CH135133A - Process for the production of a violet vat dye of the 2-thionaphthene-2'-indolindigo series. - Google Patents

Process for the production of a violet vat dye of the 2-thionaphthene-2'-indolindigo series.

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Publication number
CH135133A
CH135133A CH135133DA CH135133A CH 135133 A CH135133 A CH 135133A CH 135133D A CH135133D A CH 135133DA CH 135133 A CH135133 A CH 135133A
Authority
CH
Switzerland
Prior art keywords
thionaphthene
series
indolindigo
production
dye
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 CH135133A publication Critical patent/CH135133A/en

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Description

  

  Verfahren zur Herstellung eines violetten     Kirpenfarbstoä%s    der       2-Tiiionapiiten-2'-indolindigoreihe.       Gegenstand der vorliegenden Erfindung  ist ein Verfahren zur Darstellung     eines    vio  letten     Küpenfarbstoffes    der     2-Thionapliten-2'-          indolindigoreihe    der Formel:

    
EMI0001.0007     
    den man durch Kondensation von     4-DIethyl-          6-chlor--oxy-l-thionaphten    mit einer reak  tionsfähigen 4. 5 .     7-Trimethylisatin-a-verbin-          dung        erhält.    Trocken ist der     Farbstoff    ein       violettrot    gefärbtes Pulver, das in konzen  trierter     Schwefelsäure        blaugrün    löslich ist.       i51it    Natronlauge und     Hydrosulfit    gibt er eine  gelbe     Küpe,    aus der die Faser echt     violettrot     angefärbt wird.

      <I>Beispiel:</I>    19 Gewichtsteile 4 . 5 .     7-Trimethylisatin     weiden in etwa 200 Gewichtsteilen Chlor  benzol suspendiert und nach     Zusatz    von 22  Gewichtsteilen     Phosphorpentachlorid    erhitzt.  Die entstandene Lösung des 4.     b.7-Trimethyl-          isatiri-a-chlorids    wird in eine Lösung von 20  Gewichtsteilen     4-I4lethyl-6-chlor-3-ogy-l-thio-          naphteti    in 200 Gewichtsteile Chlorbenzol  einlaufen gelassen, wobei sich der Farbstoff  sofort abscheidet. Nach kurzem Erwärmen  auf<B>80-90"</B> wird der     Farbstoff    filtriert, mit  Alkohol gewaschen und getrocknet.



  Process for the production of a purple cherry color of the 2-Tiiionapiiten-2'-indolindigo series. The present invention relates to a process for the preparation of a violet vat dye of the 2-thionaplite-2'-indolindigo series of the formula:

    
EMI0001.0007
    which is obtained by condensation of 4-DIethyl-6-chloro-oxy-l-thionaphthene with a reactive 4. 5. 7-trimethylisatin-α-compound is obtained. When dry, the dye is a violet-red colored powder that is soluble in concentrated sulfuric acid in a blue-green color. With caustic soda and hydrosulphite, he gives a yellow vat from which the fibers are stained real purple-red.

      <I> Example: </I> 19 parts by weight 4. 5. 7-Trimethylisatin is suspended in about 200 parts by weight of chlorine benzene and heated after adding 22 parts by weight of phosphorus pentachloride. The resulting solution of 4. b.7-trimethyl-isatiri-a-chloride is allowed to run into a solution of 20 parts by weight of 4-14lethyl-6-chloro-3-ogy-1-thio-naphtheti in 200 parts by weight of chlorobenzene, whereby the dye separates out immediately. After briefly heating to <B> 80-90 "</B>, the dye is filtered, washed with alcohol and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Küpenfarbstoffes der 2-Thionaphten-2'-indolin- digoreihe der Formel: EMI0002.0001 dadurch gekennzeichnet, dass man 4-Methyl- 6-chlor-3-ogyy-l-thionaphten mit einer reak tionsfähigen 4-5-7-Trimethylisatin-a-verbin- dung kondensiert. PATENT CLAIM: Process for the preparation of a new vat dye of the 2-thionaphthene-2'-indoline digo series of the formula: EMI0002.0001 characterized in that 4-methyl-6-chloro-3-ogyy-1-thionaphthene is condensed with a reactive 4-5-7-trimethylisatin-α compound. Trocken ist der Farbstoff ein violettrotes Pulver, das i'n konzentrierter Schwefelsäure mit blaugrüner Farbe löslich ist; mit Natronlauge und Hydrosulfit bildet er eine gelbe Küpe, aus der die Faser echt violettrot angefärbt wird. When dry, the dye is a violet-red powder that is soluble in concentrated sulfuric acid with a blue-green color; with caustic soda and hydrosulphite, it forms a yellow vat from which the fiber is dyed really purple-red.
CH135133D 1927-01-03 1927-12-30 Process for the production of a violet vat dye of the 2-thionaphthene-2'-indolindigo series. CH135133A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE135133X 1927-01-03
CH132316T 1927-12-30

Publications (1)

Publication Number Publication Date
CH135133A true CH135133A (en) 1929-08-31

Family

ID=25711841

Family Applications (1)

Application Number Title Priority Date Filing Date
CH135133D CH135133A (en) 1927-01-03 1927-12-30 Process for the production of a violet vat dye of the 2-thionaphthene-2'-indolindigo series.

Country Status (1)

Country Link
CH (1) CH135133A (en)

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