CH282628A - Process for the preparation of an indolyl-diphenylmethane dye. - Google Patents

Process for the preparation of an indolyl-diphenylmethane dye.

Info

Publication number
CH282628A
CH282628A CH282628DA CH282628A CH 282628 A CH282628 A CH 282628A CH 282628D A CH282628D A CH 282628DA CH 282628 A CH282628 A CH 282628A
Authority
CH
Switzerland
Prior art keywords
indolyl
dye
preparation
condensed
diphenylmethane dye
Prior art date
Application number
Other languages
German (de)
Inventor
Michael Dr Erlenbach
Adolf Dr Sieglitz
Original Assignee
Michael Dr Erlenbach
Adolf Dr Sieglitz
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 Michael Dr Erlenbach, Adolf Dr Sieglitz filed Critical Michael Dr Erlenbach
Publication of CH282628A publication Critical patent/CH282628A/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
    • C09B11/26—Triarylmethane dyes in which at least one of the aromatic nuclei is heterocyclic

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     Indolyl-diphenylmethanfarbstoffes.       Gegenstand des vorliegenden Zusatzpaten  tes ist ein Verfahren zur Herstellung eines       Indolyl-diphenylmethanfarbstoffes,    welches  dadurch     gekennzeichnet    ist, dass man     4,4'-Di-          chlorbenzophenon-3,3'-disulfosäure    mit     1-Me-          thyl-2-phenylindol    in etwa molekularem Ver  hältnis kondensiert und das erhaltene Konden  sationsprodukt mit einem Überschuss von     o-To-          luidin    umsetzt.  



  <I>Beispiel:</I>  Man kondensiert 35 Gewichtsteile     4,4'-di-          chlorbenzophenon-3,3'-disulfosaures    Natrium  mit 13,5 Gewichtsteilen     1-Methyl-2-phenyl-          indol    in 20     Ihiger    Schwefelsäure durch     20stün-          diges    Rühren bei 60  C, saugt das rote     Zwi-          sehenprodukt    ab und verschmilzt mit 100 Ge  wichtsteilen     o-Toluidin    3 Stunden bei 100  C.  Die überschüssige Base entfernt man durch  Extraktion mit verdünnter Salzsäure, löst den  Farbstoff in verdünnter     Sodalösung    und salzt  mit Kochsalz aus.  



  Das so erhaltene Produkt stellt ein violett    glänzendes Pulver dar, das Wolle aus neutra  lem oder saurem Bade in sehr egalen rot  stichig blauen Tönen färbt, die sich durch  bemerkenswerte Klarheit und eine sehr gute  Lichtechtheit auszeichnen.



  Process for the preparation of an indolyl-diphenylmethane dye. The subject of the present additional patent is a process for the production of an indolyl-diphenylmethane dye, which is characterized in that 4,4'-dichlorobenzophenone-3,3'-disulfonic acid with 1-methyl-2-phenylindole is approximately molecular Ratio condensed and the condensation product obtained is reacted with an excess of o-toluidine.



  <I> Example: </I> 35 parts by weight of 4,4'-dichlorobenzophenone-3,3'-disulfonic acid sodium are condensed with 13.5 parts by weight of 1-methyl-2-phenyl-indole in 20 Ihiger sulfuric acid through 20 hours Stirring at 60 ° C., sucks the red intermediate product off and fuses with 100 parts by weight of o-toluidine for 3 hours at 100 ° C. The excess base is removed by extraction with dilute hydrochloric acid, the dye is dissolved in dilute soda solution and salted with sodium chloride .



  The product obtained in this way is a shimmering violet powder that dyes wool from neutral or acidic baths in very even, red, blue tones, which are characterized by remarkable clarity and very good lightfastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Indolyl- diphenylmethanfarbstoffes, dadurch gekenn zeichnet, dass man 4,4'-Dichlorbenzophenon- 3,3'-disLlfosäure mit 1-Methyl-2-phenylindol in etwa molekularem Verhältnis kondensiert und das erhaltene Kondensationsprodukt mit einem Überschuss von o-Toluidin umsetzt. Das so erhaltene Produkt stellt ein violett glänzendes Pulver dar, das Wolle aus neutra lem oder saurem Bade in sehr egalen rot stichig blauen Tönen färbt, die sich durch bemerkenswerte Klarheit und eine sehr gute Lichtechheit auszeichnen. PATENT CLAIM: Process for the production of an indolyl diphenylmethane dye, characterized in that 4,4'-dichlorobenzophenone-3,3'-disLfosäure is condensed with 1-methyl-2-phenylindole in an approximately molecular ratio and the condensation product obtained is condensed with an excess of converts o-toluidine. The product obtained in this way is a shimmering violet powder that dyes wool from neutral or acidic baths in very even red, blue tones, which are characterized by remarkable clarity and very good lightfastness. Der Farbstoff hat die folgende Zusammen setzung EMI0001.0030 The dye has the following composition EMI0001.0030
CH282628D 1949-04-23 1949-06-24 Process for the preparation of an indolyl-diphenylmethane dye. CH282628A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE282628X 1949-04-23
DE10649X 1949-06-01
CH278943T 1949-06-24

Publications (1)

Publication Number Publication Date
CH282628A true CH282628A (en) 1952-04-30

Family

ID=27178133

Family Applications (1)

Application Number Title Priority Date Filing Date
CH282628D CH282628A (en) 1949-04-23 1949-06-24 Process for the preparation of an indolyl-diphenylmethane dye.

Country Status (1)

Country Link
CH (1) CH282628A (en)

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