CH177144A - Process for the preparation of a dye of the Safranine series. - Google Patents

Process for the preparation of a dye of the Safranine series.

Info

Publication number
CH177144A
CH177144A CH177144DA CH177144A CH 177144 A CH177144 A CH 177144A CH 177144D A CH177144D A CH 177144DA CH 177144 A CH177144 A CH 177144A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
series
safranine
dimethyl
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 CH177144A publication Critical patent/CH177144A/en

Links

Landscapes

  • Indole Compounds (AREA)

Description

  

  Verfahren zur Darstellung eines     Farbstoffes    der     Safr        aninreihe.       Im Hauptpatent und seinen Zusätzen sind  Verfahren zur Darstellung von Farbstoffen  der     Safrauinreihe    beschrieben, nach welchen  man     Isorosindulin-6-sulfonsäuren    der all  gemeinen Formel  
EMI0001.0006     
         worin        R.1    und     R2    =     Alkyl,        Aralkyl    oder       Aryl        bedeuten    und worin die Kerne weiter  hin substituiert sein können, mit solchen aro  matischen     1,

  4-Diamino-3-sulfonsäuren    kon  densiert, die in beiden     Aminogruppen    nicht  substituiert sind und die in     2-Stellung    eine         Alkylgruppe,    oder in 2- und     6-Stellung     gleiche oder verschiedene     Substituenten    ent  halten.  



  Es wurde nun gefunden, dass man die  gleichen Farbstoffe erhalten kann, wenn man  die genannten     Isorosindulin-6-sulfonsäuren     mit solchen aromatischen     1,4-Diaminen,    die  in beiden     Aminogruppen    nicht substituiert  sind und die in     2-Stellung    eine     Alkylgruppe,     oder in 2- und     6-Stellung    gleiche oder ver  schiedene     Substituenten,    wie     zum    Beispiel       Alkyl,        Ogalkyl,    Halogen, enthalten, konden  siert und die so erhältlichen Farbstoffe mit  einem sulfonierenden     Mittel    behandelt.  



  Gegenstand des vorliegenden     Patentes    ist  ein Verfahren zur Herstellung eines Farb  stoffes der     Safraninreihe.    Es ist dadurch ge  kennzeichnet, dass man     11-Methyldiäthyl-          isorosindulin-1,6-disulfonsäure    mit     2,6-Di-          methyl-1,4-diaminobenzol    kondensiert und  den erhaltenen Farbstoff sulfoniert.

        <I>Beispiel:</I>  Die aus je     '/1o        gr-Hol    der Komponenten  in üblicher Weise erhaltene     11-Methyl-          diäthylisorosindulin    -1,6 -     disulfonsäure    wird  in wässeriger Lösung unter Zusatz von 20     gr          Natriumacetat    mit 15     gr        2,6-Dimethyl-1,4-          diaminobenzol    bei zirka 80   umgesetzt. Der  erhaltene Farbstoff wird mit der fünffachen  Menge     Oleum        2,0%    auf<B>85'</B> erwärmt, bis  \eine Probe mit     Natriumacetat    löslich ist.  



  Das erhaltene     Safranin    der wahrschein  lichen     Formel     
EMI0002.0016     
    ist identisch mit dem nach dem Hauptpatent  erhaltenen Farbstoff.



  Process for the preparation of a dye of the saffron series. In the main patent and its additions, processes for the preparation of dyes of the Safrauin range are described, according to which one isorosindulin-6-sulfonic acids of the general formula
EMI0001.0006
         where R.1 and R2 = alkyl, aralkyl or aryl and where the nuclei can be further substituted with such aromatic 1,

  4-diamino-3-sulfonic acids condensed which are unsubstituted in both amino groups and which contain an alkyl group in the 2-position or identical or different substituents in the 2- and 6-positions.



