CH190632A - Process for the production of an indigoid dye. - Google Patents

Process for the production of an indigoid dye.

Info

Publication number
CH190632A
CH190632A CH190632DA CH190632A CH 190632 A CH190632 A CH 190632A CH 190632D A CH190632D A CH 190632DA CH 190632 A CH190632 A CH 190632A
Authority
CH
Switzerland
Prior art keywords
production
methoxyethoxyisatin
blue
dye
indigoid dye
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH190632A publication Critical patent/CH190632A/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
    • C09B7/00—Indigoid dyes
    • C09B7/08—Other indole-indigos

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 188891.    Verfahren zur Herstellung eines     indigoiden        Farbstoffes.       Es wurde gefunden, dass ein     indigoider          Küpenfarbstoff    hergestellt werden kann, wenn  man chloriertes     5-Methoxyäthoxyisatin,    das  durch Behandlung von     5-Methoxyäthoxyisatin     mit chlorierenden Mitteln erhalten wurde  und zwei Atome Chlor enthält, in Form  seines     Alpha-Chlorids    mit     4-Methoxy-l-oxy-          naphthalin    kondensiert.  



  Der erhaltene Farbstoff stellt ein blau  gefärbtes Pulver dar, das sich in konzen  trierter Schwefelsäure mit grüner Farbe löst.  Er kristallisiert aus Chlorbenzol in blauen  Nadeln vom     Smp.    256   und färbt Baumwolle  aus gelber     Küpe    in echten und reinen grün  blauen Tönen.  



  <I>Beispiel:</I>  290 Teile chloriertes     5-Methoxyäthoxy-          isatin,    das durch Behandlung von     5-Methoxy-          äthoxyisatin    mit     Sulfurylchlorid    erhalten  wurde und zwei Atome Chlor enthält, werden  in üblicher Weise in das     2-Chlorid    überge  führt und bei 40-50   mit 174 Teilen 4  Methoxy-l-oxynaphthalin in 13000 Teilen    Chlorbenzol verrührt. Nach beendeter Kon  densation wird der Farbstoff filtriert, ge  waschen und getrocknet.



      Additional patent to main patent No. 188891. Process for the production of an indigoid dye. It has been found that an indigoid vat dye can be produced if chlorinated 5-methoxyethoxyisatin, which was obtained by treating 5-methoxyethoxyisatin with chlorinating agents and contains two atoms of chlorine, in the form of its alpha chloride with 4-methoxy-l- oxynaphthalene condensed.



  The dye obtained is a blue colored powder which dissolves in concentrated sulfuric acid with a green color. It crystallizes from chlorobenzene in blue needles with a melting point of 256 and dyes cotton from a yellow vat in real and pure green-blue tones.



  <I> Example: </I> 290 parts of chlorinated 5-methoxyethoxyisatin, which was obtained by treating 5-methoxyethoxyisatin with sulfuryl chloride and contains two atoms of chlorine, are converted into the 2-chloride in the usual way and with 40-50 stirred with 174 parts of 4 methoxy-l-oxynaphthalene in 13,000 parts of chlorobenzene. When the condensation has ended, the dye is filtered, washed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines indigoiden Küpenfarbstoffes, dadurch gekennzeichnet, dass man chloriertes 5-Methoxyäthoxyisatin, das durch Behandlung von 5-Methoxyäthoxyisatin mit chlorierenden Mitteln erhalten wurde und zwei Atome Chlor enthält, in Form seines Alpha-Chlorids mit 4-Methoxy-l-oxynaphtha- lin kondensiert. Der erhaltene Farbstoff stellt ein blau gefärbtes Pulver dar, das sich in konzen trierter Schwefelsäure mit grüner Farbe löst. PATENT CLAIM: A process for the production of an indigoid vat dye, characterized in that chlorinated 5-methoxyethoxyisatin, which was obtained by treating 5-methoxyethoxyisatin with chlorinating agents and contains two atoms of chlorine, is mixed with 4-methoxy-1 in the form of its alpha chloride oxynaphthalene condensed. The dye obtained is a blue colored powder which dissolves in concentrated sulfuric acid with a green color. Er kristallisiert aus Chlorbenzol in blauen Nadeln vom Smp. 256 und färbt Baumwolle aus gelber güpe in echten und reinen grün-' blauen Tönen. It crystallizes from chlorobenzene in blue needles with a melting point of 256 and dyes cotton from yellow güpe in real and pure green-blue tones.
CH190632D 1935-12-31 1935-12-31 Process for the production of an indigoid dye. CH190632A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH190632T 1935-12-31
CH188891T 1935-12-31

Publications (1)

Publication Number Publication Date
CH190632A true CH190632A (en) 1937-04-30

Family

ID=25721707

Family Applications (1)

Application Number Title Priority Date Filing Date
CH190632D CH190632A (en) 1935-12-31 1935-12-31 Process for the production of an indigoid dye.

Country Status (1)

Country Link
CH (1) CH190632A (en)

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