CH209554A - 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
CH209554A
CH209554A CH209554DA CH209554A CH 209554 A CH209554 A CH 209554A CH 209554D A CH209554D A CH 209554DA CH 209554 A CH209554 A CH 209554A
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 CH209554A publication Critical patent/CH209554A/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

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 205164.    Verfahren zur Herstellung eines neuen Derivates eines     Azofarbstof'fes.       Es wurde gefunden, dass man ein neues  Derivat eines     Azofarbstoffes    erhält, wenn man  1     Mol    des     Monoazofarbstoffes,    der erhalten  wird durch Vereinigen eines Moleküls des     1,3-          Diaminobenzols    mit 1     Mol    der dianotierten  2-     Aminonaphthalin-4,8-disulfonsäure    mit 2       Mol        p-Nitrobenzoylchlorid    in Gegenwart einer  tertiären Base     acyliert.     



  Der neue     Farbstoff    stellt ein braunes Pul  ver dar und färbt Wolle in echten gelben  Tönen.  



       Beispiel:     1 Teil des     Monoazofarbstoffes,    der erhalten  wird durch Vereinigen von     1,3-Diaminobenzol     mit der dianotierten     2-Amirionaphthalin-4,8-          disulfonsäure,    wird in 6 Teilen     Pyridin    sus  pendiert und bei 40   mit 2,6 Teilen     p-Nitro-          benzoylchlorid    versetzt. Man erwärmt allmäh-    lieh auf 90   und hält diese Temperatur<B>1</B>1/2  Stunden. Nach dieser Zeit wird das Konden  sationsprodukt abgeschieden und getrocknet.



  <B> Additional patent </B> 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 when 1 mole of the monoazo dye obtained by combining one molecule of 1,3-diaminobenzene with 1 mole of dianotated 2-aminonaphthalene-4,8-disulfonic acid with 2 moles acylated p-nitrobenzoyl chloride in the presence of a tertiary base.



  The new dye is a brown powder and dyes wool in real yellow tones.



       Example: 1 part of the monoazo dye, which is obtained by combining 1,3-diaminobenzene with the dianotized 2-amirionaphthalene-4,8-disulfonic acid, is suspended in 6 parts of pyridine and at 40 with 2.6 parts of p-nitro- benzoyl chloride added. The mixture is gradually heated to 90 and this temperature is maintained for 1 1/2 hours. After this time, the condensation product is separated out and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Derivates eines Azofarbstoffes, dadurch ge kennzeichnet, dass man 1 Mol des Monoazo- farbstoffes, der erhalten wird durch Vereinigen eines Moleküls des 1,3-Diaminobenzols mit 1 Mol der dianotierten 2-Amirionaphthalin-4,8- disulfonsäure, Claim: A process for the preparation of a new derivative of an azo dye, characterized in that 1 mol of the monoazo dye, which is obtained by combining one molecule of 1,3-diaminobenzene with 1 mol of the dianotated 2-amirionaphthalene-4,8- disulfonic acid, mit 2 Mol p-Nitrobenzoylchlo- rid in Gegenwart einer tertiären Base acy- liert. Der neue Farbstoff stellt ein braunes Pul ver dar und färbt Wolle in echten gelben Tönen. acylated with 2 moles of p-nitrobenzoyl chloride in the presence of a tertiary base. The new dye is a brown powder and dyes wool in real yellow tones.
CH209554D 1937-01-26 1937-01-26 Process for the preparation of a new derivative of an azo dye. CH209554A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH209554T 1937-01-26
CH205164T 1939-02-01

Publications (1)

Publication Number Publication Date
CH209554A true CH209554A (en) 1940-04-15

Family

ID=25724141

Family Applications (1)

Application Number Title Priority Date Filing Date
CH209554D CH209554A (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) CH209554A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040024A (en) * 1957-03-07 1962-06-19 Ciba Ltd Azo-dyestuffs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040024A (en) * 1957-03-07 1962-06-19 Ciba Ltd Azo-dyestuffs

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