CH297675A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH297675A
CH297675A CH297675DA CH297675A CH 297675 A CH297675 A CH 297675A CH 297675D A CH297675D A CH 297675DA CH 297675 A CH297675 A CH 297675A
Authority
CH
Switzerland
Prior art keywords
mol
production
chloride
vat dye
vat
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesel Anilin-Soda-Fabrik
Original Assignee
Basf 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 Basf Ag filed Critical Basf Ag
Publication of CH297675A publication Critical patent/CH297675A/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
    • C09B3/22—Dibenzanthrones; Isodibenzanthrones
    • C09B3/30—Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 236588.    Verfahren     zur        Herstellung        eines        Küpenfarbstoffes.            Gegenstand    des Hauptpatentes ist ein Ver  fahren zur Herstellung eines     Küpenfarbstof-          fes    der     Dibenzanthronreihe,    wobei 1     Mol        Di-          benzanthron    in einem grossen Überschuss von       geselimo1zenem    wasserfreiem Aluminiumchlo  rid mit etwa 2     Mol        Thionylchlorrid    umgesetzt  wird.  



  In einem Zusatzpatent wurde gezeigt, dass  man auch durch     Umsetzen    von 1     Mol        Dibenz-          anthron    in einem grossen     Übersehuss    von     ge-          sehmolzenem    wasserfreiem Aluminiumchlorid  mit. etwa 2     Mol        Schwefelchlorür    einen wert  vollen     Küpenfarbstoff    erhält.  



  Es wurde nun gefunden, dass man eben  falls einen wertvollen     Küpenfarbstoff    der     Di-          benzanthronreihe    erhält, wenn man 1.     Mol          Monobromisodibenzanthron        in    einem grossen       Überschuss    von geschmolzenem Aluminium  chlorid zunächst mit etwa 1.     Mol    Schwefel  ehlorür und dann mit etwa 1     Mol        Thionyl-          ehlorid    in     Gegenwart    eines     Alkalisulfits    um  setzt.

   Die Menge des Aluminiumchlorids ist  dabei zweckmässig etwa sechs- bis achtmal so  gross wie die des     Monobromisodibenzanthrons.     



  Der neue Farbstoff färbt Baumwolle aus  der     Küpe    in gut egalisierten, marineblauen  Tönen von ausgezeichneter     Wassertropfecht-          heit.     



  Die im folgenden Beispiel genannten Teile  sind Gewichtsteile.         Beispiel:     In eine 65-76  heisse Schmelze von 200  Teilen     wasserfreiem    Aluminiumchlorid, 30  Teilen     Natriumsulfit    und 8 Teilen     Schwefel-          chlorür    werden unter Rühren 25 Teile     Mono-          bromisodibenzanthron    (erhältlich durch     Bro-          mieren    von     Isodibenzanthron    in     Chlorsulfon-          säure)    eingetragen;

   dann rührt man die  Schmelze bei der gleichen Temperatur noch  etwa 2 Stunden lang weiter, lässt langsam 7,2  Teile     Thionylchlorid    zufliessen und rührt noch  eine Stunde lang weiter. Nach dem üblichen  Aufarbeiten erhält man einen Farbstoff, der  Baumwolle in gut egalisierten, marineblauen  Tönen von ausgezeichneter     Wassertropfecht-          heit    färbt.



  <B> Additional patent </B> to main patent no. 236588. Process for the production of a vat dye. The main patent relates to a process for the production of a vat dye of the dibenzanthrone series, 1 mol of dibenzanthrone being reacted in a large excess of gelatinized anhydrous aluminum chloride with about 2 mol of thionyl chloride.



  In an additional patent, it was shown that by reacting 1 mole of dibenzanthrone in a large excess of molten anhydrous aluminum chloride. about 2 moles of sulfur chloride contains a valuable vat dye.



  It has now been found that a valuable vat dye of the dibenzanthrone series is also obtained if 1. mol of monobromoisodibenzanthrone in a large excess of molten aluminum chloride is initially mixed with about 1. mol of sulfur and then with about 1 mol of thionyl chloride Presence of an alkali sulfite sets.

