CH135400A - Process for the preparation of a vat dye containing bromine. - Google Patents

Process for the preparation of a vat dye containing bromine.

Info

Publication number
CH135400A
CH135400A CH135400DA CH135400A CH 135400 A CH135400 A CH 135400A CH 135400D A CH135400D A CH 135400DA CH 135400 A CH135400 A CH 135400A
Authority
CH
Switzerland
Prior art keywords
preparation
bromine
vat dye
anthradianthrone
dye containing
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 CH135400A publication Critical patent/CH135400A/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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/70—Benzo-, naphtho-, and anthra-dianthrones

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent     Nr.    132920.    Verfahren zur Darstellung eines bromhaltigen     Nüpenfarbstoffes.       Im Hauptpatent wurde gezeigt, dass man  einen neuen und wertvollen orange     färbenden          Küpenfarbstoff    erhält, wenn man     ms-Anthra-          dianthron    mit einem     Chlorierungsmittel    be  handelt.  



  Es wurde nun gefunden, dass man eben  falls einen neuen und wertvollen, orange       farbenden        Küpenfarbstoff    erhält, wenn man       ins-Anthradianthron    mit einem     Bromierungs-          mittel    behandelt. Die Einführung des Broms  kann sowohl durch Behandlung mit Brom als  auch mit bromentwickelnden Stoffen erfolgen.  Vorteilhaft arbeitet man in Gegenwart von  Katalysatoren. Als solche kommen zum  Beispiel Jod, Eisen, Schwefel in Frage; man       kann    auch in Gegenwart von Verdünnungs  mitteln arbeiten.

      <I>Beispiel:</I>  10 Teile     m-Anthradianthron    werden in  250-300 Teilen Nitrobenzol nach Zugabe  von 0,5 Teilen Eisen bei     160     unter Rühren  mit etwa 15 Teilen Brom versetzt. Man rührt    6 Stunden bei dieser Temperatur und     saugt     nach dem Erkalten ab. Der erhaltene Farb  stoff, der Analyse nach ein     Dibromderivat,     löst sich in konzentrierter Schwefelsäure  violett,     küpt    blauviolett und liefert auf  Baumwolle orange Färbungen.



      Additional patent to main patent no. 132920. Process for the preparation of a bromine-containing pomace dye. The main patent showed that a new and valuable orange-colored vat dye is obtained if ms-anthradianthrone is treated with a chlorinating agent.



  It has now been found that a new and valuable, orange-colored vat dye is also obtained if ins-anthradianthrone is treated with a brominating agent. The introduction of bromine can take place both by treatment with bromine and with bromine-developing substances. It is advantageous to work in the presence of catalysts. For example, iodine, iron, sulfur come into consideration as such; you can also work in the presence of diluents.

      <I> Example: </I> 10 parts of m-anthradianthrone in 250-300 parts of nitrobenzene are mixed with about 15 parts of bromine after adding 0.5 part of iron at 160 ° C. while stirring. The mixture is stirred for 6 hours at this temperature and filtered off with suction after cooling. The dye obtained, which is analyzed according to a dibromo derivative, dissolves in concentrated sulfuric acid violet, küpt blue-violet and gives orange colorations on cotton.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines bromhal tigen Küpenfarbstoffes, dadurch gekenn zeichnet, dass man ms-Anthradianthron mit einem Bromierungsmittel behandelt. Der neue Farbstoff, ein Dibrom-ms-An- thradianthron, löst sich in konzentrierter Schwefelsäure mit violetter Farbe. Er liefert eine blauviolette Küpe und auf Baumwolle orange Färbungen von hervorragenden Echt heitseigenschaften. <B>UNTERANSPRÜCHE:</B> 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man bei der Bromierung in Gegenwart von Katalysatoren arbeitet. 2. PATENT CLAIM: Process for the preparation of a bromine term vat dye, characterized in that ms-anthradianthrone is treated with a brominating agent. The new dye, a dibromos-anthradianthrone, dissolves in concentrated sulfuric acid with a purple color. It provides a blue-violet vat and orange dyeings on cotton with excellent fastness properties. SUBClaims: 1. Process according to claim, characterized in that the bromination is carried out in the presence of catalysts. 2. Verfahren nach Patentanspruch und Unter anspruch 1, dadurch gekennzeichnet, dass man zur Bromierung Brom entwiekelnde Stoffe benutzt. 3. Verfahren nach Patentanspruch und Unter ansprüchen 1 und 2, dadurch gekenn- zeichnet, dass man in Gegenwart eines Verdünnungsmittels arbeitet. Process according to patent claim and sub-claim 1, characterized in that bromine-developing substances are used for the bromination. 3. The method according to claim and sub-claims 1 and 2, characterized in that one works in the presence of a diluent.
CH135400D 1927-11-21 1927-11-21 Process for the preparation of a vat dye containing bromine. CH135400A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH135400T 1927-11-21
CH132920T 1927-11-21

Publications (1)

Publication Number Publication Date
CH135400A true CH135400A (en) 1929-09-15

Family

ID=25711958

Family Applications (1)

Application Number Title Priority Date Filing Date
CH135400D CH135400A (en) 1927-11-21 1927-11-21 Process for the preparation of a vat dye containing bromine.

Country Status (1)

Country Link
CH (1) CH135400A (en)

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