CH188891A - Process for the production of an indigoid dye. - Google Patents

Process for the production of an indigoid dye.

Info

Publication number
CH188891A
CH188891A CH188891DA CH188891A CH 188891 A CH188891 A CH 188891A CH 188891D A CH188891D A CH 188891DA CH 188891 A CH188891 A CH 188891A
Authority
CH
Switzerland
Prior art keywords
production
orange
oxythionaphthene
dye
pure
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 CH188891A publication Critical patent/CH188891A/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
    • C09B7/10—Bis-thionapthene indigos

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     indigoiden        Farbstoffes.       Es wurde gefunden, dass ein     indigoider          Küpenfarbatoff    hergestellt werden kann, wenn  man     6-Methoxyäthoxy-3-oxythioiiaphtheti    mit    dem     2-(p-Dimethylamino)-anil    des     6-Äthoxy-          3-oxythionaphthens    kondensiert.  



  Der erhaltene Farbstoff der Formel  
EMI0001.0009     
    stellt ein orange gefärbtes Pulver dar, das  sich in konzentrierter Schwefelsäure mit  reiner     violettblauer    Farbe löst. Er kristalli  siert aus Chlorbenzol in orangen Nadeln vom       Smp.    2741 und färbt Baumwolle aus gelber       Küpe    in kräftigen echten und reinen orangen  Tönen.  



  <I>Beispiel:</I>  224 Teile     6-Methoxyäthoxy-3-oxythionaph-          then    und 326 Teile     2-(p-Dimethylamino)-anil     des     6-Äthoxy-3-oxythionaphthens    werden in    4000 Teilen Alkohol zum Sieden erhitzt.  Nach beendeter Kondensation wird der Farb  stoff filtriert, gewaschen und getrocknet.



  Process for the production of an indigoid dye. It has been found that an indigoid vat color can be produced if 6-methoxyethoxy-3-oxythioiiaphtheti is condensed with the 2- (p-dimethylamino) anil of 6-ethoxy-3-oxythionaphthene.



  The obtained dye of the formula
EMI0001.0009
    represents an orange colored powder that dissolves in concentrated sulfuric acid with a pure violet-blue color. It crystallizes from chlorobenzene in orange needles with a melting point of 2741 and dyes cotton from a yellow vat in strong, genuine and pure orange tones.



  <I> Example: </I> 224 parts of 6-methoxy-3-oxythionaphthene and 326 parts of 2- (p-dimethylamino) -anil of 6-ethoxy-3-oxythionaphthene are heated to the boil in 4000 parts of alcohol. When the condensation has ended, the dye is filtered, washed and dried.

Claims (1)

PATENTANSPRUOH: Verfahren zur Herstellung eines indigoiden Küpenfarbstoffes, dadurch gekennzeichnet, dass man 6-Methoxyäthoxy-3-oxythionaphthen mit dem 2-(p-Dimethylamino)-anil des 6- Äthoxy-3-oxythionaphthens kondensiert. Der erhaltene Farbstoff der Formel EMI0001.0025 stellt ein orange gefärbtes Pulver dar, das sich in konzentrierter Schwefelsäure mit reiner violettblauer Farbe löst. PATENT APPLICATION: Process for the production of an indigoid vat dye, characterized in that 6-methoxyethoxy-3-oxythionaphthene is condensed with the 2- (p-dimethylamino) -anil of 6-ethoxy-3-oxythionaphthene. The obtained dye of the formula EMI0001.0025 represents an orange colored powder that dissolves in concentrated sulfuric acid with a pure violet-blue color. Er kristalli siert aus Chlorbenzol in orangen Nadeln vom Smp. 2740 und färbt Baumwolle aus gelber Küpe in kräftigen, echten und reinen orangen Tönen. It crystallizes from chlorobenzene in orange needles with a melting point of 2740 and dyes cotton from a yellow vat in strong, genuine and pure orange tones.
CH188891D 1935-12-31 1935-12-31 Process for the production of an indigoid dye. CH188891A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH188891A true CH188891A (en) 1937-01-31

Family

ID=4435924

Family Applications (1)

Application Number Title Priority Date Filing Date
CH188891D CH188891A (en) 1935-12-31 1935-12-31 Process for the production of an indigoid dye.

Country Status (1)

Country Link
CH (1) CH188891A (en)

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