CH212348A - Process for the preparation of an acidic triphenylmethane dye. - Google Patents

Process for the preparation of an acidic triphenylmethane dye.

Info

Publication number
CH212348A
CH212348A CH212348DA CH212348A CH 212348 A CH212348 A CH 212348A CH 212348D A CH212348D A CH 212348DA CH 212348 A CH212348 A CH 212348A
Authority
CH
Switzerland
Prior art keywords
dye
acidic
preparation
triphenylmethane dye
weight
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 CH212348A publication Critical patent/CH212348A/en

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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
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/28—Pyronines ; Xanthon, thioxanthon, selenoxanthan, telluroxanthon dyes

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines sauren     Triphenylmethanfarbstoffes.       Gegenstand dieses Patentes ist ein Ver  fahren zur Herstellung eines sauren     Tri-          phenylmethanfarbstoffes,    welches darin be  steht, dass man 3.     6-Dichlorganthon    mit     1-          Isobutyl    - 2     -:

  p-chlorphenyl-4    .     6-dimethylindol     kondensiert, in der so     erhaltenen        Verbindung     die     in    3- und     6-Stellung        befindlichen    Chlor  atome gegen den Rest des     1-Methylamino-4-          methogybenzols    austauscht und den so gebil  deten Farbstoff     zür        Disulfonsäure    sulfoniert.  



  Der so erhaltene neue Farbstoff färbt  Wolle und Seide in klaren violetten Tönen  von guten Echtheitseigenschaften.    <I>Beispiel:</I>       18,3    Gewichtsteile . 3.     6-Dichlorganthon,     16     Gewichtsteile        1-Isobutyl-2-p-chlorphenyl-          4.6-dimethylindol,    8 Gewichtsteile Chlor-         zink    und 10 Gewichtsteile     Phosphorogychlo-          rid    werden in 75 Gewichtsteilen     Toluol    unter       Rückflusskühlung    so lange gekocht, bis keine  Salzsäure mehr abgespalten wird.

   Das sich  abscheidende Kondensationsprodukt     wird     nach Entfernung des     Toluols    mit 50     Ge-          wichtsteilen        1-Methylamino-4-methogybenzol     2 Stunden bei<B>110'</B> C     verschmolzen.    Der so  erhaltene violette Farbstoff wird durch An  rühren mit     verdünnter    Salzsäure vom Basen  überschuss befreit und nach dem Trocknen  mit     Sohwefelsäuremonohydrat    durch mehr  stündiges Erhitzen, z.

   B. 4     Stunden,    auf  <B>30'</B> C zur     Disulfonsäure        sulfoniert.    Der so  erhaltene Farbstoff färbt als     Natriumsalz     Wolle und Seide in     violetten    Tönen von  guten     Echtheiten.    Der Farbstoff hat     wahr-          scheinlich    folgende Konstitution:    
EMI0002.0001     




  Process for the preparation of an acidic triphenylmethane dye. The subject of this patent is a process for the production of an acidic triphenylmethane dye, which is that 3. 6-dichloroganthone with 1-isobutyl - 2 -:

  p-chlorophenyl-4. 6-dimethylindole condenses, in the compound thus obtained the chlorine atoms in the 3- and 6-positions are exchanged for the remainder of the 1-methylamino-4-methogybenzene and the dyestuff thus formed is sulfonated to disulfonic acid.



  The new dye thus obtained dyes wool and silk in clear violet shades with good fastness properties. <I> Example: </I> 18.3 parts by weight. 3. 6-dichloroganthone, 16 parts by weight of 1-isobutyl-2-p-chlorophenyl-4,6-dimethylindole, 8 parts by weight of zinc chloride and 10 parts by weight of phosphorogychloride are refluxed in 75 parts by weight of toluene until hydrochloric acid is no longer split off .

   After the toluene has been removed, the condensation product which separates out is fused with 50 parts by weight of 1-methylamino-4-methogybenzene at 110 ° C. for 2 hours. The violet dye obtained in this way is freed from excess base by stirring with dilute hydrochloric acid and, after drying, with sulfuric acid monohydrate by heating for more hours, e.g.

   B. 4 hours, sulfonated to <B> 30 '</B> C to disulfonic acid. The dye thus obtained, as the sodium salt, dyes wool and silk in violet shades with good fastness properties. The dye probably has the following constitution:
EMI0002.0001

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Triphenylmethanfarbstoffes, dadurch gekenn zeichnet, dass man 3. 6-Diehlorxanthon mit 1- Isobutyl - 2 - p-chlorphenyl-4 . 6-dimethylindol kondensiert, in der so erhaltenen Verbindung die in 3- und 6-Stellung befindlichen Chlor- atome gegen den Rest des 1-llethylamino-4- methoxybenzols austauscht und den so gebil deten Farbstoff zur Disulfonsäure sulfoniert. PATENT CLAIM: Process for the preparation of an acidic triphenylmethane dye, characterized in that 3. 6-Diehlorxanthone with 1- isobutyl - 2 - p-chlorophenyl-4. 6-dimethylindole condenses, in the compound thus obtained the chlorine atoms in the 3- and 6-positions are exchanged for the remainder of the 1-llethylamino-4-methoxybenzene and the dye thus formed is sulfonated to disulfonic acid. Der so erhaltene neue Farbstoff färbt Wolle und Seide in klaren violetten Tönen von guten Echtheitseigenschaften. The new dye thus obtained dyes wool and silk in clear violet shades with good fastness properties.
CH212348D 1937-11-04 1938-08-29 Process for the preparation of an acidic triphenylmethane dye. CH212348A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE212348X 1937-11-04
CH210599T 1938-08-29

Publications (1)

Publication Number Publication Date
CH212348A true CH212348A (en) 1940-11-15

Family

ID=25724903

Family Applications (1)

Application Number Title Priority Date Filing Date
CH212348D CH212348A (en) 1937-11-04 1938-08-29 Process for the preparation of an acidic triphenylmethane dye.

Country Status (1)

Country Link
CH (1) CH212348A (en)

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