CH166665A - 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
CH166665A
CH166665A CH166665DA CH166665A CH 166665 A CH166665 A CH 166665A CH 166665D A CH166665D A CH 166665DA CH 166665 A CH166665 A CH 166665A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
dioxyquinoline
oxyazo
benzo
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 CH166665A publication Critical patent/CH166665A/en

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Description

  

  Verfahren zur     Herstellung    eines     o-Ogyazofarbstoffes.       Nach dem durch das Hauptpatent ge  schützten Verfahren erhält man einen Wolle  in Gegenwart von Chrombeizen echt anfär  benden Farbstoff, wenn man     4-Chlor-2-diazo-          1-oxybenzol-6-sulfosäure    mit     7.8-Benzo-2.4-          dioxychinolin    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen     Farbstoff    mit ähnlichen guten  Eigenschaften, wenn man an Stelle des     7.8-          Benzo-2.4-dioxychinolins        5.6-Benzo-2.4-          dioxychinolin,    als     Azokomponente    wählt.  



  Man erhält dieses letztgenannte     Dioxy-          chinolin    ganz ähnlich, wie das     7.8-Benzo-          2.4-dioxychinolin,    nämlich durch Erhitzen  von     2-Naphthylamin    und     Malonester.     



  <I>Beispiel:</I>  22,4 Teile     4-Chlor-2-amino-l-oxybenzol-6-          sulfosäure    werden mit etwa 300 Teilen Was  ser     angeschlämmt    und nach Zusatz von 5  Teilen Salzsäure von 121     B6    mit 6,9 Teilen       Natriumnitrit    bei<B>100</B>     diazotiert.    Die fertige         Diazoverbindung    läuft in eine kalte Lösung  von 23 Teilen     5.6-Benzo-2.4-dioxychinolin     und 6 Teilen     Natriumhydroxyd    in etwa 500  Teilen Wasser. Nach beendeter     .Kombination     wird der     Farbstoff    in bekannter Weise auf  gearbeitet.

   Er stellt in trockenem Zustand  ein dunkles Pulver dar und färbt Wolle nach  dem     Einbad-Chromverfahren    in violetten  Tönen von sehr guter Wasch- und     Walkecht-          heit    an.



  Process for the preparation of an o-ogyazo dye. According to the process protected by the main patent ge one obtains a wool in the presence of chrome stains really staining dye if 4-chloro-2-diazo-1-oxybenzene-6-sulfonic acid is coupled with 7.8-benzo-2.4-dioxyquinoline.



  As has now been found, a dye with similar good properties is obtained if 5.6-benzo-2.4-dioxyquinoline is chosen as the azo component instead of 7.8-benzo-2.4-dioxyquinoline.



  This last-mentioned dioxyquinoline is obtained in a very similar way to 7.8-benzo-2,4-dioxyquinoline, namely by heating 2-naphthylamine and malonic ester.



  <I> Example: </I> 22.4 parts of 4-chloro-2-amino-1-oxybenzene-6-sulfonic acid are slurried with about 300 parts of water and, after addition of 5 parts of hydrochloric acid, 121 B6 with 6.9 Share sodium nitrite at <B> 100 </B> diazotized. The finished diazo compound runs into a cold solution of 23 parts of 5.6-benzo-2.4-dioxyquinoline and 6 parts of sodium hydroxide in about 500 parts of water. After the combination has ended, the dye is worked up in a known manner.

   When dry, it is a dark powder and uses the single-bath chrome process to dye wool in purple tones that are very washable and milled.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Wolle nach dem Einbad-Chromverfahren in violetten Tönen von guter Walk- und Waschechtheit und ausgezeichneter Licbtecbtheit anfärben den Farbstoffes, dadurch gekennzeichnet, dass man 4-Chlor-2-diazo-l-oxyber)zol-6-sulfosäure mit 5.6-Benzo-2.4-dioxychinolin kuppelt. PATENT CLAIM: Process for the production of wool by the single bath chrome process in violet shades of good mill and wash fastness and excellent lightness dyeing the dye, characterized in that 4-chloro-2-diazo-1-oxyber) zol-6-sulfonic acid coupled with 5.6-benzo-2.4-dioxyquinoline.
CH166665D 1932-04-18 1932-11-11 Process for the preparation of an o-oxyazo dye. CH166665A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE166665X 1932-04-18
CH164201T 1932-11-11

Publications (1)

Publication Number Publication Date
CH166665A true CH166665A (en) 1934-01-15

Family

ID=25717941

Family Applications (1)

Application Number Title Priority Date Filing Date
CH166665D CH166665A (en) 1932-04-18 1932-11-11 Process for the preparation of an o-oxyazo dye.

Country Status (1)

Country Link
CH (1) CH166665A (en)

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