CH270539A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

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Publication number
CH270539A
CH270539A CH270539DA CH270539A CH 270539 A CH270539 A CH 270539A CH 270539D A CH270539D A CH 270539DA CH 270539 A CH270539 A CH 270539A
Authority
CH
Switzerland
Prior art keywords
yellow
dye
acid
methylanilide
monoazo dye
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Publication of CH270539A publication Critical patent/CH270539A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00Monoazo dyes prepared by diazotising and coupling
    • C09B29/34Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
    • C09B29/3604Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
    • C09B29/3647Monoazo 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
    • C09B29/3652Monoazo 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
    • C09B29/366Monoazo 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
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00Complex metal compounds of azo dyes
    • C09B45/02Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14Monoazo compounds
    • C09B45/16Monoazo compounds containing chromium

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  verfahren zur Herstellung eines     Monoazofarbstoffes.       Es wurde gefunden, dass man zu einem  wertvollen     Monoazofarbstoff    gelangt, wenn  man dianotierte     2-Aminobenzol-5-sulfonsäure-          N-methylanilid-l-earbonsäure    mit     1-(3'-Su@f-          amido)        -phenyl-3-methy        1-5-py        razolon    vereinigt.  



  Der neue Farbstoff stellt in trockenem Zu  stand eine orangegelbe Substanz dar, die sich  in heissem Wasser und heisser     Natriumcarbo-          natlösung    mit gelber Farbe löst und Wolle aus  saurem Bade in gelben Tönen färbt, die beim       Nachchromieren        braunstichig    gelb und sehr  gut wasch-, walk- und lichtecht werden. Der  Farbstoff eignet sich auch hervorragend zum  Färben nach dem     Einbadchromierverfahren.     



  Die beim vorliegenden Verfahren als Aus  gangsstoff dienende     2-Aminobenzol-5-sulfon-          säure-N-methylanilid-l-carbonsäure    kann nach  üblichen, an sich bekannten Methoden herge  stellt werden, z. B. indem man     2-Chlorbenzol-          5-sulfonsäurechlorid-l-carbonsäure    mit     N-Me-          thylanilin    umsetzt und in der erhaltenen       2-Chlorbenzol-5-sulfonsäure-N-methylanilid-l-          earbonsäure        das    Chloratom durch die     -NH.>-          Gruppe    ersetzt.  



  Die     Dianotierung    der     2-Amino-5-sulfon-          säure-N-methylanilid-l-carbonsäure    kann eben  falls nach an sich bekannten Methoden erfol  gen, mit Vorteil nach der sogenannten indirek  ten Methode, das heisst dadurch, dass man eine  Lösung, die ein     Alkalisalz    der     Diazotierungs-          komponente    sowie die erforderliche Menge Ni  trit enthält, mit einer einen     überschuss    über  die theoretisch benötigte Menge Säure enthal  tenden verdünnten     Salzsäurelösung    vereinigt.    Die Kupplung wird beim vorliegenden  Verfahren mit Vorteil in alkalischem Medium  durchgeführt.

   Hierbei kann man zum Beispiel  so vorgehen, dass man das     1-(3'-Sulfamido)-          phenyl-3-methyl-5-pyrazolon    mit der erforder  lichen Menge     Alkalihydroxyd    löst     und    den für  die Kupplung benötigten     Alkaliüberschuss    in  Form eines     Alkalicarbonates    hinzufügt. Ge  gebenenfalls kann die Kupplung auch unter  Zusatz neutraler oder basischer Lösungsmit  tel, wie z. B. Alkohol,     Pyridin,        Äthanolamin     usw., erfolgen.  



  <I>Beispiel:</I>  30,6 Teile     2-Aminobenzol-5-sulfonsäure-N-          methylanilid-l-carbonsäure    werden in 300 Tei  len     Z%l'asser    unter Zusatz von 8 Teilen wasser  freiem     Natriumcarbonat    gelöst. Nachdem man  7 Teile     Natriumnitrit    hinzugefügt hat, lässt  man diese Lösung zu einem aus 40     Teilen     30     o/oiger    Salzsäure und so viel Eis bestehen  den Gemisch zufliessen, dass während der Di  anotierung die Reaktionstemperatur etwa 10  bis 150     beträgt,    und rührt bis zur     Beendigung     der Dianotierung.

   Die Suspension der     Diazo-          verbindung    wird mit einer Lösung von 25,3  Teilen     1-(3'-Sulfamido)-phenyl-3-methyl-5-          pyrazolon    in 200 Teilen Wasser, 6 Teilen Na  triumhydroxyd und 25 Teilen wasserfreiem       Natriumcarbonat    bei 5 bis<B>100</B> vereinigt. Man  rührt bis zur Beendigung der Kupplung und  filtriert den Farbstoff ab. Er kann zur wei  teren Reinigung nochmals in Wasser verrührt  und wieder     abfiltriert    werden.



  process for the production of a monoazo dye. It has been found that a valuable monoazo dye is obtained if dianotated 2-aminobenzene-5-sulfonic acid-N-methylanilide-1-carboxylic acid is mixed with 1- (3'-Su @ f-amido) -phenyl-3-methyl -5-py razolon combined.



