CH205796A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH205796A
CH205796A CH205796DA CH205796A CH 205796 A CH205796 A CH 205796A CH 205796D A CH205796D A CH 205796DA CH 205796 A CH205796 A CH 205796A
Authority
CH
Switzerland
Prior art keywords
preparation
monoazo dye
dye
oxynaphthalene
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 CH205796A publication Critical patent/CH205796A/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     Monoazofarbstoffes.       Gegenstand des vorliegenden Zusatz  patentes ist ein Verfahren zur     Herstellung          eines        Monoa.zofarbstoffes,    dadurch     gekenn-          zeiehnet,    dass man     2-Amino-1-phenoloctyl-          äther        diazotiert    und. mit.     2-Phenylamino-8-          oxynaphthalin-6-sulfons,äure    kuppelt.

   Der so  erhaltene Farbstoff färbt Wolle     und    Seide  aus saurem und neutralem Bade     in        rots:tichig     braunen Tönen.  



  <I>Beispiel:</I>       22.,1    Teile     2-Amino-l-phenoloctyläther     werden in 100 Teilen Äthylalkohol 95ö und  35 Teilen     kouz.        ,Salzsäure    gelöst und bei<B>10'</B>       mit    einer     konzentrierten        wässrigen    Lösung  von 7 Teilen     Natriumnitrit        diazotiert.    Die       Diazoniumver        bindung    lässt man zu einer     soda     alkalischen Lösung von 31,5 Teilen 2-Phenyl-         amino-8-oxynaphthalin-6-sulfonsä.ure    fliessen.

    Die     Kupplung    ist     in    kurzer Zeit beendet. Der  Farbstoff wird     abfiltriert,    gepresst und ge  trocknet. Er bildet ein dunkles Pulver, das  sich     in    Wasser braunrot, in     konz.    Schwefel  säure violett löst.



  Process for the preparation of a monoazo dye. The subject of the present additional patent is a process for the production of a Monoa.zo dye, characterized in that 2-amino-1-phenol octyl ether is diazotized and. With. 2-Phenylamino-8-oxynaphthalene-6-sulfonic acid couples.

   The dye obtained in this way dyes wool and silk from acidic and neutral baths in shades of red: tinged brown.



  <I> Example: </I> 22., 1 part of 2-amino-1-phenol octyl ether is dissolved in 100 parts of ethyl alcohol 95ö and 35 parts of kouz. Dissolved hydrochloric acid and diazotized at <B> 10 '</B> with a concentrated aqueous solution of 7 parts of sodium nitrite. The diazonium compound is allowed to flow into an alkaline soda solution of 31.5 parts of 2-phenylamino-8-oxynaphthalene-6-sulfonic acid.

    The coupling is completed in a short time. The dye is filtered off, pressed and dried. It forms a dark powder that turns brownish-red in water, in conc. Sulfur acid dissolves violet.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Mono- azofarbstoffe:s, dadurch gekennzeichnet, dass man 2,-Amino-l-phenoloctyläther diazotiert und mit 2-Phenrylamino-8-oxynaphthalin-6- sulfonsäure kuppelt. Der so erhaltene Farb stoff färbt Wolle und .Seide aus saurem und neutralem Bade in rotstichig braunen Tönen. PATENT CLAIM: Process for the production of a monoazo dyestuff: s, characterized in that 2, -amino-1-phenol octyl ether is diazotized and coupled with 2-phenrylamino-8-oxynaphthalene-6-sulfonic acid. The dye obtained in this way dyes wool and silk from acidic and neutral baths in reddish brown tones.
CH205796D 1937-11-13 1937-11-13 Process for the preparation of a monoazo dye. CH205796A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH201288T 1937-11-13
CH205796T 1937-11-13

Publications (1)

Publication Number Publication Date
CH205796A true CH205796A (en) 1939-06-30

Family

ID=25723691

Family Applications (1)

Application Number Title Priority Date Filing Date
CH205796D CH205796A (en) 1937-11-13 1937-11-13 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH205796A (en)

Similar Documents

Publication Publication Date Title
CH205796A (en) Process for the preparation of a monoazo dye.
CH205804A (en) Process for the preparation of a monoazo dye.
CH205798A (en) Process for the preparation of a monoazo dye.
CH205801A (en) Process for the preparation of a monoazo dye.
CH205800A (en) Process for the preparation of a monoazo dye.
CH211846A (en) Process for the preparation of an azo dye.
CH205807A (en) Process for the preparation of a monoazo dye.
CH205799A (en) Process for the preparation of a monoazo dye.
CH205802A (en) Process for the preparation of a monoazo dye.
CH205797A (en) Process for the preparation of a monoazo dye.
CH155008A (en) Process for the preparation of an acidic wool azo dye.
CH210487A (en) Process for the preparation of a water-soluble monoazo dye.
CH190314A (en) Process for the preparation of an azo dye.
CH205805A (en) Process for the preparation of a monoazo dye.
CH205803A (en) Process for the preparation of a monoazo dye.
CH205806A (en) Process for the preparation of a monoazo dye.
CH211847A (en) Process for the preparation of an azo dye.
CH177829A (en) Process for the preparation of an o-oxyazo dye.
CH184880A (en) Process for the preparation of an o-oxyazo dye.
CH170919A (en) Process for the preparation of an azo dye.
CH259034A (en) Process for the preparation of a metallizable monoazo dye.
CH165412A (en) Process for the production of a new azo dye.
CH217956A (en) Process for the preparation of a disazo dye.
CH174518A (en) Process for the production of a new azo dye.
CH177824A (en) Process for the preparation of an o-oxyazo dye.