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CH212799A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH212799A
CH212799A CH212799DA CH212799A CH 212799 A CH212799 A CH 212799A CH 212799D A CH212799D A CH 212799DA CH 212799 A CH212799 A CH 212799A
Authority
CH
Switzerland
Prior art keywords
preparation
monoazo dye
dye
methogybenzene
dibutylamine
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH212799A publication Critical patent/CH212799A/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)

Description

  

  Verfahren zur Herstellung eines     blonoazofarbstoffes.       Gegenstand des vorliegenden Zusatz  patentes ist ein Verfahren zur Herstellung  eines     Monoazofarbstoffes,    welches dadurch  gekennzeichnet ist, dass man die     Diazover-          bindung    von 1-     Amino    - 4 -     methogybenzol    -     5-          (sulfonyl-n-dibutylamin)    mit     1-Phenyl-3-me-          thyl-5-pyrazolon    kuppelt.

      <I>Beispiel:</I>    15,7 g     1.-Amino-4-methogybenzol-5-(sul-          fonyl-n-dibutylamin)    werden in der üblichen  Weise     diazotiert.    Hierauf versetzt man die       Diazolösung    zur Bindung der überschüssi  gen Mineralsäure mit     Natriumacetat    und  rührt sie in eine     wässrige    Suspension von  8,7 g     1-Phenyl-3-methyl-5-pyrazolon    ein, die  man durch Lösen dieser Verbindung in ver  dünnter Natronlauge und Fällen mit Essig  säure erhält.

   Nach Beendigung der Kupp  lung     wird    der entstandene Farbstoff     abfil-          triert,    gut ausgewaschen und getrocknet.    Er stellt ein gelbes Pulver dar, das sich  in     Xylol,    Aceton und andern organischen  Lösungsmitteln leicht löst und     Celluloseester-          lacke    in sehr lebhaften     gelben        Tönen    von  guter Lichtechtheit färbt.



  Process for the preparation of a blonoazo dye. The subject of the present additional patent is a process for the production of a monoazo dye, which is characterized in that the diazo compound of 1- amino - 4 - methogybenzene - 5- (sulfonyl-n-dibutylamine) with 1-phenyl-3-me - thyl-5-pyrazolone coupling.

      <I> Example: </I> 15.7 g of 1.-amino-4-methogybenzene-5- (sulfonyl-n-dibutylamine) are diazotized in the usual way. Sodium acetate is then added to the diazo solution to bind the excess mineral acid and it is stirred into an aqueous suspension of 8.7 g of 1-phenyl-3-methyl-5-pyrazolone, which is obtained by dissolving this compound in dilute sodium hydroxide solution and precipitates with acetic acid.

   After the coupling has ended, the resulting dye is filtered off, washed well and dried. It is a yellow powder that dissolves easily in xylene, acetone and other organic solvents and colors cellulose ester lacquers in very vivid yellow shades of good lightfastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Mono azofarbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung von 1-Amino-4- methogybenzol - 5 # (sulf onyl - n - dibutylamin) mit 1-Phenyl-3-methyl-5-pyrazolon kuppelt. Der erhaltene Farbstoff stellt ein gelbes Pulver dar, das sich in Xylol, Aceton und andern organischen Lösungsmitteln leicht löst und Celluloseesterlacke in sehr lebhaf ten gelben Tönen von guter Lichtechtheit färbt. Claim: Process for the production of a mono azo dye, characterized in that the diazo compound of 1-amino-4-methogybenzene - 5 # (sulf onyl - n - dibutylamine) is coupled with 1-phenyl-3-methyl-5-pyrazolone. The dye obtained is a yellow powder which dissolves easily in xylene, acetone and other organic solvents and colors cellulose ester coatings in very vivid yellow shades of good lightfastness.
CH212799D 1938-02-02 1939-01-16 Process for the preparation of a monoazo dye. CH212799A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE212799X 1938-02-02
CH210605T 1939-01-16

Publications (1)

Publication Number Publication Date
CH212799A true CH212799A (en) 1940-12-15

Family

ID=25724921

Family Applications (1)

Application Number Title Priority Date Filing Date
CH212799D CH212799A (en) 1938-02-02 1939-01-16 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH212799A (en)

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