CH198890A - Process for the preparation of an N- (dihydro) azine compound of the anthraquinone series. - Google Patents

Process for the preparation of an N- (dihydro) azine compound of the anthraquinone series.

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Publication number
CH198890A
CH198890A CH198890DA CH198890A CH 198890 A CH198890 A CH 198890A CH 198890D A CH198890D A CH 198890DA CH 198890 A CH198890 A CH 198890A
Authority
CH
Switzerland
Prior art keywords
dihydro
preparation
anthraquinone series
azine compound
condensation product
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 CH198890A publication Critical patent/CH198890A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung einer     N-(Dihydro)-azinverbindung    der     Anthraehinonreihe.       Gegenstand     dieses    Zusatzpatentes ist ein  Verfahren zur Herstellung einer     N-(Dihy-          dro)-azinverbindung    der     Anthrachinonreihe,     welches dadurch gekennzeichnet ist, dass man  das aus     1-Bromanthrachinon-2-sulfonsäure     mit     2-Amino-4-sulfondiphenylamin-4'-ogy-3'-          carbonsäure    erhältliche Kondensationspro  dukt     mit    Natronlauge behandelt.

      <I>Beispiel:</I>       2-Amino-4-sulf        ondiphenylamin-4'-ogy-3'-          carbonsäure        wird    mit     1-Bromanthrachinon-2-          sulfonsäure    kondensiert, wobei eine braun  violette     Lösung,der        Verbindung    von der For  mel 1 erhalten     wird.     
EMI0001.0020     
    Diese Lösung     wird    nach dem Filtrieren mit       I/4    ihres Volumens Natronlauge von 40'B6    versetzt und gerührt.

   Nach kurzer     Zeit    ist  die Lösungsfarbe in Blau     umgeschlagen.         Nun wird auf<B>80'</B> C erwärmt und mit Koch  salz versetzt, worauf der Farbstoff der For  mel 2 als blauer Niederschlag ausfällt. Aus  saurem Bade liefert das Produkt auf Wolle       grünstichig    blaue Färbungen, deren     Echt-          heiten    durch     Nachchromieren    noch verbessert       werden    können.



  Process for the preparation of an N- (dihydro) azine compound of the anthraquinone series. The subject of this additional patent is a process for the preparation of an N- (dihydro) azine compound of the anthraquinone series, which is characterized in that the 1-bromoanthraquinone-2-sulfonic acid with 2-amino-4-sulfondiphenylamine-4'-ogy -3'- carboxylic acid available condensation product treated with sodium hydroxide solution.

      <I> Example: </I> 2-Amino-4-sulfondiphenylamine-4'-ogy-3'-carboxylic acid is condensed with 1-bromoanthraquinone-2-sulfonic acid, a brown-violet solution, the compound of the formula 1 is obtained.
EMI0001.0020
    After filtering, this solution is mixed with 1/4 of its volume of 40'B6 sodium hydroxide solution and stirred.

   After a short time, the solution color has turned blue. It is now heated to <B> 80 '</B> C and mixed with sodium chloride, whereupon the dye of formula 2 precipitates out as a blue precipitate. From an acid bath, the product produces greenish blue dyeings on wool, the authenticity of which can be improved by re-chroming.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung einer N-(Di- hydro)-azinverbindung der Anthrachinon- reihe, dadurch gekennzeichnet, dass man das aus 1-Bromanthrachinon-2-sulfonsäure mit 2- Amino-4-sulfoncliphenylamin-4'-oxy-3'-car- bonsiiure erhältliche Kondensationsprodukt mit Natronlauge behandelt. PATENT CLAIM: A process for the preparation of an N- (dihydro) azine compound of the anthraquinone series, characterized in that the mixture obtained from 1-bromoanthraquinone-2-sulfonic acid with 2- amino-4-sulfoncliphenylamine-4'-oxy-3 ' -carboxylic acid available condensation product treated with sodium hydroxide solution. Der so erhältliche Farbstoff bildet ein blaues Pulver, das Wolle aus saurem Bade in grünstiehig blauen Tönen färbt, deren Echtheiten durch Nachchromieren noch ver bessert werden können. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, daB man das als Ausgangs stoff verwendete Kondensationsprodukt mit Natronlauge von 40' Be verrührt. The dyestuff obtainable in this way forms a blue powder which dyes wool from an acid bath in greenish blue tones, the fastness of which can be improved by re-chroming. SUBCLAIM: Process according to patent claim, characterized in that the condensation product used as the starting material is stirred with caustic soda solution of 40% Be.
CH198890D 1935-11-06 1936-11-03 Process for the preparation of an N- (dihydro) azine compound of the anthraquinone series. CH198890A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE198890X 1935-11-06
CH196351T 1936-11-03

Publications (1)

Publication Number Publication Date
CH198890A true CH198890A (en) 1938-07-15

Family

ID=25722843

Family Applications (1)

Application Number Title Priority Date Filing Date
CH198890D CH198890A (en) 1935-11-06 1936-11-03 Process for the preparation of an N- (dihydro) azine compound of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH198890A (en)

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