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CH212800A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH212800A
CH212800A CH212800DA CH212800A CH 212800 A CH212800 A CH 212800A CH 212800D A CH212800D A CH 212800DA CH 212800 A CH212800 A CH 212800A
Authority
CH
Switzerland
Prior art keywords
preparation
monoazo dye
dye
aminobenzene
piperidine
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 CH212800A publication Critical patent/CH212800A/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)
  • Pyridine Compounds (AREA)

Description

  

  Verfahren zur Herstellung eines     Monoazofarbstof%s.       Gegenstand des vorliegenden Zusatz  patentes ist ein Verfahren zur Herstellung  eines     Monoazofarbstoffes,    welches dadurch  gekennzeichnet ist,     dass    man die     Diazover-          bindung    von     1-Aminobenzol-4-(oarboyl-N-pi-          peridin)    mit     1-Phenyl-3-methyl-5-pyrazolon     kuppelt.  



  <I>Beispiel:</I>  10,2 g     1-Aminobenzol-4-(carboyl-N-pi-          peridin)    werden in der üblichen Weise     diazo-          tiert.    Hierauf versetzt man die     Diazolösung     zur Bindung der überschüssigen Mineral  säure 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 verdünnter Na  tronlauge und Fällen mit Essigsäure erhält.

    Nach     Beendigung    der Kupplung wird der  entstandene Farbstoff     abfiltriert,    gut     aus-          (T    und getrocknet.-    Er stellt ein gelbes Pulver dar, das sich  in     Xylol,    Aceton und andern organischen  Lösungsmitteln leicht löst und     Celluoseester-          lacke    in sehr lebhaften gelben Tönen von  guter Lichtechtheit färbt.



  Process for the preparation of a monoazo dye% s. 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-aminobenzene-4- (oarboyl-N-piperidine) with 1-phenyl-3-methyl-5 -pyrazolon couples.



  <I> Example: </I> 10.2 g of 1-aminobenzene-4- (carboyl-N-piperidine) 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 cases obtained with acetic acid.

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

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Mono azofarbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung von 1-Aminoben- zol-4-(carboyl-N-piperidin) 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 lebhaften gelben Tönen von guter Lichtechtheit färbt. PATENT CLAIM: Process for the production of a mono azo dye, characterized in that the diazo compound of 1-aminobenzene-4- (carboyl-N-piperidine) 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 lacquers in very vivid yellow shades of good lightfastness.
CH212800D 1938-02-02 1939-01-16 Process for the preparation of a monoazo dye. CH212800A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE212800X 1938-02-02
CH210605T 1939-01-16

Publications (1)

Publication Number Publication Date
CH212800A true CH212800A (en) 1940-12-15

Family

ID=25724922

Family Applications (1)

Application Number Title Priority Date Filing Date
CH212800D CH212800A (en) 1938-02-02 1939-01-16 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH212800A (en)

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