CH133098A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH133098A
CH133098A CH133098DA CH133098A CH 133098 A CH133098 A CH 133098A CH 133098D A CH133098D A CH 133098DA CH 133098 A CH133098 A CH 133098A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
acid
red
new
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 CH133098A publication Critical patent/CH133098A/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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium
    • 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

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

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       nachchromierbaren        Azofarbstoff    erhält, wenn  man dianotierte     4-Chlor-2-amino-l-phenol-6-          sulfosäure    mit der     5-Pyrazolon-3-carbonsäure;     welche durch Kondensation von     Oxalessig-          ester    und     Hydrazin    und     nachheriges    Ver  seifen entsteht, kuppelt. Der neue     Farbstoff     bildet trocken ein dunkelrotbraunes Pulver.

    Er löst sich in Wasser und in verdünnten       Alkalien    mit     orangebrauner,    in konzentrierter  Schwefelsäure mit roter Farbe und färbt  Wolle aus saurem Bade in orangen Tönen,  welche beim     Nachchromieren    blaustichig rot  und echt,     insbesondere    lichtecht werden.    <I>Beispiel:</I>    22,3 Teile     4-Chlor-2-anrinopherrol-6-sulfo-          säure    werden wie üblich dianotiert und in       sodaalkalischer        Lösung    mit 12,8 Teilen     5-          Pyrazolon-3-carbonsäure    gekuppelt.

   Der ge-    bildete Farbstoff wird     ausgesalzen,        abgenutscht     und getrocknet.



  Process for the production of a new azo dye. It has been found that a new post-chromable azo dye is obtained if dianotated 4-chloro-2-amino-1-phenol-6-sulfonic acid is used with 5-pyrazolone-3-carboxylic acid; which is formed by the condensation of oxaloacetate and hydrazine and subsequent saponification, couples. The new dye forms a dark red-brown powder when dry.

    It dissolves in water and in dilute alkalis with an orange-brown color, in concentrated sulfuric acid with a red color and dyes wool from acid baths in orange tones, which become bluish red and real, especially lightfast, when they are chromed. <I> Example: </I> 22.3 parts of 4-chloro-2-anrinopherrole-6-sulfonic acid are dianotized as usual and coupled with 12.8 parts of 5-pyrazolone-3-carboxylic acid in a soda-alkaline solution.

   The dye formed is salted out, filtered off with suction and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man dianotierte 4-Chlor-2-amino-l-phenol-6- sulfosäure mit der 5-Pyrazolon-3-carbonsärrre, welche durch Kondensation von Oxalessig- ester und Hydrazin und nachheriges Ver seifen entsteht, kuppelt. Der neue Farbstoff bildet trocken ein dunkelrotbraunes Pulver. PATENT CLAIM: Process for the production of a new azo dye, characterized in that dianotated 4-chloro-2-amino-1-phenol-6-sulfonic acid with the 5-pyrazolone-3-carboxylic acid, which is obtained by condensation of oxaloacetic ester and hydrazine and subsequent soaping occurs, couples. The new dye forms a dark red-brown powder when dry. Er löst sich in Wasser und in verdünnten Alkalien mit orangebrauner, in konzentrierter Schwefelsäure mit roter Farbe und färbt Wolle aus saurem Bade in orangen Tönen, welche beim Nacbchromieren blaustichig rot und echt, insbesondere lichtecht werden. It dissolves in water and in dilute alkalis with an orange-brown color, in concentrated sulfuric acid with a red color and dyes wool from acid baths in orange tones, which when chromium-plating become bluish red and real, especially lightfast.
CH133098D 1927-07-26 1927-07-26 Process for the production of a new azo dye. CH133098A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH133098T 1927-07-26
CH130425T 1927-07-26

Publications (1)

Publication Number Publication Date
CH133098A true CH133098A (en) 1929-05-15

Family

ID=25711443

Family Applications (1)

Application Number Title Priority Date Filing Date
CH133098D CH133098A (en) 1927-07-26 1927-07-26 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH133098A (en)

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