CH215580A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH215580A
CH215580A CH215580DA CH215580A CH 215580 A CH215580 A CH 215580A CH 215580D A CH215580D A CH 215580DA CH 215580 A CH215580 A CH 215580A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
aminobenzene
pyrazolone
dichlorophenyl
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 CH215580A publication Critical patent/CH215580A/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     Nonoazofarbstoffes.       Gegenstand des vorliegenden Zusatz  patentes ist ein Verfahren zur Herstellung  eines     Monoazofarbstoffes,    welches dadurch       gekennzeichnet    ist, dass man die     Diazoverbin-          dung    von     1-Aminobenzol-2-(sulfonyl-diäthyl-          amin)    mit     1-(2',5'-Dichlorphenyl)-3-methyl-          5-pyrazolon    kuppelt.

      Er stellt ein gelbes Pulver dar, das sich  in Aceton,     Butylacetat    und andern organi  schen     Lösungsmitteln    leicht     mit    gelber Farbe  löst     und        Celluloseesterlacke    in lebhaften     und     echten gelben Tönen färbt.



  Process for the preparation of a nonoazo 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-aminobenzene-2- (sulfonyl-diethylamine) with 1- (2 ', 5'-dichlorophenyl) -3-methyl-5-pyrazolone couples.

      It is a yellow powder that easily dissolves in acetone, butyl acetate and other organic solvents with a yellow color and colors cellulose ester coatings in vivid and genuine yellow tones.

Claims (1)

PATENTANSPRUCH: <I>Beispiel:</I> 11,4 Gewichtsteile 1-Aminobenzol-2-(sul- f onyl-diäthylamin) werden in der üblichen Weise diazotiert. Hierauf versetzt man die Diazolösung zur Bindung der überschüssigen Mineralsäure mit Natriumacetat und rührt s sie in eine wässrige Suspension von 12,2 Ge wichtsteilen 1- (2',5' -Dichlorphenyl) - 3-me- thyl-5-pyrazolon ein, PATENT CLAIM: <I> Example: </I> 11.4 parts by weight of 1-aminobenzene-2- (sulphonyl-diethylamine) 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 12.2 parts by weight of 1- (2 ', 5' -dichlorophenyl) -3-methyl-5-pyrazolone, die man durch Lösen dieser Verbindung in verdünnter Natron lauge und Fällen mit Essigsäure erhält. Nach Beendigung der Kupplung wird der entstandene Farbstoff abfiltriert, gut aus gewaschen und getrocknet. Verfahren zur Herstellung eines Mono- azofarbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung von 1-Amino- benzol-2-(sulfonyl-diäthylamin) mit 1-(2',5' Dichlorphenyl)-3-methyl-5-pyrazolonkuppelt. obtained by dissolving this compound in dilute sodium hydroxide solution and precipitating with acetic acid. After the coupling has ended, the resulting dye is filtered off, washed thoroughly and dried. Process for the preparation of a monoazo dye, characterized in that the diazo compound of 1-aminobenzene-2- (sulfonyl-diethylamine) is coupled with 1- (2 ', 5' dichlorophenyl) -3-methyl-5-pyrazolone. Der erhaltene Farbstoff stellt ein gelbes Pulver dar, das sich in Aceton, Butylacetat und andern organischen Lösungsmitteln leicht mit gelber Farbe löst und Cellulose- esterlacke in lebhaften und echten gelben Tönen färbt. The dye obtained is a yellow powder which dissolves easily with a yellow color in acetone, butyl acetate and other organic solvents and colors cellulose ester paints in vivid and genuine yellow tones.
CH215580D 1938-06-04 1939-05-17 Process for the preparation of a monoazo dye. CH215580A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE215580X 1938-06-04
CH212644T 1939-05-17

Publications (1)

Publication Number Publication Date
CH215580A true CH215580A (en) 1941-06-30

Family

ID=25725289

Family Applications (1)

Application Number Title Priority Date Filing Date
CH215580D CH215580A (en) 1938-06-04 1939-05-17 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH215580A (en)

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