CH205801A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH205801A
CH205801A CH205801DA CH205801A CH 205801 A CH205801 A CH 205801A CH 205801D A CH205801D A CH 205801DA CH 205801 A CH205801 A CH 205801A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
monoazo dye
acetylamino
diazotized
Prior art date
Application number
Other languages
German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH205801A publication Critical patent/CH205801A/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
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/16—Naphthol-sulfonic acids
    • 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     Honoazofarbstoffes.       Gegenstand des vorliegenden Zusatzpa  tentes ist ein Verfahren zur Herstellung eines       3knoazofarbstoffes,    dadurch gekennzeichnet,  dass man     2-Amino-l-phenoldodecyläther        dia-          zotiert    und mit     1-Acetylamino-8-oxynaphtha-          lin-3,6-disulfonsäure    kuppelt. Der so erhal  tene     Farbstoff    färbt Wolle und Seide aus  saurem und neutralem Bade in leuchtend  blauroten Tönen.  



  <I>Beispiel:</I>  31,4 Teile     2-Amirio-l-phenoldodecyläther-          chlorhydrat    werden mit 40 Teilen konzen  trierter Salzsäure während einer Stunde ver  rührt, mit 50 Teilen Eiswasser versetzt und  bei 5   mit einer konzentrierten     wässrigen     Lösung von 7 Teilen     Natriumnitrit        diazotiert.     Die     Diazoniumverbindung    lässt man zu einer         ammoniakalischen    Lösung von 36,1 Teilen       1-Acetylamino-        8-oxynaphthalin    -     3,6-disulfön-          säure    fliessen.

   Die Kupplung ist in kurzer  Zeit beendet. -Der     Farbstoff    wird     abfiltriert,     gepresst und getrocknet. Er bildet ein dunkel  rotes Pulver, das sich in Wasser blaurot,  in konzentrierter Schwefelsäure blauviolett  löst.



  Process for the preparation of a honoazo dye. The subject of the present additional patent is a process for the production of a 3knoazo dye, characterized in that 2-amino-1-phenol dodecyl ether is diazotized and coupled with 1-acetylamino-8-oxynaphthalin-3,6-disulfonic acid. The dye obtained in this way dyes wool and silk from acidic and neutral baths in bright blue-red tones.



  <I> Example: </I> 31.4 parts of 2-aminol-1-phenol dodecyl ether chlorohydrate are stirred with 40 parts of concentrated hydrochloric acid for one hour, mixed with 50 parts of ice water and at 5 with a concentrated aqueous solution of 7 Share sodium nitrite diazotized. The diazonium compound is allowed to flow into an ammoniacal solution of 36.1 parts of 1-acetylamino-8-oxynaphthalene-3,6-disulfonic acid.

   The coupling is completed in a short time. -The dye is filtered off, pressed and dried. It forms a dark red powder that dissolves blue-red in water and blue-violet in concentrated sulfuric acid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Mono azofarbstoffes, dadurch gekennzeichnet, dass man 2-Amino-l-phenoldodecyläther diazotiert und mit 1-Acetylamino-8-oxynaphtbalin-3,6- disulfonsäure kuppelt. Der so erhaltene Farb stoff färbt Wolle und Seide aus saurem und neutralem Bade in leuchtend blauroten Tönen. Claim: Process for the preparation of a mono azo dye, characterized in that 2-amino-1-phenol dodecyl ether is diazotized and coupled with 1-acetylamino-8-oxynaphthalene-3,6-disulfonic acid. The dye obtained in this way dyes wool and silk from acidic and neutral baths in bright blue-red tones.
CH205801D 1937-11-13 1937-11-13 Process for the preparation of a monoazo dye. CH205801A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH205801T 1937-11-13
CH201288T 1937-11-13

Publications (1)

Publication Number Publication Date
CH205801A true CH205801A (en) 1939-06-30

Family

ID=25723696

Family Applications (1)

Application Number Title Priority Date Filing Date
CH205801D CH205801A (en) 1937-11-13 1937-11-13 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH205801A (en)

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