CH119901A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH119901A
CH119901A CH119901DA CH119901A CH 119901 A CH119901 A CH 119901A CH 119901D A CH119901D A CH 119901DA CH 119901 A CH119901 A CH 119901A
Authority
CH
Switzerland
Prior art keywords
dye
orange
new dye
parts
production
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 CH119901A publication Critical patent/CH119901A/en

Links

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
    • 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

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen     Farbstoffes.       Es wurde gefunden, dass     man    einen  neuen Farbstoff erhält, wenn man das       o-Aminophenol        diazotiert,    hierauf mit     1-(3'-          Sulfamido)    -     pheny    1- 3 -     methyl    - 5 -     pyrazolon     kuppelt und den so erhaltenen Farbstoff  mit     Alkalichromiten    behandelt.

   Der neue       Farbstoff    bildet ein     orangebraunes    Pulver,  löst sich in Wasser und in verdünnter Natron  lauge mit oranger, in konzentrierter     Sehwe-          felsäure    mit gelber Farbe und färbt Wolle  aus saurem Bade in orangen Tönen mit vor  züglichen Eigenschaften.  



  <I>Beispiel</I>  10,9 Teile     o-Aminophenol    werden in üb  licher Weise mit 6,9 Teilen     Natriumnitrit          diazotiert.    Die     Diazolösung        lä,sst    man in eine  eiskalte Lösung von 25,3 Teilen     1-(3'-Sul-          famido)-phenyl-3-methyl-5-pyrazolon    und 30  Teilen Soda in 250 Teilen Wasser unter  Rühren einfliessen. Die     Reaktionsmasse    wird  nach vollendeter Kupplung auf<B>50'</B> ange  wärmt     und,der    Farbstoff mit Kochsalz aus  gesalzen und und wie üblich isoliert.

      39,9 Teile des so erhaltenen Farbstoffes  werden in eine kochende Lösung enthaltend  8,5 Teile     Cr203,    200 Teile Wasser, 28 Teile       Ätzkali    und 10 Teile Glyzerin eingetragen  und längere Zeit gekocht. Nach Verdünnen  mit 200 Teilen Wasser wird filtriert und der  neue Farbstoff aus dem Filtrat durch Neu  tralisieren und Aussahen isoliert.



  Process for the production of a new dye. It has been found that a new dye is obtained if the o-aminophenol is diazotized, then coupled with 1- (3'-sulfamido) -pheny 1-3-methyl-5-pyrazolone and the dye thus obtained is treated with alkali chromites.

   The new dye forms an orange-brown powder, dissolves in water and in dilute caustic soda with orange, in concentrated sulfuric acid with yellow color and dyes wool from acid baths in orange tones with excellent properties.



  <I> Example </I> 10.9 parts of o-aminophenol are diazotized in the usual way with 6.9 parts of sodium nitrite. The diazo solution is poured into an ice-cold solution of 25.3 parts of 1- (3'-sulphamido) -phenyl-3-methyl-5-pyrazolone and 30 parts of soda in 250 parts of water with stirring. After coupling is complete, the reaction mass is heated to <B> 50 '</B> and the dye is salted with common salt and isolated as usual.

      39.9 parts of the dye thus obtained are introduced into a boiling solution containing 8.5 parts of Cr 2 O 3, 200 parts of water, 28 parts of caustic potash and 10 parts of glycerol and boiled for a long time. After dilution with 200 parts of water, the mixture is filtered and the new dye is isolated from the filtrate by neutralizing and looking.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man das o-Aminophenol diazotiert, hierauf mit 1-(3'-Sulfamido)-phenyl - 3 - methyl - 5 - pyrazolon kuppelt und den so erhaltenen Farbstoff mit Alkalichromiten behandelt. Der neue Farbstoff bildet ein orangebraunes Pulver, löst sich in Wasser und in verdünn ter Natronlauge mit oranger, in konzentrier ter Schwefelsäure mit gelber Farbe und färbt Wolle aus- saurem Bade in orangen Tönen mit vorzüglichen Eigenschaften. PATENT CLAIM: Process for the preparation of a new dye, characterized in that the o-aminophenol is diazotized, then coupled with 1- (3'-sulfamido) phenyl - 3 - methyl - 5 - pyrazolone and the dye thus obtained is treated with alkali chromites. The new dye forms an orange-brown powder, dissolves in water and in dilute caustic soda with orange, in concentrated sulfuric acid with a yellow color and dyes wool from an acidic bath in orange shades with excellent properties.
CH119901D 1925-07-03 1925-07-03 Process for the production of a new dye. CH119901A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH117996T 1925-07-03
CH119901T 1925-07-03

Publications (1)

Publication Number Publication Date
CH119901A true CH119901A (en) 1927-04-16

Family

ID=25708935

Family Applications (1)

Application Number Title Priority Date Filing Date
CH119901D CH119901A (en) 1925-07-03 1925-07-03 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH119901A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673201A (en) * 1954-03-23 Cobaltiferous azo-dyestuffs
DE971896C (en) * 1951-08-13 1959-04-09 Ciba Geigy Process for the production of cobalt-containing azo dyes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673201A (en) * 1954-03-23 Cobaltiferous azo-dyestuffs
DE971896C (en) * 1951-08-13 1959-04-09 Ciba Geigy Process for the production of cobalt-containing azo dyes

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