CH209547A - 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
CH209547A
CH209547A CH209547DA CH209547A CH 209547 A CH209547 A CH 209547A CH 209547D A CH209547D A CH 209547DA CH 209547 A CH209547 A CH 209547A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
azo dye
new derivative
aminobenzene
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 CH209547A publication Critical patent/CH209547A/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  1     Mol    des     Disazofarbstoffes,    der erhalten wird  durch Vereinigen eines Moleküls     Aminobenzol     mit 1     Mol    des dianotierten     Monoazofarbstoffes     aus dianotierter     2-Aminonaphthalin-4.8-disul-          fonsäure    und     Aminobenzol,

      mit 2     Mol        Ben-          zoylchlorid    in Gegenwart einer tertiären Base       acyliert.     



  Der neue Farbstoff stellt ein braunes Pulver  dar und färbt Baumwolle in echten rotgelben  Tönen an.  



  <I>Beispiel:</I>  1 Teil des     Disazofarbstoffes,der    erhalten  wird durch Vereinigen von     Aminobenzol    mit  dein dianotierten     Monoazofarbstoff    aus diano  tierter     2-Aminonaphtlcalin-4.8-disulfonsäuc-e     und     Aminobenzol,    wird in 5 Teilen     Pyridin     suspendiert und bei 400 mit 0,8 Teilen     Ben-          zoylchlorid    versetzt. Man erwärmt allmählich    auf 90   und hält diese Temperatur     1'/2    Stunden.  Nach dieser Zeit wird das     Dibenzoylprodukt     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 if 1 mole of the disazo dye, which is obtained by combining one molecule of aminobenzene with 1 mole of the dianotated monoazo dye from dianotated 2-aminonaphthalene-4,8-disulfonic acid and aminobenzene,

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



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



  <I> Example: </I> 1 part of the disazo dye, which is obtained by combining aminobenzene with the dianotized monoazo dye from diano-tated 2-aminonaphtholcaline-4.8-disulfonic acid and aminobenzene, is suspended in 5 parts of pyridine and added at 400 with 0.8 parts of benzoyl chloride were added. The temperature is gradually increased to 90 and this temperature is maintained for 1/2 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 141o1 des Disazofarb- stoffes, der erhalten wird durch Vereinigen eines Moleküls Aminobenzol mit 1 Mol des dianotierten 'Honoazofarbstoffes aus dianotier ter 2-Aminonaphthalin-4.8-disulfonsäure und Aminobenzol, Claim: A process for the preparation of a new derivative of an azo dye, characterized in that 1 141o1 of the disazo dye, which is obtained by combining a molecule of aminobenzene with 1 mole of the dianotized 'honoazo dye from dianotier ter 2-aminonaphthalene-4,8-disulfonic acid and Aminobenzene, mit 2 Mol Benzoylchlorid in Gegenwart einer tertiären Base acyliert. Der neue Farbstoff stellt ein braunes Pulver dar und färbt Baumwolle in echten rotgelben Tönen. GESELLSCHAFT FÜR CHEMISCHE INDUSTRIE IN BASEL. 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-yellow tones. SOCIETY FOR CHEMICAL INDUSTRY IN BASEL.
CH209547D 1937-01-26 1937-01-26 Process for the preparation of a new derivative of an azo dye. CH209547A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH209547T 1937-01-26
CH205164T 1939-02-01

Publications (1)

Publication Number Publication Date
CH209547A true CH209547A (en) 1940-04-15

Family

ID=25724134

Family Applications (1)

Application Number Title Priority Date Filing Date
CH209547D CH209547A (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) CH209547A (en)

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