CH100479A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH100479A
CH100479A CH100479DA CH100479A CH 100479 A CH100479 A CH 100479A CH 100479D A CH100479D A CH 100479DA CH 100479 A CH100479 A CH 100479A
Authority
CH
Switzerland
Prior art keywords
azo dye
new azo
production
red
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 CH100479A publication Critical patent/CH100479A/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
    • C09B29/34—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden,     dass    man einen neuen       Azofarbstoff    herstellen kann, wenn man die       Diazoverbindung    der     1-Amino-2-oxynaphta-          lin-4-sulfosäure    mit     1-(3'-Sulfami@do)-phenyl-          3-methyl-5-pyrazolon    kuppelt. Der neue     Azo-          farbstoff    bildet ein ziegelrotes Pulver. Er  färbt Wolle in braunorangen Farbtönen,     wel-          clie    beim     Naühchromieren    blaurot werden.

    <I>Beispiel:</I>  272 Teile des     Natronsalzes    der     Diazover-          bindung    der     1-Amino-2-oxynaphtalin-4-sulfo-          säure    werden in eine abgekühlte Lösung von.  253 Teilen     1-(3'-Sulfamido)-phenyl-3-methyl-          5-pyrazolon    in 30     %-iger    Natronlauge einge  tragen. Nach zwölfstündigem Rühren wird  der Farbstoff durch schwaches Ansäuern    mit Mineralsäure aus der alkalischen Reak  tionsflüssigkeit ausgefällt und gegebenenfalls  aus Wasser     umkristallisiert.  



  Process for the production of a new azo dye. It has been found that a new azo dye can be produced if the diazo compound of 1-amino-2-oxynaphthalene-4-sulfonic acid is mixed with 1- (3'-sulfami @ do) -phenyl-3-methyl-5- pyrazolone couples. The new azo dye forms a brick-red powder. It dyes wool in brown-orange shades that turn blue-red when chromium-plating.

    <I> Example: </I> 272 parts of the sodium salt of the diazo compound of 1-amino-2-oxynaphthalene-4-sulfonic acid are poured into a cooled solution of. 253 parts of 1- (3'-sulfamido) -phenyl-3-methyl-5-pyrazolone in 30% sodium hydroxide solution are entered. After stirring for twelve hours, the dye is precipitated from the alkaline reaction liquid by weak acidification with mineral acid and, if necessary, recrystallized from water.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, -dadurch gekennzeichnet, dass man die Diazoverbindung der 1-Amino-2- oxynaphtalin-4-sulfosäure mit 1-(3'-Sulf- amido)-phenyl-3-methyl-5-pyrazolon kuppelt. Der neue Azofarbstoff bildet ein ziegelrotes Pulver. Er färbt- Wolle in braunorangen Farbtönen, welche beim Nachchromieren blaurot werden. Claim: Process for the preparation of a new azo dye, characterized in that the diazo compound of 1-amino-2-oxynaphthalene-4-sulfonic acid is mixed with 1- (3'-sulfamido) -phenyl-3-methyl-5-pyrazolone clutch. The new azo dye forms a brick-red powder. He dyes wool in brownish-orange shades, which turn blue-red when chromium-plating.
CH100479D 1922-11-11 1922-11-11 Process for the production of a new azo dye. CH100479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH100479T 1922-11-11

Publications (1)

Publication Number Publication Date
CH100479A true CH100479A (en) 1924-01-02

Family

ID=4358741

Family Applications (1)

Application Number Title Priority Date Filing Date
CH100479D CH100479A (en) 1922-11-11 1922-11-11 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH100479A (en)

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