CH177133A - Process for the preparation of an acidic triphenylmethane dye. - Google Patents

Process for the preparation of an acidic triphenylmethane dye.

Info

Publication number
CH177133A
CH177133A CH177133DA CH177133A CH 177133 A CH177133 A CH 177133A CH 177133D A CH177133D A CH 177133DA CH 177133 A CH177133 A CH 177133A
Authority
CH
Switzerland
Prior art keywords
acidic
preparation
phenetidine
triphenylmethane dye
process according
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 CH177133A publication Critical patent/CH177133A/en

Links

Landscapes

  • Coloring (AREA)

Description

  

  Verfahren zur Darstellung eines sauren     Triphenylmethanfarbstoffes.            Gr-genstand    vorliegenden Patentes ist ein  Verfahren zur Darstellung eines sauren     Tri-          phenylmethanfarbstoffes,    welches darin be  steht,     da.ss    man 4.     4'-Dichlorbenzophenon    mit       N-isobutyl-Bz-2    .

       4-dimethyl-a-(p-chlorphe-          nyl)-indol    kondensiert, dann in     ,dem    so er  haltenen Kondensationsprodukt die in 4- und       4'-Stellung        befindlichen    Chloratome mit       p-Phenetidin    umsetzt und die so erhaltene  Verbindung mit einem     sulfierenden        Mittel          behandelt.     



  <I>Beispiel:</I>  25 Gewichtsteile     4.4'-Dichlorbenzophe-          non    werden mit 31     Gewichtsteilen        N-Isobu-          tyl-Bz-2    .     4-dimethyl    -a-     (p-chlorphenyl)-indol       bei Gegenwart von 20     Gewichtsteilen        Phos-          phorogychlorid    durch mehrstündiges Kochen  in 100 Gewichtsteilen     Toluol    kondensiert.

    Nach     Abdestillieren    des     Toluols    und des noch  vorhandenen     Phosphorogychlorides    wird :das       Kondensationsprodukt    4 Stunden mit 60 Ge  wichtsteilen     p-Phenetidin    bei 120   ver  schmolzen.

   Das überschüssige     p-Phenetidin     wird nach dem Erkalten der Schmelze .durch       Ausrühren    mit verdünnter Salzsäure, worin  der entstandene blaue basische Farbstoff un  löslich ist, entfernt, und     letzterer    nach dem  Trocknen mit Schwefelsäure     sulfiert.    Man  erhält auf diese Weise einen sauren Farb  stoff folgender     Konstitution:       
EMI0002.0001     
    der als Na-Salz Wolle und Seide in leuch  tenden     grünstichigblauen    Tönen anfärbt, die  sich durch eine     hervorragende    Lichtechtheit  und besonders     schöneAbendfarbe    auszeichnen.



  Process for the preparation of an acidic triphenylmethane dye. The subject matter of the present patent is a process for the preparation of an acidic triphenylmethane dye, which consists in that one 4. 4'-dichlorobenzophenone with N-isobutyl-Bz-2.

       4-dimethyl-a- (p-chlorophenyl) indole condensed, then in the condensation product obtained in this way, the chlorine atoms in the 4- and 4'-positions are reacted with p-phenetidine and the compound thus obtained with a sulfating agent treated.



  <I> Example: </I> 25 parts by weight of 4.4'-dichlorobenzophenone are combined with 31 parts by weight of N-isobutyl-Bz-2. 4-dimethyl-a (p-chlorophenyl) indole condensed in the presence of 20 parts by weight of phosphorogychloride by boiling in 100 parts by weight of toluene for several hours.

    After distilling off the toluene and the phosphorogychloride still present: the condensation product melted with 60 parts by weight of p-phenetidine at 120 for 4 hours.

