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CH308475A - Process for the preparation of a triphenylmethane dye. - Google Patents

Process for the preparation of a triphenylmethane dye.

Info

Publication number
CH308475A
CH308475A CH308475DA CH308475A CH 308475 A CH308475 A CH 308475A CH 308475D A CH308475D A CH 308475DA CH 308475 A CH308475 A CH 308475A
Authority
CH
Switzerland
Prior art keywords
triphenylmethane dye
dye
preparation
phosphorus
reaction
Prior art date
Application number
Other languages
German (de)
Inventor
Farbwerke Hoechst Akt Bruening
Original Assignee
Hoechst 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 Hoechst Ag filed Critical Hoechst Ag
Publication of CH308475A publication Critical patent/CH308475A/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
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/10—Amino derivatives of triarylmethanes
    • C09B11/24—Phthaleins containing amino groups ; Phthalanes; Fluoranes; Phthalides; Rhodamine dyes; Phthaleins having heterocyclic aryl rings; Lactone or lactame forms of triarylmethane dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 302913.    Verfahren zur Herstellung eines     Triphenylmethanfarbstoffes.       Gegenstand des vorliegenden Zusatzpaten  tes ist ein Verfahren zur Herstellung eines       Triphenylmethanfarbstoffes,    welches dadurch  gekennzeichnet ist, dass man auf das durch  Umsetzung von     Resorcin-sulfophthalein    der  folgenden Formel:

    
EMI0001.0004     
    mit. einem Chlorderivat des Phosphors erhal  tene innere Salz der     3,6-Dichlor-9-phenyl-          xanthydrol-2'-sulfosäure        1-Amino-2-methoxy-          benzol    einwirken lässt und den erhaltenen  Farbstoff     sulfoniert,    bis zum Eintritt von 1-2       Sulfogruppen    in das Molekül.  



  <I>Beispiel:</I>  8 Gewichtsteile des durch Umsetzung von       Resorein-sulfophthalein    mit     Phosphoroxychlo-          rid    erhaltenen innern Salzes der     3,6-Dichlor-          9-phenylxanthydrol-2'-sulfosäure    werden mit  30 Gewichtsteilen     1-Amino-2-methoxybenzol     mehrere Stunden bei 120  C verrührt. Die nach  der     Umsetzung    aus dem Reaktionsgemisch sich  abscheidenden messingglänzenden, wasser  unlöslichen Kristalle werden isoliert, getrock  net und durch Behandeln mit konzentrierter  Schwefelsäure     sulfoniert.    Der gebildete was-         serlösliche    Farbstoff wird isoliert und getrock  net.

    



  An Stelle von     Phosphoroxychlorid    kann  auch     Phosphorpentachlorid    verwendet werden.  Das so erhaltene Produkt stellt ein dunkel  gefärbtes Pulver dar, das Wolle in violetten  Tönen färbt.     s  



  <B> Additional patent </B> to main patent no. 302913. Process for the production of a triphenylmethane dye. The subject of the present additional patent is a process for the production of a triphenylmethane dye, which is characterized in that the reaction of resorcinol-sulfophthalein of the following formula is based on:

    
EMI0001.0004
    With. a chlorine derivative of phosphorus obtained inner salt of 3,6-dichloro-9-phenyl-xanthydrol-2'-sulfonic acid 1-amino-2-methoxy-benzene and sulfonated the dye obtained until 1-2 sulfo groups enter into the molecule.



  <I> Example: </I> 8 parts by weight of the inner salt of 3,6-dichloro-9-phenylxanthydrol-2'-sulfonic acid obtained by reacting resorein-sulfophthalein with phosphorus oxychloride are mixed with 30 parts by weight of 1-amino-2- methoxybenzene stirred at 120 ° C. for several hours. The shiny brass, water-insoluble crystals which separate out of the reaction mixture after the reaction are isolated, dried and sulfonated by treatment with concentrated sulfuric acid. The water-soluble dye formed is isolated and dried.

    



  Phosphorus pentachloride can also be used instead of phosphorus oxychloride. The product thus obtained is a dark-colored powder that dyes wool in purple tones. s

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Tri- phenylmethanfarbstoffes, dadurch gekenn zeichnet, dass man auf das durch Umsetzung von Resorcin-sulfophthalein der folgenden Formel EMI0001.0026 mit einem Chlorderivat des Phosphors erhal-, tene innere Salz der 3,6-Dichlor-9-phenyl- xanthydrol-2'-sulfosäure 1-Amino-2-methoxy- benzol einwirken lässt und den erhaltenen Farbstoff sulfoniert, bis zum Eintritt von 1-2 Sulfogruppen in das Molekül. PATENT CLAIM: A process for the production of a triphenylmethane dye, characterized in that the reaction of resorcinol-sulfophthalein of the following formula is used EMI0001.0026 with a chlorine derivative of phosphorus, tene inner salt of 3,6-dichloro-9-phenylxanthydrol-2'-sulfonic acid 1-amino-2-methoxybenzene is allowed to act and sulfonated the dye obtained until 1 -2 sulfo groups in the molecule. Das so erhaltene Produkt stellt ein dunkel gefärbtes Pulver dar, das Wolle in violetten Tönen färbt. The product thus obtained is a dark-colored powder that dyes wool in purple tones.
CH308475D 1950-07-20 1951-06-29 Process for the preparation of a triphenylmethane dye. CH308475A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE308475X 1950-07-20
DE90251X 1951-02-09
CH302913T 1951-06-29

Publications (1)

Publication Number Publication Date
CH308475A true CH308475A (en) 1955-07-15

Family

ID=27178280

Family Applications (1)

Application Number Title Priority Date Filing Date
CH308475D CH308475A (en) 1950-07-20 1951-06-29 Process for the preparation of a triphenylmethane dye.

Country Status (1)

Country Link
CH (1) CH308475A (en)

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