CH209555A - Process for the preparation of a new derivative of an azo dye. - Google Patents

Process for the preparation of a new derivative of an azo dye.

Info

Publication number
CH209555A
CH209555A CH209555DA CH209555A CH 209555 A CH209555 A CH 209555A CH 209555D A CH209555D A CH 209555DA CH 209555 A CH209555 A CH 209555A
Authority
CH
Switzerland
Prior art keywords
dye
azo dye
preparation
new derivative
diazotized
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH209555A publication Critical patent/CH209555A/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
    • C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 205164.    Verfahren zur Herstellung eines neuen Derivates eines     Azofarbstoffes.       Es wurde gefunden, dass man ein neues  Derivat eines     Azofarbstoffes    erhält, wenn man  1     Mol    des     Tetrakisazofarbstoffes,    der erhalten  wird durch Vereinigen eines Moleküls     1,3-          Diaminobenzol    mit 2 Molekülen des     diazo-          tierten        Monazofarbstoffes    aus     diazotierter        2-          Arninorraphthalin-4,

  8-disulforrsäure    und     1-          Naphthylamin,    mit 2     Mol        Benzoylchlorid    in  Gegenwart einer tertiären Base     acyliert.     



  Der neue Farbstoff stellt ein braunes Pul  ver dar und färbt Baumwolle in echten rot  braunen Tönen.  



  <I>Beispiel:</I>  1 Teil des     Tetrakisazofarbstoffes,    der er  halten wird durch Vereinigen eines Moleküls       1,3-Diamirroberizol    mit 2 Molekülen des     di-          azotierten        Nonazofarbstoffes    aus     diazotierter          2-Arninonaphthalin-4,8-disulfonsärire    und 1  Naphtliylamin, wird in 5 Teilen     Pyridin    sus  pendiert und bei 401 mit 1,68 Teilen     Ben-          zoylchlorid    versetzt. Man erwärmt allmählich    auf 90   und hält diese Temperatur 1 Stunde.  Nach dieser Zeit wird das     Dibenzoylprodukt     abgeschieden und getrocknet.



  <B> Additional patent </B> to main patent no. 205164. Process for the preparation of a new derivative of an azo dye. It has been found that a new derivative of an azo dye is obtained if 1 mole of the tetrakisazo dye, which is obtained by combining one molecule of 1,3-diaminobenzene with 2 molecules of the diazotized monazo dye from diazotized 2-aminorraphthalene-4,

  8-disulfuric acid and 1-naphthylamine, acylated with 2 moles of benzoyl chloride in the presence of a tertiary base.



  The new dye is a brown powder and dyes cotton in real red-brown tones.



  <I> Example: </I> 1 part of the tetrakisazo dye that is obtained by combining a molecule of 1,3-diamirroberizole with 2 molecules of the diazotized nonazo dye from diazotized 2-aminonaphthalene-4,8-disulfonic acid and 1 naphthylamine, is suspended in 5 parts of pyridine and added at 401 with 1.68 parts of benzoyl chloride. The temperature is gradually increased to 90 and this temperature is maintained for 1 hour. After this time, the dibenzoyl product is deposited and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Derivates eines Azofarbstoffes, 'dadurch ge kennzeichnet, dass man 1 Mol des Tetrakis- azofarbstoffes, der erhalten wird durch Ver einigen eines Moleküls 1,3-Diaminobenzol mit 2 Molekülen des diazotierten Monazofarb- stoffes aus diazotierter 2-Aminonaphthalin-4,8- disulfonsäure und 1-Naphthylamin, PATENT CLAIM: Process for the preparation of a new derivative of an azo dye, 'characterized in that 1 mol of the tetrakis azo dye, which is obtained by combining one molecule of 1,3-diaminobenzene with 2 molecules of the diazotized monazo dye from diazotized 2- Aminonaphthalene-4,8-disulfonic acid and 1-naphthylamine, mit 2 Mol Benzoylchlorid in Gegenwart einer tertiären Base acyliert. Der neue Farbstoff stellt ein braunes Pul ver dar und färbt Baumwolle in echten rot braunen Tönen. acylated with 2 moles of benzoyl chloride in the presence of a tertiary base. The new dye is a brown powder and dyes cotton in real red-brown tones.
CH209555D 1937-01-26 1937-01-26 Process for the preparation of a new derivative of an azo dye. CH209555A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH209555T 1937-01-26
CH205164T 1939-02-01

Publications (1)

Publication Number Publication Date
CH209555A true CH209555A (en) 1940-04-15

Family

ID=25724142

Family Applications (1)

Application Number Title Priority Date Filing Date
CH209555D CH209555A (en) 1937-01-26 1937-01-26 Process for the preparation of a new derivative of an azo dye.

Country Status (1)

Country Link
CH (1) CH209555A (en)

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