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CH210498A - Process for the preparation of a water-soluble azo dye. - Google Patents

Process for the preparation of a water-soluble azo dye.

Info

Publication number
CH210498A
CH210498A CH210498DA CH210498A CH 210498 A CH210498 A CH 210498A CH 210498D A CH210498D A CH 210498DA CH 210498 A CH210498 A CH 210498A
Authority
CH
Switzerland
Prior art keywords
water
azo dye
soluble azo
preparation
sulfonic acid
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 CH210498A publication Critical patent/CH210498A/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
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols
    • C09B29/30—Amino naphtholsulfonic acid
    • 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     wasserlöslichen        Azofarbstoffes.       Gegenstand des vorliegenden Zusatzpa  tentes ist ein Verfahren zur Herstellung eines  wasserlöslichen     Azofarbstoffes,    welches da  durch gekennzeichnet ist, dass man die       Diazoverbindung    von     1-Amino-3-sulfonsäure-          diäthylamid-benzol-6-sulfonsäure    mit     1-(2'-          Chlor-6'-methylphenyl)-3-methyl-5-pyrazolon     kuppelt.  



  <I>Beispiel:</I>  Eine aus 308 Gewichtsteilen     1-Amino-3-          sulfonsäurediäthylamid        -benzol-    6     -sulfonsäure     und der äquivalenten Menge     Natriumcarbonat     erhaltene     wässrige    Lösung läuft nach Zugabe  der berechneten Menge     Natriumnitrit    in  250     Volumteile    Salzsäure von 20      B6,    die  mit Eiswasser verdünnt ist, ein.

   Die erhaltene       Diazosuspension    wird mit einer     sodaalka-          lischeu    Lösung von 222,5 Gewichtsteilen 1  (2'-Chlor-6'-methylphenyl)-3-methyl-5-pyr-         azolon    vereinigt. Nach beendeter Kupplung  wird der Farbstoff abgesaugt und getrocknet.  



  Er stellt ein gelbes, in Wasser leicht  lösliches Pulver dar, das sehr lichtechte gelbe  Färbungen auf Wolle liefert.



  Process for the preparation of a water-soluble azo dye. The subject of the present Zusatzpa tentes is a process for the production of a water-soluble azo dye, which is characterized because that the diazo compound of 1-amino-3-sulfonic acid diethylamide-benzene-6-sulfonic acid with 1- (2'-chloro-6 '-methylphenyl) -3-methyl-5-pyrazolone couples.



  <I> Example: </I> An aqueous solution obtained from 308 parts by weight of 1-amino-3-sulfonic acid diethylamide -benzene- 6-sulfonic acid and the equivalent amount of sodium carbonate runs after adding the calculated amount of sodium nitrite in 250 parts by volume of hydrochloric acid of 20 B6, the is diluted with ice water.

   The diazo suspension obtained is combined with a soda-alkali solution of 222.5 parts by weight of 1 (2'-chloro-6'-methylphenyl) -3-methyl-5-pyrazolone. After the coupling has ended, the dye is filtered off with suction and dried.



  It is a yellow powder which is easily soluble in water and which provides very lightfast yellow dyeing on wool.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines wasser löslichen Azofarbstoffes, dadurch gekenn zeichnet, dass man die Diazoverbindung von 1-Amino-3-sulfonsäurediäthylamid-benzol-6- sulfonsäure mit 1-(2'-Chlor-6'-methylphenyl)- 3-methyl-5-pyrazolon kuppelt. Der so erhaltene Farbstoff stellt ein gelbes, in Wasser leicht lösliches Pulver dar, das sehr lichtechte gelbe Färbungen auf Wolle liefert. Claim: Process for the production of a water-soluble azo dye, characterized in that the diazo compound of 1-amino-3-sulfonic acid diethylamide-benzene-6-sulfonic acid with 1- (2'-chloro-6'-methylphenyl) - 3-methyl -5-pyrazolone couples. The dye obtained in this way is a yellow powder which is readily soluble in water and which gives very lightfast yellow dyeings on wool.
CH210498D 1937-06-22 1938-06-13 Process for the preparation of a water-soluble azo dye. CH210498A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE210498X 1937-06-22
CH205532T 1938-06-13

Publications (1)

Publication Number Publication Date
CH210498A true CH210498A (en) 1940-07-15

Family

ID=25724190

Family Applications (1)

Application Number Title Priority Date Filing Date
CH210498D CH210498A (en) 1937-06-22 1938-06-13 Process for the preparation of a water-soluble azo dye.

Country Status (1)

Country Link
CH (1) CH210498A (en)

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