Nüpenfarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines     Küpenfarb-          stoff-es,    dadurch gekennzeichnet,     dass    man ein  funktionelles Derivat der     Azobenzol-3,   <B>5, W,</B>       5'-tetracarbonsäure    mit     1-Aminoanthrachiinon     im     Molekularverhältnis   <B>1 :</B> 4 kondensiert.  



  Der so erhaltene Farbstoff löst sich in  konzentrierter Schwefelsäure mit     orangebrau-          ner    Farbe     und    färbt Baumwolle aus dunkel  roter     Küpe    in sehr echten     grünsticbig    gelben  Tönen.    <I>Beispiel:</I>    <B>89</B> Teile     1-Aminoanthrachiiion    werden in  etwa<B>1000</B> Teilen     o-Dichlorbenzol    bei etwa  <B>160 11</B> gelöst.

   Zu dieser Lösung gibt man  43 Teile     Azobenzol-3,   <B>5, 3',</B>     6'-tetracarbon-          säuretetrachlorid    (Schmelzpunkt<B>133 ' C)</B> zu       und    rührt die Mischung zwei Stunden bei  etwa 140-160<B>0 C.</B> Nach dem Erkalten wird  der Farbstoff abgesaugt, gewaschen und ge  trocknet.    Das angewandte     Azobenzol-8,   <B>5, 3',</B>     5'-          tetracarbonsäuretetrachlorid    kann aus der ent  sprechenden Säure mit     Phosphorpentachlorid     hergestellt werden.

   Die     Tetracarbonsäure    selbst  kann beispielsweise durch alkalische Reduk  tion von     5-Nitroisophthalsäure    gewonnen wer  den.



  Additional patent to main patent no. <B> 200369. </B> Process for the production of a pebble dye. The present patent relates to a process for the production of a vat dye, characterized in that a functional derivative of azobenzene-3, <B> 5, W, </B> 5'-tetracarboxylic acid is used with 1-aminoanthraquinone in the molecular ratio <B> 1: </B> 4 condensed.



  The dye thus obtained dissolves in concentrated sulfuric acid with an orange-brown color and dyes cotton from a dark red vat in very genuine greenish-yellow shades. <I> Example: </I> <B> 89 </B> parts of 1-aminoanthrachiumione are dissolved in about <B> 1000 </B> parts of o-dichlorobenzene at about <B> 160 11 </B>.

   43 parts of azobenzene-3, <B> 5, 3 ', </B> 6'-tetracarboxylic acid tetrachloride (melting point 133 ° C) are added to this solution and the mixture is stirred for two hours about 140-160 ° C. After cooling, the dye is suctioned off, washed and dried. The azobenzene-8, <B> 5, 3 ', </B> 5'-tetracarboxylic acid tetrachloride used can be prepared from the corresponding acid with phosphorus pentachloride.

   The tetracarboxylic acid itself can be obtained, for example, by alkaline reduction of 5-nitroisophthalic acid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man ein funktionelles Derivat der Azobenzol-3, 6, <B>S',</B> 5'-tetracarbonsäure mit 1-Aminoanthra- chinon im Molekularverhältnis <B>1:</B> 4 konden siert. Claim: Process for the production of a vat dye, characterized in that a functional derivative of azobenzene-3,6, <B> S ', </B> 5'-tetracarboxylic acid with 1-aminoanthraquinone in a molecular ratio of <B> 1: </B> 4 condensed. Der so erhaltene Farbstoff löst sich in konzentrierter Schwefelsäure mit orangebrau- ner Farbe und färbt Baumwolle aus dunkel roter Küpe in sehr echten grünstichig gelben Tönen. The dye thus obtained dissolves in concentrated sulfuric acid with an orange-brown color and dyes cotton from a dark red vat in very real greenish yellow tones.
CH204131D 1936-12-03 1937-11-26 Process for the production of a vat dye. CH204131A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE204131X 1936-12-03
CH200369T 1938-03-21

Publications (1)

Publication Number Publication Date
CH204131A true CH204131A (en) 1939-04-15

Family

ID=25723477

Family Applications (1)

Application Number Title Priority Date Filing Date
CH204131D CH204131A (en) 1936-12-03 1937-11-26 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH204131A (en)

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