CH191165A - Process for the preparation of a new monoazo dye. - Google Patents

Process for the preparation of a new monoazo dye.

Info

Publication number
CH191165A
CH191165A CH191165DA CH191165A CH 191165 A CH191165 A CH 191165A CH 191165D A CH191165D A CH 191165DA CH 191165 A CH191165 A CH 191165A
Authority
CH
Switzerland
Prior art keywords
preparation
new
monoazo dye
yellow
dye
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 CH191165A publication Critical patent/CH191165A/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

Landscapes

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

Description

  

      Zusatzpatent    zum     Hauptpatent    Nr. 189140.         Verfahren    zur Darstellung eines neuen     Monoazofarbstoffes.       Es wurde gefunden, dass man einen neuen,  wertvollen     Monoazofarbstoff    erhält, wenn man  die     Diazoverbindung    von     5-Chlor-l-amino-          2-pherroxybenzol    von der Formel  
EMI0001.0009     
    mit     2-Phenylsulforrylamirio-5-oxyrraphthalin-          1,7-disulfonsäure    kuppelt.  



  Der neue Farbstoff, ein oranges Pulver,  löst sich in Wasser gelbrot, in konzentrierter  Schwefelsäure blauviolett und färbt Wolle  und Seide in echten, gelbroten Tönen.  



       Beispiel:     21,9 Teile     5-Chlor-l-amino-2-phenoxyben-          zol    werden dianotiert und mit 46 Teilen       2-Phenylsulfonylamino-5-oxyrraphthalin-1,7-          disulfonsäure    unter gutem Rühren bei 0   C  in verdünnter Lösung in Gegenwart von       Bikarbonat    gekuppelt. Nach Beendigung der       Farbstoffbildung    wird     ausgesalzen    und der    ausgeschiedene     Farbstoff    filtriert und ge  trocknet.  



  Der erhaltene Farbstoff bildet ein oranges  Pulver, das sich in Wasser mit gelbroter, in  konzentrierter Schwefelsäure mit blauvioletter  Farbe löst und Wolle und Seide in echten  gelbroten Tönen anfärbt.



      Additional patent to main patent no. 189140. Process for the preparation of a new monoazo dye. It has been found that a new, valuable monoazo dye is obtained by using the diazo compound of 5-chloro-1-amino-2-pherroxybenzene of the formula
EMI0001.0009
    with 2-phenylsulforrylamirio-5-oxyrraphthalene-1,7-disulfonic acid.



  The new dye, an orange powder, dissolves yellow-red in water and blue-violet in concentrated sulfuric acid and dyes wool and silk in real, yellow-red tones.



       Example: 21.9 parts of 5-chloro-1-amino-2-phenoxybenzene are dianotized and mixed with 46 parts of 2-phenylsulfonylamino-5-oxyrraphthalene-1,7-disulfonic acid with thorough stirring at 0 ° C. in dilute solution in the presence of Bicarbonate coupled. After the formation of the dye has ended, the mixture is salted out and the dye which has separated out is filtered and dried.



  The dye obtained forms an orange powder that dissolves in water with yellow-red color, in concentrated sulfuric acid with blue-violet color and dyes wool and silk in real yellow-red tones.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Monoazofarbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung von 5-Chlor- 1-amino-2-phenoxybenzol von der Formel EMI0001.0025 mit 2-Phenylsulfonylamino-5-oxynaphtbalin- 1,7-disulfonsäure kuppelt. Der neue Farbstoff bildet ein oranges Pulver, welches in Wasser mit gelbroter, in konzentrierter Schwefelsäure mit blauvioletter Farbe löslich ist. Er färbt Wolle und Seide in echten, gelbroten Tönen. Claim: Process for the preparation of a new monoazo dye, characterized in that the diazo compound of 5-chloro-1-amino-2-phenoxybenzene of the formula EMI0001.0025 with 2-phenylsulfonylamino-5-oxynaphtbalin-1,7-disulfonic acid. The new dye forms an orange powder, which is soluble in water with a yellow-red color and in concentrated sulfuric acid with a blue-violet color. He dyes wool and silk in real, yellow-red tones.
CH191165D 1936-03-05 1936-03-05 Process for the preparation of a new monoazo dye. CH191165A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH191165T 1936-03-05
CH189140T 1936-03-05

Publications (1)

Publication Number Publication Date
CH191165A true CH191165A (en) 1937-05-31

Family

ID=25721747

Family Applications (1)

Application Number Title Priority Date Filing Date
CH191165D CH191165A (en) 1936-03-05 1936-03-05 Process for the preparation of a new monoazo dye.

Country Status (1)

Country Link
CH (1) CH191165A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0564404A1 (en) * 1992-04-01 1993-10-06 Ciba-Geigy Ag Process for leather dyeing with mixtures of dyes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0564404A1 (en) * 1992-04-01 1993-10-06 Ciba-Geigy Ag Process for leather dyeing with mixtures of dyes
US5354341A (en) * 1992-04-01 1994-10-11 Ciba-Geigy Corporation Process for dyeing leather with dye mixtures

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