   The amount of aluminum chloride is expediently about six to eight times as large as that of monobromoisodibenzanthrone.



  The new dye dyes cotton from the vat in well-balanced, navy blue shades with excellent water resistance.



  The parts mentioned in the following example are parts by weight. Example: 25 parts of monobromoisodibenzanthrone (obtainable by brominating isodibenzanthrone in chlorosulfonic acid) are introduced into a 65-76 hot melt of 200 parts of anhydrous aluminum chloride, 30 parts of sodium sulphite and 8 parts of sulfuric chloride;

   then the melt is stirred for a further 2 hours at the same temperature, 7.2 parts of thionyl chloride are allowed to flow in slowly and stirring is continued for a further hour. After the usual work-up, a dye is obtained which dyes cotton in well-leveled, navy blue shades with excellent water resistance.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes der Dibenzanthronreihe, dadurch gekennzeichnet, dass man 1 Mol Monobrom- isodibenzanthron in einem grossen LTbersehuss von geschmolzenem Aluminiumchlorid zu nächst mit etwa 1 Mol Schwefelchlorür und dann mit etwa 1 Mol Thionylchlorid in Ge genwart eines Alkalisulfits umsetzt. PATENT CLAIM: Process for the production of a vat dye of the dibenzanthrone series, characterized in that 1 mol of monobromoisodibenzanthrone in a large excess of molten aluminum chloride is initially reacted with about 1 mol of sulfur chloride and then with about 1 mol of thionyl chloride in the presence of an alkali sulfite. Der neue Farbstoff färbt Baumwolle aus der Küpe in gut egalisierten, marineblauen Tönen von ausgezeichneter Wassertropfecht- heit. The new dye dyes cotton from the vat in well-balanced, navy blue shades with excellent water resistance.
CH297675D 1942-03-17 1943-08-02 Process for the production of a vat dye. CH297675A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE297675X 1942-03-17
CH236588T 1943-08-02

Publications (1)

Publication Number Publication Date
CH297675A true CH297675A (en) 1954-03-31

Family

ID=25728172

Family Applications (1)

Application Number Title Priority Date Filing Date
CH297675D CH297675A (en) 1942-03-17 1943-08-02 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH297675A (en)

Similar Documents

Publication Publication Date Title
DE1052016B (en) Process for the production of acidic dyes of the anthraquinone series
CH297671A (en) Process for the production of a vat dye.
CH297674A (en) Process for the production of a vat dye.
CH297672A (en) Process for the production of a vat dye.
CH297673A (en) Process for the production of a vat dye.
DE950948C (en) Process for the production of sulphurous cow dyes
CH181719A (en) Process for the production of a new dye of the anthraquinone series.
CH181718A (en) Process for the production of a new dye of the anthraquinone series.
CH220219A (en) Process for the production of a new anthraquinone derivative.
CH297670A (en) Process for the production of a vat dye.
CH181721A (en) Process for the production of a new dye of the anthraquinone series.
CH157666A (en) Process for the production of a condensation product.
CH161744A (en) Process for the production of a new dye of the dibenzanthrone series.
CH292083A (en) Process for the preparation of a monoazo dye.
CH180293A (en) Process for the production of a new dye.
CH189138A (en) Process for the preparation of an anthraquinone compound.
CH298764A (en) Process for the production of an acidic wool dye.
CH298760A (en) Process for the production of an acidic wool dye.
CH259731A (en) Process for the production of a lively acidic milled dye of the anthraquinone series.
CH298754A (en) Process for the production of an acidic wool dye.
CH178544A (en) Process for the production of a brominated vat dye.
CH298753A (en) Process for the production of an acidic wool dye.
CH253955A (en) Process for the production of a new dye of the anthraquinone series.
CH301345A (en) Process for the preparation of a sulfonic acid amide of the anthraquinone series.
CH180582A (en) Process for the production of a new dye.