CH251799A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH251799A
CH251799A CH251799DA CH251799A CH 251799 A CH251799 A CH 251799A CH 251799D A CH251799D A CH 251799DA CH 251799 A CH251799 A CH 251799A
Authority
CH
Switzerland
Prior art keywords
dye
azo dye
preparation
sulfonic acid
methyl
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Publication of CH251799A publication Critical patent/CH251799A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols
    • C09B29/30—Amino naphtholsulfonic acid
    • 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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
    • C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
    • C09B29/3647—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
    • C09B29/3652—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
    • C09B29/366—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone
    • 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
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/02—Disazo dyes
    • C09B31/04—Disazo dyes from a coupling component "C" containing a directive amino group
    • C09B31/053—Amino naphthalenes
    • C09B31/057—Amino naphthalenes containing acid groups, e.g. —CO2H, —SO3H, —PO3H2, —OSO3H, —OPO2H2; Salts thereof

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 244608.         Verfahren    zur Herstellung     eines        Azofarbstoffes.       Es wurde     gefunden,    dass man zu einem  neuen     Azofarbstoff    gelangt, wenn man den       diazotierten        Monoazofarbstoff    der Formel  
EMI0001.0009     
    mit     1-N-Phenyl-(4"-methyl-4'-phenogy)-          aminonaphthalin-8-sulfonoäure    kuppelt.  



  Der     neue    Farbstoff     bildet    ein dunkles       Pulver,    das sich in Wasser mit blauer Farbe  löst und Wolle aus schwach saurem Bade  in echten blauen Tönen färbt.  



  <I>Beispiel:</I>  Der     durch        Diazotieren    von 85 Teilen       1-Aminobenzol-8        sulfonsäure    und Kuppeln  mit 29 Teilen     1-Aminenaphthalin    erhältliche       Aminoazofarbstoff    wird wie üblich     diazo-          tiert.    Die     Diazoverbindung        wird    mit 200  Teilen Methylalkohol aasgeschlämmt und  unterhalb 0  C     in        eine    Lösung von 90 Teilen  1- N -     Phenyl    - (4"-methyl-4'-phenogy)

  -amino-         naphthalin-8-sulfonsäure    in 1000     Teilen     Methylalkohol     eingetragen.    Nach einigen       Stunden        wird    der gebildete Farbstoff     isoliert,          in        verdünnter        Natriumcarbonatlösung    gelöst  und     in    der Wärme mit     Natriumchloridlösung     gefällt, abgesaugt, mit     verdünnter        Natrium-          chlori.dlösung        gewaschen    und getrocknet.



      Additional patent to main patent No. 244608. Process for the production of an azo dye. It has been found that a new azo dye is obtained if the diazotized monoazo dye of the formula
EMI0001.0009
    with 1-N-phenyl- (4 "-methyl-4'-phenogy) - aminonaphthalene-8-sulfonic acid.



  The new dye forms a dark powder that dissolves in water with a blue color and dyes wool from weakly acidic baths in true blue tones.



  <I> Example: </I> The aminoazo dye obtainable by diazotizing 85 parts of 1-aminobenzene-8 sulfonic acid and coupling with 29 parts of 1-amine naphthalene is diazotized as usual. The diazo compound is slurried with 200 parts of methyl alcohol and below 0 C in a solution of 90 parts of 1- N - phenyl - (4 "-methyl-4'-phenogy)

  -amino- naphthalene-8-sulfonic acid entered in 1000 parts of methyl alcohol. After a few hours, the dye formed is isolated, dissolved in dilute sodium carbonate solution and precipitated with sodium chloride solution while warm, filtered off with suction, washed with dilute sodium chloride solution and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man den diazotierten Monoazofarbstoff der Formel EMI0001.0048 mit 1- N - Phenyl - (4" - methyl - 4' - phenogy) - aminonaphthalin-8-sulfönsäure kuppelt. Der neue Farbstoff bildet ein dunkles Pulver, das sich in Wasser mit blauer Farbe löst und Wolle aus schwach saurem Bade in echten blauen Tönen färbt. PATENT CLAIM: Process for the production of an azo dye, characterized in that the diazotized monoazo dye of the formula EMI0001.0048 with 1- N - phenyl - (4 "- methyl - 4 '- phenogy) - aminonaphthalene-8-sulfonic acid. The new dye forms a dark powder that dissolves in water with a blue color and wool from weakly acidic baths in real colors in blue tones.
CH251799D 1946-06-07 1946-06-07 Process for the preparation of an azo dye. CH251799A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH244603T 1946-06-07
CH251799T 1946-06-07

Publications (1)

Publication Number Publication Date
CH251799A true CH251799A (en) 1947-11-15

Family

ID=25728971

Family Applications (1)

Application Number Title Priority Date Filing Date
CH251799D CH251799A (en) 1946-06-07 1946-06-07 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH251799A (en)

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