CH178751A - Process for the production of an acidic dye of the Safranin series. - Google Patents

Process for the production of an acidic dye of the Safranin series.

Info

Publication number
CH178751A
CH178751A CH178751DA CH178751A CH 178751 A CH178751 A CH 178751A CH 178751D A CH178751D A CH 178751DA CH 178751 A CH178751 A CH 178751A
Authority
CH
Switzerland
Prior art keywords
series
sulfonic acid
safranin
production
acidic dye
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 CH178751A publication Critical patent/CH178751A/en

Links

Landscapes

  • Indole Compounds (AREA)

Description

  

  Verfahren zur Herstellung eines sauren Farbstoffes der     Safraninreihe.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines sauren  Farbstoffes der     Safraninreihe.    Es ist dadurch  gekennzeichnet, dass man die aus     o-Tolyl-(3-          naplithylamin    und     4-aininodiätliylanilin-3-          sulfonsaurem    Natrium hergestellte     Isorosin-          dulin-l-sulfonsäure    mit     Bisulfit    in die     1.6-          Disulfonsäure    überführt und diese mit     2-          

  Metlioxy-    4-     aniinodipherrylaniin-2-sulfonsäure     umsetzt.    <I>Beispiel:</I>  Die aus 23,5     gi-        o-Tolyl-fi-naphthylamin     und 26,5     gr        4-aniinodiäthylaniiin-3-sulfon-          saurem    Natrium hergestellte     Isorosindulin-l-          sulfonsäure    wird durch Behandeln mit     Bisulfit     in die     1.6-Disulfonsäure    übergeführt,

   diese  wird in wässeriger oderverdünnter alkoholi  scher Lösung mit 30     gr        2'-Methoxy-4-          aminodiphenylamin-2-sulfonsäure    unter Zu  satz von 20     gr        Natriumacetat        krist.    erwärmt.  Der erhaltene Farbstoff der wahrscheinlichen  Formel  
EMI0001.0030     
      löst sich in konzentrierter Schwefelsäure  grasgrün, in heissem Wasser klar blau und  färbt Wolle licht-, wasch- und     walkecht    in  reinen blauen Tönen.



  Process for the production of an acidic dye of the Safranin series. The subject of the present patent is a process for the preparation of an acidic dye of the safranine series. It is characterized in that the isorosindulin-1-sulfonic acid prepared from o-tolyl- (3-naplithylamine and 4-aininodiätliylanilin-3-sulfonic acid sodium is converted with bisulfite into 1,6-disulfonic acid and this with 2-

  Metlioxy- 4-aniinodipherrylaniin-2-sulfonic acid converts. <I> Example: </I> The isorosindulin-l-sulfonic acid produced from 23.5 gi- o-tolyl-fi-naphthylamine and 26.5 g of 4-aniinodiethylaniiin-3-sulfonic acid is converted into by treatment with bisulfite the 1,6-disulfonic acid converted,

   this is crystallized in aqueous or dilute alcoholic solution with 30 g of 2'-methoxy-4-aminodiphenylamine-2-sulfonic acid with the addition of 20 g of sodium acetate. warmed up. The obtained dye of the likely formula
EMI0001.0030
      dissolves grass green in concentrated sulfuric acid, clear blue in hot water and dyes wool in pure blue tones that are lightfast, washable and whackfast.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Farbstoffes der Safraninreihe, dadurch ge kennzeichnet, dass man die aus o-Tolyl-p- naphthy lamm und 4-aminodiäthylanilin-3- sulfonsaurem Natrium hergestellte Isorosin- dulin-l-sulfonsänre mit $isulfit in die 1. 6 Disulfonsäure überführt und diese mit 2'- NIethogy-4-aminodiphenylamin-2-sulfonsäure umsetzt. PATENT CLAIM: A process for the production of an acidic dye of the Safranin series, characterized in that the isorosindulin-1-sulfonic acid produced from o-tolyl-p-naphthyl lamb and 4-aminodiethylaniline-3-sulfonic acid sodium is converted into the 1 6 Disulfonic acid transferred and this reacted with 2'-NIethogy-4-aminodiphenylamine-2-sulfonic acid. Der Farbstoff löst sich in konzentrierter Schwefelsäure grasgrün, in heissem Wasser klar blau und färbt Wolle licht-, wasch und walkecht in reinen blauen Tönen. The dye dissolves grass green in concentrated sulfuric acid, clear blue in hot water and dyes wool in pure blue tones that are lightfast, washable and milled.
CH178751D 1933-01-14 1934-01-12 Process for the production of an acidic dye of the Safranin series. CH178751A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE178751X 1933-01-14
CH174350T 1934-01-12

Publications (1)

Publication Number Publication Date
CH178751A true CH178751A (en) 1935-07-31

Family

ID=25719507

Family Applications (1)

Application Number Title Priority Date Filing Date
CH178751D CH178751A (en) 1933-01-14 1934-01-12 Process for the production of an acidic dye of the Safranin series.

Country Status (1)

Country Link
CH (1) CH178751A (en)

Similar Documents

Publication Publication Date Title
CH178751A (en) Process for the production of an acidic dye of the Safranin series.
CH178753A (en) Process for the production of an acidic dye of the Safranin series.
CH178752A (en) Process for the production of an acidic dye of the Safranin series.
CH178754A (en) Process for the production of an acidic dye of the Safranin series.
CH174350A (en) Process for the preparation of an acidic dye of the Safranin series.
CH186176A (en) Process for the preparation of an acidic dye of the Safranin series.
CH186175A (en) Process for the preparation of an acidic dye of the Safranin series.
CH195224A (en) Process for the preparation of a chromable monoazo dye.
CH97360A (en) Process for the preparation of a condensation product of the anthraquinone series which can be used as dye and dye intermediate.
CH181718A (en) Process for the production of a new dye of the anthraquinone series.
CH181451A (en) Process for the preparation of an acidic dye of the Safranin series.
CH196537A (en) Process for the preparation of a chromable monoazo dye.
CH128154A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH193262A (en) Process for the production of an acidic wool dye.
CH196535A (en) Process for the preparation of a chromable monoazo dye.
CH193259A (en) Process for the production of an acidic wool dye.
CH128151A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH171233A (en) Process for the production of a new azo dye.
CH196536A (en) Process for the preparation of a chromable monoazo dye.
CH128159A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH193261A (en) Process for the production of an acidic wool dye.
CH128160A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH205073A (en) Process for the preparation of a polymethine dye.
CH190423A (en) Process for the production of a new azo dye.
CH197200A (en) Process for the production of an acidic wool dye.