CH135150A - Process for the preparation of a violet vat dye of the 2-thionaphthene-2'-indolindigo series. - Google Patents

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

Info

Publication number
CH135150A
CH135150A CH135150DA CH135150A CH 135150 A CH135150 A CH 135150A CH 135150D A CH135150D A CH 135150DA CH 135150 A CH135150 A CH 135150A
Authority
CH
Switzerland
Prior art keywords
thionaphthene
preparation
series
indolindigo
violet
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 CH135150A publication Critical patent/CH135150A/en

Links

Landscapes

  • Coloring (AREA)

Description

  

  Verfahren zur Darstellung eines violetten     Küpenfarbstoffes    der     2-Thionaphten-          2'-in        dolindigor        eihe.       Gegenstand der vorliegenden Erfindung  ist ein Verfahren zur Darstellung eines vio  letten     Küpenfarbstoffes    der     2-Thionaphten-          2'-indölindigoreihe    der Formel:

    
EMI0001.0009     
    den man durch Kondensation von 5. 6.     7-          Trichlor    - 3 -     oxy    -1-     thionaphten    mit einer  reaktionsfähigen     5-Chlor-4.7-dimethylisatin-          a-verbindung    erhält. Trocken ist der Farb  stoff ein     violettblau    gefärbtes Pulver,     da.s    in  konzentrierter Schwefelsäure blaugrün lös  lich ist. Mit Natronlauge und     Hydrosulfit     gibt er eine gelbe     Küpe,    aus der die Faser  echt     violettblan    angefärbt wird.

      <I>Beispiel</I>    21, Gewichtsteile     5-Chlor-4.7-dimethylisatin     werden in etwa 200 Gewichtsteilen Chlor  benzol suspendiert     und    nach     Zusatz    von  22 Gewichtsteilen     Phosphorpentachlorid    er  hitzt. Die entstandene     Lösung    des     5-Chlor-4.7-          dimethylisatin-a-chlorids        wird    in     eine        Lösung     von 25,3 Gewichtsteilen 5 . 6 . 7 -     Trichlor-          3-oxy-l-thionaphten    in 200 Gewichtsteilen  Chlorbenzol einlaufen gelassen, wobei sich  der Farbstoff sofort abscheidet.

   Nach kur  zem Erwärmen auf 80 bis 90   wird der  Farbstoff     filtriert,    mit     Alkohol    gewaschen  und getrocknet.



  Process for the preparation of a violet vat dye of the 2-thionaphtene-2'-in dolindigor series. The present invention relates to a process for the preparation of a violet vat dye of the 2-thionaphthene-2'-indölindigo series of the formula:

    
EMI0001.0009
    which is obtained by condensation of 5, 6, 7-trichloro-3-oxy-1-thionaphthene with a reactive 5-chloro-4,7-dimethylisatin-a compound. When dry, the dye is a violet-blue colored powder because it is blue-green soluble in concentrated sulfuric acid. With caustic soda and hydrosulphite, he gives a yellow vat from which the fibers are dyed really purple-blue.

      <I> Example </I> 21 parts by weight of 5-chloro-4,7-dimethylisatin are suspended in about 200 parts by weight of chlorobenzene and, after adding 22 parts by weight of phosphorus pentachloride, it is heated. The resulting solution of 5-chloro-4,7-dimethylisatin-a-chloride is converted into a solution of 25.3 parts by weight of 5. 6th 7 - Trichloro-3-oxy-l-thionaphthene in 200 parts by weight of chlorobenzene, the dye separating out immediately.

   After brief heating to 80 to 90, the dye is filtered, washed with alcohol and dried.

Claims (1)

PATENTANSPRUCH Verfahren zur Darstellung eines neuen Küpenfarbstoifes der 2-Thionaphten-2'-indol- indigoreihe der Formel: EMI0002.0001 dadurch gekennzeichnet, dass man 5.6.7 Trichldr - 3@- axy @ l - thionaphten mit einer reaktionsfähigen 5-Chlor-4.7-dimethylisatin- a-verbindung kondensiert. Trocken ist der Farbstoff ein violettblaues Pulver, das in kon zentrierter Schwefelsäure mit blaugrüner Farbe löslich ist; PATENT CLAIM Process for the preparation of a new vat dye of the 2-thionaphthene-2'-indole indigo series of the formula: EMI0002.0001 characterized in that 5.6.7 Trichldr - 3 @ - axy @ l - thionaphtene is condensed with a reactive 5-chloro-4,7-dimethylisatin-a compound. When dry, the dye is a violet-blue powder that is soluble in concentrated sulfuric acid with a blue-green color; mit Natronlauge und Hydrosulfit bildet er eine gelbe Küpe, -aus der die Faser echt violettblau angefärbt wird.. with caustic soda and hydrosulphite it forms a yellow vat, from which the fiber is dyed real violet blue.
CH135150D 1927-01-03 1927-12-30 Process for the preparation of a violet vat dye of the 2-thionaphthene-2'-indolindigo series. CH135150A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE135150X 1927-01-03
CH132316T 1927-12-30

Publications (1)

Publication Number Publication Date
CH135150A true CH135150A (en) 1929-08-31

Family

ID=25711858

Family Applications (1)

Application Number Title Priority Date Filing Date
CH135150D CH135150A (en) 1927-01-03 1927-12-30 Process for the preparation of a violet vat dye of the 2-thionaphthene-2'-indolindigo series.

Country Status (1)

Country Link
CH (1) CH135150A (en)

Similar Documents

Publication Publication Date Title
CH135150A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135149A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135151A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135136A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135140A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135141A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135123A (en) Process for the production of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135139A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135130A (en) Process for the production of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135143A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135126A (en) Process for the production of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135138A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135137A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135125A (en) Process for the production of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135120A (en) Process for the production of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135119A (en) Process for the production of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135124A (en) Process for the production of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135142A (en) Process for the production of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135133A (en) Process for the production of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135121A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135135A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135148A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135147A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135145A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135129A (en) Process for the production of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.