CH209553A - 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
CH209553A
CH209553A CH209553DA CH209553A CH 209553 A CH209553 A CH 209553A CH 209553D A CH209553D A CH 209553DA CH 209553 A CH209553 A CH 209553A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
new derivative
dye
new
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 CH209553A publication Critical patent/CH209553A/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

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

Description

  

  Zusatzpatent 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<B>1</B>     Mol    des     Monoazofarbstoffes,    der er  halten wird durch Vereinigen eines Moleküls  des     1,3-Diamitibenzols    mit<B>1</B>     Mol    der     diazo-          tierten        Anilin-2,5-disulfonsäure,

      mit 2     Mol          Acetyleblorid    in Gegenwart einer tertiären  Base     acyliert.     



  Der neue Farbstoff stellt ein orangerotes  Pulver dar     und    färbt Wolle in echten gelben  Tönen.  



  <I>Beispiel:</I>  <B>1</B> Teil des     Monoazofarbstoffes,    der er  halten wird durch Vereinigen von     1,3-Di-          aminobenzol.    mit der     diazotierten        Anilin-2,5-          disulfonsäure,    wird in<B>6,7</B> Teilen     Pyridin     suspendiert und bei 400 mit<B>1,25</B> Teilen       Acetylchlorid    versetzt. Man erwärmt allmäh-    lieh auf<B>900</B> und hält diese Temperatur  <B>1</B>1/2 Stunden. Nach dieser Zeit wird das     Di-          acetylprodukt    abgeschieden und getrocknet.



  Additional patent to main patent no. 205164. Process for the production of a new derivative of an azo dye. It has been found that a new derivative of an azo dye is obtained by adding <B> 1 </B> moles of the monoazo dye obtained by combining one molecule of 1,3-diamitibenzene with <B> 1 </B> Mol of the diazo-aniline-2,5-disulfonic acid,

      acylated with 2 moles of acetyl chloride in the presence of a tertiary base.



  The new dye is an orange-red powder and dyes wool in real yellow tones.



  <I> Example: </I> <B> 1 </B> Part of the monoazo dye that is obtained by combining 1,3-diaminobenzene. with the diazotized aniline-2,5-disulfonic acid, is suspended in 6.7 parts of pyridine and, at 400, 1.25 parts of acetyl chloride are added. It is gradually heated to <B> 900 </B> and this temperature is maintained for <B> 1 </B> 1/2 hours. After this time, the di-acetyl product is separated out and dried.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines neuen Derivates eines Azofarbstoffes, dadurch ge kennzeichnet, dass man<B>1</B> Mol des Monoazofarb- stoff es, der erhalten wird durch Vereinigen eines Moleküls des 1,3-Diaminobenzols mit <B>1</B> Mol der diazotierten Anilin-2,5-disulfonsäure, <B> PATENT CLAIM: </B> Process for the preparation of a new derivative of an azo dye, characterized in that <B> 1 </B> mol of the monoazo dye obtained by combining a molecule of 1,3 - Diaminobenzene with <B> 1 </B> mol of the diazotized aniline-2,5-disulfonic acid, mit 2 Mol Acetylehlorid in Gegenwart einer tertiären Base acyliert. Der neue Farbstoff stellt ein orangerotes Pulver dar und färbt Wolle in echten gelben Tönen. acylated with 2 moles of acetyl chloride in the presence of a tertiary base. The new dye is an orange-red powder and dyes wool in real yellow tones.
CH209553D 1937-01-26 1937-01-26 Process for the preparation of a new derivative of an azo dye. CH209553A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH209553T 1937-01-26
CH205164T 1939-02-01

Publications (1)

Publication Number Publication Date
CH209553A true CH209553A (en) 1940-04-15

Family

ID=25724140

Family Applications (1)

Application Number Title Priority Date Filing Date
CH209553D CH209553A (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) CH209553A (en)

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