CH177822A - 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
CH177822A
CH177822A CH177822DA CH177822A CH 177822 A CH177822 A CH 177822A CH 177822D A CH177822D A CH 177822DA CH 177822 A CH177822 A CH 177822A
Authority
CH
Switzerland
Prior art keywords
dye
oxyazo
preparation
amino
diazotized
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 CH177822A publication Critical patent/CH177822A/en

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  Verfahren zur Herstellung eines     o-Oxyazofarbstofes.       Nach dem im Hauptpatent beschriebenen  Verfahren erhält man einen Wolle in Gegen  wart einer Chrombeize in blaugrünen Tönen  anfärbenden     o-Oxyazofarbstoff,    wenn man     2-          Amino-l-oxybenzol        diazotiert    und die     Diazo-          verbindung    mit     1-Phenylamino-8-oxynaphtha-          lin-4-sulfosäure    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen ähnlichen Farbstoff, wenn man       3.4.5-Trichlor-2-amino-l-oxybenzol        diazotiert     und die     Diazoverbindung    mit     1-(4'-Tolyl)-          acnino-8-oxynaphthalin-4-sulfosäure    kuppelt.

    <I>Beispiel:</I>  212,5 Teile 3.4.     5-Trichlor-2-amino-l-oxy-          benzol    werden mit 500 Teilen Salzsäure 12         Be    und 69 Teilen     Natriumnitrit        diazotiert.     Die     Diazoverbindung    läuft dann zu einer  Lösung von 345 Teilen 1-(4'-Tolyl)-amino-8-         oxynaphthalin-4-sulfosäure    und 240 Teilen  Soda. Nach beendeter Kupplung wird in üb  licher Weise aufgearbeitet. Man erhält einen       Farbstoff,    der sich in Wasser mit blauer Farbe  löst. Mit     Metachrombeize    wird auf Wolle ein  blaues Grün von guten     Echtheiten    erhalten.



  Process for the preparation of an o-oxyazo dye. The process described in the main patent gives a wool in the presence of a chrome stain in blue-green shades of o-oxyazo dye when 2-amino-1-oxybenzene is diazotized and the diazo compound with 1-phenylamino-8-oxynaphthalin-4 -sulfonic acid couples.



  As has now been found, a similar dye is obtained if 3,4,5-trichloro-2-amino-1-oxybenzene is diazotized and the diazo compound is diazotized with 1- (4'-tolyl) -acnino-8-oxynaphthalene-4-sulfonic acid clutch.

    <I> Example: </I> 212.5 parts 3.4. 5-Trichloro-2-amino-1-oxybenzene is diazotized with 500 parts of hydrochloric acid 12 Be and 69 parts of sodium nitrite. The diazo compound then runs into a solution of 345 parts of 1- (4'-tolyl) -amino-8-oxynaphthalene-4-sulfonic acid and 240 parts of soda. After the coupling has ended, it is worked up in the usual way. A dye is obtained which dissolves in water with a blue color. Metachrome stain gives a blue green with good fastness properties on wool.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines o-Oxy- azofa.rbstoffes, dadurch gekennzeichnet, dass man 3.4.5-Trichlor-2-amino-l-oxybenzol di- azotiert und die Diazoverbindung mit 1-(4'- Tolyl) - amino - 8 - oxynaphthalin - 4 - sulfosäure kuppelt. Mit Metachrombeize wird auf Wolle ein blaues Grün erhalten. PATENT CLAIM: A process for the production of an o-oxyazofa dye, characterized in that 3.4.5-trichloro-2-amino-l-oxybenzene is diazotized and the diazo compound is azotized with 1- (4'-tolyl) -amino- 8 - oxynaphthalene - 4 - sulfonic acid couples. With Metachrome stain a blue green is obtained on wool.
CH177822D 1933-05-10 1934-03-02 Process for the preparation of an o-oxyazo dye. CH177822A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE177822X 1933-05-10
CH174650T 1935-01-31

Publications (1)

Publication Number Publication Date
CH177822A true CH177822A (en) 1935-06-15

Family

ID=25719534

Family Applications (1)

Application Number Title Priority Date Filing Date
CH177822D CH177822A (en) 1933-05-10 1934-03-02 Process for the preparation of an o-oxyazo dye.

Country Status (1)

Country Link
CH (1) CH177822A (en)

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