CH135126A - 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.

Info

Publication number
CH135126A
CH135126A CH135126DA CH135126A CH 135126 A CH135126 A CH 135126A CH 135126D A CH135126D A CH 135126DA CH 135126 A CH135126 A CH 135126A
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 CH135126A publication Critical patent/CH135126A/en

Links

Landscapes

  • Indole Compounds (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines violetten     Küpenfarbstoffes     der     2-Thionaphten-2'-Indolindigoreihe.   <B>.</B>    Gegenstand der vorliegenden Erfindung  ist ein Verfahren zur Darstellung eines vio  letten     Küpenfarbstoffes    der     2-Thionaphten-          2'-indolindigoi-eihe    der Formel:

    
EMI0001.0006     
         dureh    Kondensation von     5-chlor-7-methyl-3-          oxy-l-thionaphteii    mit     einerreaktionsfähigen        5-          chloi--4.7-dimethylisatioti-a-verbindung.        Trok-          ken    ist der Farbstoff ein violett gefärbtes  Pulver, das in konzentrierter Schwefelsäure  blaugrün löslich ist. Mit Natronlauge und       Hydrosulfit    gibt er eine     olive        Küpe,    aus der  die Faser echt violett angefärbt wird.  



  <I>Beispiel:</I>  21 Gewichtsteile     5-Chlor-4.7-dimethylisa-          tin    werden in etwa 200 Gewichtsteilen Chlor-         benzol    suspendiert und nach Zusatz von 22  Gewichtsteilen     Phosphorpentachlorid    erhitzt.  Die entstandene Lösung des     5-Chlor-4.7-di-          methylisatin-a-chlorids    wird in eine Lösung  von 20     Gewichtsteilen        5-Chloi--7-niethyl-3-          oxy-l-thioi)aphteD    in 200 Gewichtsteilen Chlor  benzol einlaufen gelassen, wobei sich der  Farbstoff sofort abscheidet. Nach kurzem  Erwärmen auf<B>80-900 0</B> wird der Farb  stoff filtriert, mit Alkohol gewaschen und ge  trocknet.



  Process for the preparation of a violet vat dye of the 2-thionaphthene-2'-indolindigo series. <B>. </B> The present invention relates to a process for the preparation of a violet vat dye of the 2-thionaphthene-2'-indolindigoi series of the formula:

    
EMI0001.0006
         by condensation of 5-chloro-7-methyl-3-oxy-l-thionaphteii with a reactive 5-chloi - 4.7-dimethylisatioti-a-compound. When dry, the dye is a violet colored powder that is soluble in concentrated sulfuric acid in a blue-green color. With caustic soda and hydrosulphite, he gives an olive vat from which the fiber is dyed really purple.



  <I> Example: </I> 21 parts by weight of 5-chloro-4,7-dimethylizine are suspended in about 200 parts by weight of chlorobenzene and heated after adding 22 parts by weight of phosphorus pentachloride. The resulting solution of 5-chloro-4,7-dimethylisatin-a-chloride is allowed to run into a solution of 20 parts by weight of 5-chloro-7-niethyl-3-oxy-1-thioi) aphteD in 200 parts by weight of chlorobenzene, the dye separating out immediately. After briefly warming to <B> 80-900 0 </B>, the dye is filtered, washed with alcohol and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Küpenfarbstoffes der 2-Thionaphten-2'-indol- indigoreihe der Formel: EMI0001.0031 dadurch gekennzeichnet, däss man 5-Chlor-7- methyl-3-oxy-l-thioiiaphten mit einer reak tionsfähigen 5-Chlor-4.7-dimethyl-isatin-a- verbindung kondensiert. PATENT CLAIM: Process for the preparation of a new vat dye of the 2-thionaphthene-2'-indole indigo series of the formula: EMI0001.0031 characterized in that 5-chloro-7-methyl-3-oxy-1-thioiiaphtene is condensed with a reactive 5-chloro-4,7-dimethyl-isatin-a compound. Trocken ist der Farbstoff ein violettes Pulver, das in kon zentrierter Schwefelsäure mit blaugrüner Farbe löslich ist; mit Natronlauge und Hydro- sulfit bildet der eine olive Küpe, aus der die Faser echt violett gefärbt wird. When dry, the dye is a purple powder that is soluble in concentrated sulfuric acid with a blue-green color; with caustic soda and hydrosulfite, it forms an olive vat from which the fiber is dyed really purple.
CH135126D 1927-01-03 1927-12-30 Process for the production of a violet vat dye of the 2-thionaphthene-2'-indolindigo series. CH135126A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE135126X 1927-01-03
CH132316T 1927-12-30

Publications (1)

Publication Number Publication Date
CH135126A true CH135126A (en) 1929-08-31

Family

ID=25711834

Family Applications (1)

Application Number Title Priority Date Filing Date
CH135126D CH135126A (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) CH135126A (en)

Similar Documents

Publication Publication Date Title
CH135126A (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.
CH135127A (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.
CH135125A (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.
CH135123A (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.
CH135151A (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.
CH135130A (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.
CH135150A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135118A (en) Process for the preparation 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.
CH135120A (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.
CH135137A (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.
CH135142A (en) Process for the production of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.
CH135131A (en) Process for the production 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.
CH135129A (en) Process for the production 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.
CH135135A (en) Process for the preparation of a violet vat dye of the 2-thionaphthene-2&#39;-indolindigo series.