   After the melt has cooled, the excess p-phenetidine is removed by stirring with dilute hydrochloric acid, in which the blue basic dye is insoluble, and the latter is sulfated with sulfuric acid after drying. In this way, an acidic dye of the following constitution is obtained:
EMI0002.0001
    which, as sodium salt, dyes wool and silk in bright greenish blue tones, which are characterized by excellent lightfastness and a particularly beautiful evening color.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines sauren Triphenylmethanfarbstoffes, dadurch ge kennzeichnet, dass man 4.4'-Dichlorbenzo- phenon mit N-Isobutyl-Bz-2.4-dimethyl-a- (p-chlorphenyl)-indol kondensiert, dann in dem so erhaltenen Kondensationsprodukt die in 4- und 4'-Stellung befindlichen Chloratome mit p-Phenetidin umsetzt und die so erhal tene Verbindung mit einem sulfierenden Mit tel behandelt. PATENT CLAIM: Process for the preparation of an acidic triphenylmethane dye, characterized in that 4.4'-dichlorobenzophenone is condensed with N-isobutyl-Bz-2.4-dimethyl-a- (p-chlorophenyl) indole, then in the condensation product thus obtained Reacts chlorine atoms in the 4- and 4'-positions with p-phenetidine and treats the compound thus obtained with a sulfating agent. Der so erhältliche, zwei Sulfogruppen ent haltende Farbstoff färbt als Natriumsalz Wolle und Seide in leuchtend grünstiGhig- blauen Tönen, die sich .durch eine hervor ragende Lichtechtheit und besonders schöne Abendfarbe auszeichnen. UNTERANSPRÜCHE: Verfahren nach Patentanspruch, dadurch gekennzeichnet, da.ss man die Konden sation in Gegenwart von Phosphoroxy- chlorid durch mehrstündiges Sieden in Toluol bewirkt. 2. The dyestuff thus obtainable, containing two sulfo groups, dyes wool and silk as a sodium salt in bright greenish-blue shades, which are characterized by excellent lightfastness and a particularly beautiful evening color. SUB-CLAIMS: Process according to patent claim, characterized in that the condensation is brought about in the presence of phosphorus oxychloride by boiling in toluene for several hours. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Umsetzung mit dem p-Phenetidin durch vierstündiges Verschmelzen bei 120 bewirkt. Process according to claim, characterized in that the reaction with the p-phenetidine is effected by fusing at 120 for four hours.
CH177133D 1932-09-29 1933-08-24 Process for the preparation of an acidic triphenylmethane dye. CH177133A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE177133X 1932-09-29
CH170094T 1933-08-24

Publications (1)

Publication Number Publication Date
CH177133A true CH177133A (en) 1935-05-15

Family

ID=25718879

Family Applications (1)

Application Number Title Priority Date Filing Date
CH177133D CH177133A (en) 1932-09-29 1933-08-24 Process for the preparation of an acidic triphenylmethane dye.

Country Status (1)

Country Link
CH (1) CH177133A (en)

Similar Documents

Publication Publication Date Title
CH177133A (en) Process for the preparation of an acidic triphenylmethane dye.
CH175897A (en) Process for the preparation of an acidic triphenylmethane dye.
CH175896A (en) Process for the preparation of an acidic triphenylmethane dye.
CH175899A (en) Process for the preparation of an acidic triphenylmethane dye.
CH175901A (en) Process for the preparation of an acidic triphenylmethane dye.
CH175898A (en) Process for the preparation of an acidic triphenylmethane dye.
CH170094A (en) Process for the preparation of an acidic triphenyl methane dye.
CH175902A (en) Process for the preparation of an acidic triphenylmethane dye.
CH175903A (en) Process for the preparation of an acidic triphenylmethane dye.
CH159063A (en) Process for the production of a real vat dye.
CH150795A (en) Process for the preparation of a dye of the anthraquinone series.
CH177140A (en) Process for the preparation of an oxazine dye.
CH177141A (en) Process for the preparation of an oxazine dye.
CH175900A (en) Process for the preparation of an acidic triphenylmethane dye.
CH210527A (en) Process for the production of an anthraquinone derivative.
CH168023A (en) Process for the production of a new anthraquinone derivative.
CH282629A (en) Process for the preparation of an indolyl-diphenylmethane dye.
CH163898A (en) Process for the preparation of an acidic wool dye of the anthraquinone series.
CH282631A (en) Process for the preparation of an indolyl-diphenylmethane dye.
CH177139A (en) Process for the preparation of an oxazine dye.
CH150797A (en) Process for the preparation of a dye of the anthraquinone series.
CH125631A (en) Process for the production of a new sulfur dye.
CH212348A (en) Process for the preparation of an acidic triphenylmethane dye.
CH210502A (en) Process for the preparation of an acidic triphenylmethane dye.
CH256521A (en) Process for the production of a new acidic wool dye.