  When dry, the new dye is an orange-yellow substance that dissolves in hot water and a hot sodium carbonate solution with a yellow color and dyes wool from acid baths in yellow tones, which are brownish-yellow when they are chrome-plated and are very easy to wash, whip. and become lightfast. The dye is also ideal for dyeing using the single-bath chrome plating process.



  The 2-aminobenzene-5-sulfonic acid N-methylanilide-1-carboxylic acid used as starting material in the present process can be Herge according to conventional methods known per se, for B. by reacting 2-chlorobenzene-5-sulfonic acid chloride-1-carboxylic acid with N-methylaniline and in the resulting 2-chlorobenzene-5-sulfonic acid-N-methylanilide-1-carboxylic acid the chlorine atom through the -NH.> - Group replaced.



  The dianotation of the 2-amino-5-sulfonic acid-N-methylanilide-1-carboxylic acid can also take place according to methods known per se, advantageously according to the so-called indirect method, that is to say that a solution which contains an alkali salt of the diazotization component and the required amount of Ni trite, combined with a dilute hydrochloric acid solution containing an excess of the theoretically required amount of acid. In the present process, the coupling is advantageously carried out in an alkaline medium.

   One can proceed, for example, that the 1- (3'-sulfamido) - phenyl-3-methyl-5-pyrazolone is dissolved with the required amount of alkali metal hydroxide and the excess alkali required for the coupling is added in the form of an alkali metal carbonate. Ge optionally the coupling can tel with the addition of neutral or basic solvents, such as. B. alcohol, pyridine, ethanolamine, etc., take place.



  <I> Example: </I> 30.6 parts of 2-aminobenzene-5-sulfonic acid-N-methylanilide-1-carboxylic acid are dissolved in 300 parts of water with the addition of 8 parts of anhydrous sodium carbonate. After 7 parts of sodium nitrite have been added, this solution is allowed to flow into a mixture consisting of 40 parts of 30% hydrochloric acid and enough ice that the reaction temperature is about 10 to 150 during the di-anotation, and the mixture is stirred until the end Dianotation.

   The suspension of the diazo compound is trium hydroxide with a solution of 25.3 parts of 1- (3'-sulfamido) -phenyl-3-methyl-5-pyrazolone in 200 parts of sodium hydroxide and 25 parts of anhydrous sodium carbonate at 5 to <B> 100 </B> united. The mixture is stirred until the coupling has ended and the dye is filtered off. For further purification, it can be stirred again in water and filtered off again.

 

Claims (1)

PATENTANSPRUCTi Verfahren zur Herstellung eines Monoazo- farbstoffes, dadurch gekennzeichnet, dass man diazotierte 2-Aminobenzol-5-sulfonsäure-N-me- thylanilid-l-carbonsäure mit 1-(3'-Sulfamido)- phenyl-3-methyl-5-pyrazolon vereinigt. PATENTED A process for the production of a monoazo dye, characterized in that diazotized 2-aminobenzene-5-sulfonic acid-N-methylanilide-1-carboxylic acid with 1- (3'-sulfamido) - phenyl-3-methyl-5- pyrazolone combined. Der neue Farbstoff stellt in trockenem Zu stand eine orangegelbe Substanz dar, die sich in heissem Wasser und heisser Natriumcarbo- natlösung mit gelber Farbe löst und Wolle aus saurem Bade in gelben Tönen färbt, die beim Nachchromieren braunstichig gelb und sehr gut wasch-, walk- und lichtecht werden. Der Farbstoff eignet sich auch hervorragend zum Färben nach dem Einbadchromierverfahren. When dry, the new dye is an orange-yellow substance that dissolves in hot water and a hot sodium carbonate solution with a yellow color and dyes wool from acid baths in yellow tones, which are brownish-yellow when they are chromed and are very easy to wash, mill and become lightfast. The dye is also ideal for dyeing using the single-bath chrome plating process.
CH270539D 1948-12-13 1948-02-12 Process for the preparation of a monoazo dye. CH270539A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH270539T 1948-12-13

Publications (1)

Publication Number Publication Date
CH270539A true CH270539A (en) 1950-09-15

Family

ID=4477792

Family Applications (1)

Application Number Title Priority Date Filing Date
CH270539D CH270539A (en) 1948-12-13 1948-02-12 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH270539A (en)

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