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CH214806A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH214806A
CH214806A CH214806DA CH214806A CH 214806 A CH214806 A CH 214806A CH 214806D A CH214806D A CH 214806DA CH 214806 A CH214806 A CH 214806A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
dye
aminobenzene
pyrazolone
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 CH214806A publication Critical patent/CH214806A/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)
  • Paper (AREA)

Description

  

  Verfahren zur Herstellung eines     Azofarbstoffes.       Es wurde     gefunden,    dass man einen wert  vollen     Azofarbstoff    erhält, wenn man die       Diazoverbindung    des     1-Aminobenzol-4-ss-oxy-          äthylsulfon    mit     1-(2'-Chlorphenyl)-3-methyl-          5-pyrazolon    vereinigt. Der so erhaltene Farb  stoff bildet ein gelbes Pulver, das sich in       Acetyl-    und     Nitrocelluloselack    mit gelber  Farbe löst.  



  <I>Beispiel:</I>  20,1 Teile     1-Aminobenzol-4-,,3-oxyäthyl-          sulfon    werden in     salzsaurer    Lösung wie üblich  dianotiert. Die     Diazoverbindung    lässt man in  eine     Natriumacetat    enthaltende Lösung von  20,8 Teilen     1-(2'-Chlorphenyl)-3-methyl-5-pyr-          azolon    in der äquivalenten Menge Natrium  hydroxyd     zulaufen.    Nach beendeter Kupplung    wird der     Farbstoff        filtriert,

      gewaschen und       getrocknet.    Er löst sich in     Acetyl-    und     Nitro-          celluloselack    und gibt gelbe Färbungen von  sehr guter Lichtechtheit.



  Process for the preparation of an azo dye. It has been found that a valuable azo dye is obtained if the diazo compound of 1-aminobenzene-4-ss-oxyethylsulfone is combined with 1- (2'-chlorophenyl) -3-methyl-5-pyrazolone. The dye obtained in this way forms a yellow powder that dissolves in acetyl and nitrocellulose lacquer with a yellow color.



  <I> Example: </I> 20.1 parts of 1-aminobenzene-4 - ,, 3-oxyethylsulfone are dianotized as usual in a hydrochloric acid solution. The diazo compound is allowed to run into a sodium acetate-containing solution of 20.8 parts of 1- (2'-chlorophenyl) -3-methyl-5-pyrazolone in the equivalent amount of sodium hydroxide. After the coupling has ended, the dye is filtered,

      washed and dried. It dissolves in acetyl and nitrocellulose lacquer and gives yellow colorations of very good lightfastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines wertvollen Azofarbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung des 1-Aminobenzol- 4-@-oxyäthylsulfons mit 1-(2'-Chlorphenyl)-3- methyl-5-pyrazolon vereilzigt. Der so erhaltene Farbstoff bildet ein gelbes Pulver, das sich in Acetyl- und Nitrocelluloselack mit gelber Farbe löst. PATENT CLAIM: Process for the production of a valuable azo dye, characterized in that the diazo compound of 1-aminobenzene-4 - @ - oxyäthylsulfons with 1- (2'-chlorophenyl) -3-methyl-5-pyrazolone is included. The dye thus obtained forms a yellow powder which dissolves in acetyl and nitrocellulose lacquer with a yellow color.
CH214806D 1939-05-11 1939-05-11 Process for the preparation of an azo dye. CH214806A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH211662T 1939-05-11
CH214806T 1939-05-11

Publications (1)

Publication Number Publication Date
CH214806A true CH214806A (en) 1941-05-15

Family

ID=25725088

Family Applications (1)

Application Number Title Priority Date Filing Date
CH214806D CH214806A (en) 1939-05-11 1939-05-11 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH214806A (en)

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