  It has now been found that the same dyes can be obtained if the said isorosindulin-6-sulfonic acids are mixed with aromatic 1,4-diamines which are unsubstituted in both amino groups and which are an alkyl group in the 2-position or in the 2-position - and 6-position identical or different substituents, such as alkyl, Ogalkyl, halogen, contain, condensed and treated the dyes thus obtainable with a sulfonating agent.



  The present patent is a process for the production of a dye of the Safranin range. It is characterized in that 11-methyldiethyl isorosindulin-1,6-disulfonic acid is condensed with 2,6-dimethyl-1,4-diaminobenzene and the dye obtained is sulfonated.

        <I> Example: </I> The 11-methyl-diethylisorosindulin -1,6-disulfonic acid obtained in the usual way from each '/ 1o gr-Hol of the components is dissolved in aqueous solution with the addition of 20 g sodium acetate with 15 g 2, 6-dimethyl-1,4-diaminobenzene converted at about 80. The dye obtained is heated to <B> 85 '</B> with five times the amount of 2.0% oleum until a sample with sodium acetate is soluble.



  The saffron in the probable formula
EMI0002.0016
    is identical to the dye obtained according to the main patent.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Farb stoffes der Safraninreihe, dadurch gekenn zeichnet, dass inan 11-Methyl-diäthylisoros- indulin-1,6-disulfonsäure mit 2,6-Dimethyl- 1,4-diaminobenzo1 kondensiert und den erhal tenen Farbstoff sulfoniert. Der Farbstoff ist identisch mit dem nach dem Hauptpatent erhaltenen. PATENT CLAIM: Process for the production of a dye of the Safranin range, characterized in that inan 11-methyl-diethylisoros-indulin-1,6-disulfonic acid condenses with 2,6-dimethyl-1,4-diaminobenzo1 and sulfonates the obtained dye. The dye is identical to that obtained according to the main patent.
CH177144D 1933-01-14 1934-01-12 Process for the preparation of a dye of the Safranine series. CH177144A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE177144X 1933-01-14
CH172732T 1934-01-12

Publications (1)

Publication Number Publication Date
CH177144A true CH177144A (en) 1935-05-15

Family

ID=25719252

Family Applications (1)

Application Number Title Priority Date Filing Date
CH177144D CH177144A (en) 1933-01-14 1934-01-12 Process for the preparation of a dye of the Safranine series.

Country Status (1)

Country Link
CH (1) CH177144A (en)

Similar Documents

Publication Publication Date Title
CH177144A (en) Process for the preparation of a dye of the Safranine series.
CH177145A (en) Process for the preparation of a dye of the Safranine series.
CH178958A (en) Process for the preparation of a dye of the Safranine series.
CH177146A (en) Process for the preparation of a dye of the Safranine series.
DE470652C (en) Process for the preparation of cotton azo dyes
DE842103C (en) Process for the preparation of sulfonated carbazole derivatives of the anthraquinone series
DE198864C (en)
DE534930C (en) Process for the preparation of quinizarine sulfonic acids
DE535670C (en) Process for the preparation of azo dyes
DE455823C (en) Process for the production of ª ‰ -alanines of the anthraquinone series
CH178959A (en) Process for the preparation of a dye of the Safranine series.
CH149708A (en) Process for the preparation of an acidic wool dye of the anthraquinone series.
CH137661A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH135480A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH178115A (en) Process for the preparation of a dye of the Safranine series.
CH193254A (en) Process for the production of an acidic wool dye.
CH166093A (en) Process for the production of an easily soluble, basic dye.
CH202443A (en) Process for the production of an acidic wool dye.
CH137660A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH193263A (en) Process for the production of an acidic wool dye.
CH170930A (en) Process for the preparation of a water-soluble azo dye.
CH166095A (en) Process for the production of an easily soluble, basic dye.
CH208545A (en) Process for the production of an anthraquinone derivative.
CH178116A (en) Process for the preparation of a dye of the Safranine series.
CH189316A (en) Process for the preparation of a dioxazine dye sulfonic acid.