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CH177831A - Process for the preparation of an o-oxyazo dye. - Google Patents

Process for the preparation of an o-oxyazo dye.

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Publication number
CH177831A
CH177831A CH177831DA CH177831A CH 177831 A CH177831 A CH 177831A CH 177831D A CH177831D A CH 177831DA CH 177831 A CH177831 A CH 177831A
Authority
CH
Switzerland
Prior art keywords
dye
oxyazo
preparation
amino
oxynaphthalene
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH177831A publication Critical patent/CH177831A/en

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Description

  

  verfahren zur Herstellung eines     o-Axyazofarbstoffes.       Nach dem im Hauptpatent beschriebenen  Verfahren erhält man eine Wolle in Ge  genwart einer Chrombeize in blaugrünen  Tönen anfärbenden     o-Oxyazofarbstoff,    wenn  man     2-Amino-l-oxybenzol        diazotiert    und die       Diazoverbindung    mit     1-Phenylamino-8-oxy-          naphthalin-4-sulfosäure    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen ähnlichen     Farbstoff,    wenn man       3.4.5.6-Tetrachlor-2-amino-l-oxybenzol        dia-          zotiert    und die     Diazoverbindung    mit     1-(2'-          Tolyl)-amino    - 8 -     oxynaphthalin    - 4-     sulfosäure     kuppelt.  



       Beispiel:     247 Teile     3.4.5.6-Tetrachlor-2-amino-l-          oxybenzol    werden dianotiert und     sodaalka-          lisch    mit 345 Teilen 1-(2'-Tolyl)-amino-8-         oxynaphthalin-4-sulfosäure    gekuppelt. Der so  erhaltene Farbstoff färbt ebenfalls nach dem       Metachromverfahren    Wolle in schönen grünen  Tönen an.



  process for the production of an o-axyazo dye. According to the process described in the main patent, wool is obtained in the presence of a chromium stain in blue-green tones, o-oxyazo dye, if 2-amino-1-oxybenzene is diazotized and the diazo compound is treated with 1-phenylamino-8-oxynaphthalene-4-sulfonic acid clutch.



  As has now also been found, a similar dye is obtained if 3.4.5.6-tetrachloro-2-amino-1-oxybenzene is diazotized and the diazo compound with 1- (2'-tolyl) -amino-8-oxynaphthalene-4 - sulfonic acid couples.



       Example: 247 parts of 3.4.5.6-tetrachloro-2-amino-l-oxybenzene are dianotized and coupled with 345 parts of 1- (2'-tolyl) -amino-8-oxynaphthalene-4-sulfonic acid using soda-alkali. The dye obtained in this way also dyes wool in beautiful green tones using the Metachrome process.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines o-Oxyazo- farbstoffes, dadurch gekennzeichnet, dass man 3-4#5#6-Tetrachloc--2-amino-l-oxybenzol diazo- tiert und die Diazoverbindung mit 1-(2'- Tolyl)-amino-8-oxynaphthalin-4-sulfosäure kup pelt. Der so erhaltene Farbstoff färbt Wolle nach dem Metachromverfahren in schönen grünen Tönen an. PATENT CLAIM: Process for the production of an o-oxyazo dye, characterized in that 3-4 # 5 # 6-tetrachloc - 2-amino-1-oxybenzene is diazo- and the diazo compound with 1- (2'-tolyl) -amino-8-oxynaphthalene-4-sulfonic acid kup pelt. The dye obtained in this way dyes wool in beautiful green tones using the Metachrome process.
CH177831D 1933-05-10 1934-03-02 Process for the preparation of an o-oxyazo dye. CH177831A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE177831X 1933-05-10
CH174650T 1935-01-31

Publications (1)

Publication Number Publication Date
CH177831A true CH177831A (en) 1935-06-15

Family

ID=25719543

Family Applications (1)

Application Number Title Priority Date Filing Date
CH177831D CH177831A (en) 1933-05-10 1934-03-02 Process for the preparation of an o-oxyazo dye.

Country Status (1)

Country Link
CH (1) CH177831A (en)

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