CH108204A - Process for the preparation of a wool dye of the Safranin series. - Google Patents

Process for the preparation of a wool dye of the Safranin series.

Info

Publication number
CH108204A
CH108204A CH108204DA CH108204A CH 108204 A CH108204 A CH 108204A CH 108204D A CH108204D A CH 108204DA CH 108204 A CH108204 A CH 108204A
Authority
CH
Switzerland
Prior art keywords
safranin
series
preparation
dye
oxygen
Prior art date
Application number
Other languages
German (de)
Inventor
Anilin-Fabrikation Actien Fuer
Original Assignee
Anilin Fabrikation 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 Anilin Fabrikation Ag filed Critical Anilin Fabrikation Ag
Publication of CH108204A publication Critical patent/CH108204A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B17/00—Azine dyes
    • C09B17/04—Azine dyes of the naphthalene series

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Indole Compounds (AREA)

Description

  

  Verfahren zur Darstellung eines     Wollfarbstoffes    der     Safraninreihe.       Im Hauptpatent ist ein Verfahren zur  Darstellung eines Wollfarbstoffes der     Safranin-          reihe    beschrieben, gemäss welchem man     Isoro-          sindulin-1        #        12-disulfosäure    von der Formel:  
EMI0001.0009     
    in Gegenwart von     Sauerstoff    oder     Sauerstoff     abgebenden Mitteln mit     1.4-Diaininobenzol-          2-sulfösäure    kondensiert.  



  Es wurde nun gefunden, dass man einen       Farbstoff    von den gleichen günstigen Eigen  schaften wie des im Hauptpatent beschrie  benen erhält, wenn man die     Isorosindulin-          1        #        8-disulfosäure    von der Formel:

    
EMI0001.0019     
    die aus     2-Phenylaminonaphtalici-6-sulfosäure     und     Diäthylamino-4-aminobenzol-3-sulfosäure     erhalten wird, in Gegenwart von     Sauerstoff     oder Sauerstoff abgebenden Mitteln mit     1-p-          Toluolsulfamino-4--amino-2-chlorbenzol    kon  densiert und die     Toluolsulfogruppe    mit     ver-          seifenden    Mitteln abspaltet.  



  <I>Beispiel:</I>  Die aus 30 Teilen     2-Phenylaminonaphta-          lin-6-sulfosäure    und 24,5 Teilen     Diäthyl-          amino-4-aminobenzol-3-sulfosäure    erhaltene       Isorosindulin-1        #        8-disulfosäure    wird durch An  oxydieren von 30 Teilen     1-p-Toluolsulfamino-          4-amino-2-chlorbenzol    gemäss der Haupt  Patentanmeldung und Abspalten der     Acidyl-          gruppe    in eine     Safranindisulfosäure    überge  führt.

   Der so erhaltene     Farbstoff    färbt Wolle  in saurem Bade     grünlichblau.  



  Process for the preparation of a wool dye of the Safranin series. The main patent describes a process for the preparation of a wool dye of the Safranin series, according to which isorosinulin-1 # 12-disulfonic acid of the formula:
EMI0001.0009
    condensed in the presence of oxygen or oxygen-releasing agents with 1,4-diaininobenzene-2-sulfoic acid.



  It has now been found that a dye with the same favorable properties as that described in the main patent is obtained if the isorosindulin-1 # 8-disulfonic acid of the formula:

    
EMI0001.0019
    which is obtained from 2-phenylaminonaphtalici-6-sulfonic acid and diethylamino-4-aminobenzene-3-sulfonic acid, in the presence of oxygen or oxygen-releasing agents with 1-p-toluenesulfamino-4-amino-2-chlorobenzene condenses and the toluenesulfo group split off with saponifying agents.



  <I> Example: </I> The isorosindulin-1 # 8-disulfonic acid obtained from 30 parts of 2-phenylaminonaphthalene-6-sulfonic acid and 24.5 parts of diethylamino-4-aminobenzene-3-sulfonic acid is oxidized of 30 parts of 1-p-toluenesulfamino-4-amino-2-chlorobenzene according to the main patent application and cleavage of the acidyl group in a safranine disulfonic acid.

   The dye thus obtained dyes wool greenish-blue in an acidic bath.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Farb stoffes der Safraninreihe, der Wolle in saurem Bade grünlichblau färbt, dadurch gekenn zeichnet, dass man die Isorosindulin-1.8-di- suliosäure von der Formel: EMI0002.0001 in Gegenwart von Sauerstoff oder Sauerstoff abgebenden Mitteln mit 1-p-Toluolsulfamino- 4-amino-2-chlorbenzol kondensiert und mit verseifenden Mitteln die Toluolsulfogruppe abspaltet. PATENT CLAIM: Process for the preparation of a dye of the Safranin series that dyes wool greenish-blue in an acidic bath, characterized in that the isorosindulin-1,8-sulioic acid is derived from the formula: EMI0002.0001 condensed in the presence of oxygen or oxygen-releasing agents with 1-p-toluenesulfamino-4-amino-2-chlorobenzene and splitting off the toluenesulfo group with saponifying agents.
CH108204D 1923-10-20 1923-10-20 Process for the preparation of a wool dye of the Safranin series. CH108204A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH107855T 1923-10-20
CH108204T 1923-10-20

Publications (1)

Publication Number Publication Date
CH108204A true CH108204A (en) 1924-12-16

Family

ID=25707281

Family Applications (1)

Application Number Title Priority Date Filing Date
CH108204D CH108204A (en) 1923-10-20 1923-10-20 Process for the preparation of a wool dye of the Safranin series.

Country Status (1)

Country Link
CH (1) CH108204A (en)

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