CH135117A - 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
CH135117A
CH135117A CH135117DA CH135117A CH 135117 A CH135117 A CH 135117A CH 135117D A CH135117D A CH 135117DA CH 135117 A CH135117 A CH 135117A
Authority
CH
Switzerland
Prior art keywords
sep
thionaphthene
series
indolindigo
production
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 CH135117A publication Critical patent/CH135117A/en

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Description

  

  Verfahren zur Herstellung eines violetten     Küpenfarbstoffes    der     2-Thionaphten-          2'-indolindigoreibe.       Gegenstand der vorliegenden Erfindung  ist ein Verfahren zur Darstellung eines     vio-          Ir#tten        Küpenfarbstoffes    Ader     2-Thiona.phien-          2'-indolindigoreihe    der Formel:

    
EMI0001.0009     
         durüh    Kondensation von     5-Chlor-3-c,-xy-l-          thionaphten    mit einer     reakti-unsfähigen        5-          Brom-7-methylisatin-a-verbindung.    Trocken  ist der Farbstoff ein violett     cefärbies    Pulver,  das in     konzentrierter'Schwefelsäure    blaugrün  löslich ist. Mit Natronlauge und     Hydrosulfit,          bt    er eine     o-elbolive        Küpe,    aus der die Fa  ser echt violett angefärbt wird.  



  <I>Beispiel:</I>  24     #Gewichtsteile        5-Bro!m-7-methylisatin     werden in etwa 200 Gewichtsteilen Chlor-         benzol    suspendiert und nach Zusatz von 22  Gewichtsteilen     Phosphorpentachlo-rid    erhitzt.

    Die entstandene Lösung des     5-Brom-7-me-          thylisatin-a--chlari,ds    wird in eine Lösung von  <B>1.8,5</B> Gewichtsteilen     5-Cli-lo-r-3-oxy-l-thio-          napliten    in 200 Gewichtsteilen     CI-ilorbenzol     einlaufen gelassen, wobei sich Ader Farbstoff  sofort abscheidet.     Nlach    kurzem Erwärmen  auf<B>80</B> bis<B>90 '</B> wird der Farbstoff filtriert,  mit     Alko-hol    gewaschen und getrocknet.



  Process for the production of a violet vat dye of 2-thionaphthene-2'-indolindigo grater. The present invention relates to a process for the preparation of a violet vat dye Ader 2-Thiona.phien- 2'-indolindigo series of the formula:

    
EMI0001.0009
         through condensation of 5-chloro-3-c, -xy-l-thionaphthene with a reactive 5-bromo-7-methylisatin-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 practices an o-elbolive vat from which the fiber is stained real purple.



  <I> Example: </I> 24 parts by weight of 5-bromo-7-methylisatin are suspended in about 200 parts by weight of chlorobenzene and, after adding 22 parts by weight of phosphorus pentachloride, heated.

    The resulting solution of the 5-bromo-7-methylisatin-a - chlari, ds is in a solution of <B> 1.8.5 </B> parts by weight of 5-Cli-lo-r-3-oxy-l- thio-napliten allowed to run in 200 parts by weight of CI-ilorbenzene, the dye immediately separating out. After briefly heating to <B> 80 </B> to <B> 90 '</B>, the dye is filtered, washed with alcohol and dried.

Claims (1)

<B>PATENTANSPRUCH:</B> EMI0001.0033 -#Terfahren <SEP> zur <SEP> Darstellung <SEP> eines <SEP> neuen <tb> Küpenfarbstoffes <SEP> der <SEP> 'z)-Thiona.phten-2'-in dolindigoreihe <SEP> der#Farmel: EMI0001.0034 dadurch gekennzeichnet, dass man 3-Chlor-3- oxy-l-thionaphten mit einer reakti#o..nsfähi- Gleil 5-Brom-7-methylisatin-d-verbin#dung kon densiert. Trocken ist der Farbstoff ein vio lettes Pulver, das in konzentrierter Seliwe- felsäure mit bl,auorüner Farbe lösliüli ist. <B> PATENT CLAIM: </B> EMI0001.0033 - # Move <SEP> to <SEP> display <SEP> of a <SEP> new one <tb> vat dye <SEP> of <SEP> 'z) -Thiona.phten-2'-in dolindigo series <SEP> of # Farmel: EMI0001.0034 characterized in that 3-chloro-3-oxy-1-thionaphthene is condensed with a reactive 5-bromo-7-methylisatin-d compound. When dry, the dye is a violet powder that is soluble in concentrated seliweufic acid with a blue, auor-green color. Mit Natronlauge und Hydrosulfit bildet er eine gelbolive KüPe, aus der die Faser echt violett anfärbt. With caustic soda and hydrosulphite, it forms a yellow-olive vat from which the fiber turns a real purple color.
CH135117D 1927-11-05 1927-12-30 Process for the production of a violet vat dye of the 2-thionaphthene-2'-indolindigo series. CH135117A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE135117X 1927-11-05
CH132316T 1927-12-30

Publications (1)

Publication Number Publication Date
CH135117A true CH135117A (en) 1929-08-31

Family

ID=25711825

Family Applications (1)

Application Number Title Priority Date Filing Date
CH135117D CH135117A (en) 1927-11-05 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) CH135117A (en)

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