CH123688A - Process for the preparation of a vat dye of the thioindigo series. - Google Patents

Process for the preparation of a vat dye of the thioindigo series.

Info

Publication number
CH123688A
CH123688A CH123688DA CH123688A CH 123688 A CH123688 A CH 123688A CH 123688D A CH123688D A CH 123688DA CH 123688 A CH123688 A CH 123688A
Authority
CH
Switzerland
Prior art keywords
vat
dye
preparation
formula
vat 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 CH123688A publication Critical patent/CH123688A/en

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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
    • C09B7/12—Other thionaphthene indigos

Landscapes

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

Description

  

  Zusatzpatent     zum.Hauptpatent        Nr.   <B>120806.</B>    Verfahren zur Darstellung eines     Küpenfarbstoffes    der     Thloindigoreihe.       Im Hauptpatent und seinen bisherigen  Zusätzen ist ein Verfahren zur Darstellung  von     Küpenfarbstoffen    der     Thioindigoreihe        be-          schriebeu,    darin bestehend,     dass        man        2-Ami-          noperinaphtoxypenthiophen    mit einem     2.3-          Diketodihydro-thionaphtenkörper    kondensiert.  



  Es wurde     nuti    gefunden,     dass    man zu einem  derartigen grünfärbenden     Küpenfarbstoff    der  
EMI0001.0018     
  
     gelangt, wenn man ein 2-Acylamiiiopei-inapht-  
EMI0001.0019     
  
     mit einem     2.3-Diketodihydro-4.5-benzotliio-          naphtenkörper    der Formel:  
EMI0001.0022     
    worin R, einen sich bei der Kondensation  abspaltenden Rest bedeutet, kondensiert und  aus dem Kondensationsprodukt die     Acylgruppe     durch Verseifen abspaltet.  



  Trocken ist der Farbstoff ein dunkelgrünes  Pulver, in konzentrierter Schwefelsäure mit  blauer Farbe     löslieli,    er gibt mit alkalischem       Hydrosulfit    eine rötlich gefärbte     Küpe    und  färbt Baumwolle und Wolle in dieser     Küpe     in dunkelgrünen Tönen von hervorragender  Echtheit.  



  <I>Beispiel:</I>  <B>25,7</B> Teile     2-Acetylaininopenthiopheii    und  21,4 Teile     4.5-Benzo-2.3-diketodihydrothio-          naphten    werden mit 12 Teilen     wassei-freiem          Natriumacetat        und    400 Teilen     Essigsäure-          anhydrid    einige Zeit     auf        80-9011    erwärmt.      Der schon in der     Wärine    ausfallende Farb  stoff wird filtriert, gewaschen und getrocknet.  <B>Er</B> färbt in violetten Tönen.  



  Um die     Acylgruppe    abzuspalten, wird der  Farbstoff in konzentrierter Schwefelsäure ge  löst und<B>so</B> viel Wasser zugegeben,     dass    eine       501/oige    Säure entsteht. Hierauf wird einige  Zeit gekocht und der abgeschiedene Farbstoff  filtriert, gewaschen und getrocknet.  



  Mit gleichem     Ei-folge    kann man auch das       2-Benzoylamiiiopei-ii)aphtoxypenthiopheii    ver  wenden.  



  An Stelle des     4.5-Benzo-2.3-dilzetodillydi-o-          thionaphtens    kann man das     2-Dichlor-    oder       2-Dibroi.nderivat    oder ein entsprechendes     Anil     verwenden.



  Additional patent to the main patent no. <B> 120806. </B> Process for the preparation of a vat dye of the Thloindigo series. In the main patent and its previous additions, a process for the preparation of vat dyes of the thioindigo series is described, consisting in condensing 2-aminoperinaphtoxypenthiophene with a 2,3-diketodihydro-thionaphthene body.



  It has been found that such a green-colored vat dye can be used
EMI0001.0018
  
     if you get a 2-acylamiiiopei-inapht-
EMI0001.0019
  
     with a 2,3-diketodihydro-4,5-benzotliionaphthene body of the formula:
EMI0001.0022
    where R, denotes a radical which is split off during the condensation, condenses and splits off the acyl group from the condensation product by saponification.



  When dry, the dye is a dark green powder, soluble in concentrated sulfuric acid with a blue color, it gives a reddish colored vat with alkaline hydrosulphite and dyes cotton and wool in this vat in dark green shades of excellent fastness.



  <I> Example: </I> <B> 25.7 </B> parts of 2-acetylaininopenthiopheii and 21.4 parts of 4.5-benzo-2.3-diketodihydrothionaphthene are mixed with 12 parts of anhydrous sodium acetate and 400 parts of acetic acid anhydride heated to 80-9011 for some time. The dye that precipitates in the heat is filtered, washed and dried. <B> He </B> colors in purple tones.



  To split off the acyl group, the dye is dissolved in concentrated sulfuric acid and so much water is added that a 50% acid is formed. It is then boiled for some time and the deposited dye is filtered, washed and dried.



  The 2-Benzoylamiiiopei-ii) aphtoxypenthiopheii can also be used in the same way.



  Instead of the 4.5-benzo-2.3-dilzetodillydi-o-thionaphthene, the 2-dichloro- or 2-dibroi.nderivat or a corresponding anil can be used.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Darstellung eines grünen Küpenfarbstoffes der Thioindigoreihe der For- niel: EMI0002.0016 dadurch gekennzeichnet, dass man ein 2-Acyl- eminoperinaphtoxypenthiophen der Formel: EMI0002.0021 mit einem 2.3-Dil,-etodiliydi-o-4. 5-beiizo-thio- riaphtenl#i;rpei- der Formel: <B> PATENT CLAIM: </B> Process for the preparation of a green vat dye of the thioindigo series of the formula: EMI0002.0016 characterized in that a 2-acyl eminoperinaphtoxypenthiophene of the formula: EMI0002.0021 with a 2,3-Dil, -etodiliydi-o-4. 5-beiizo-thio- riaphtenl # i; rpei- the formula: EMI0002.0025 worin Ri einen sieh bei der Kondensation abspaltenden Rest bedeutet, kondensiert und aus dem Kondensationsprodukt die Acylgruppe durch Verseifen abspaltet. Trocken ist der Farbstoff ein dunkel grünes Pulver, in konzentrierter Schwefelsäure mit blauer Farbe löslich, er gibt mit alka lischem Hydrostilfit eine rötlich gefärbte Küpe und, färbt Baumwolle und Wolle in dieser Küpe in dunkelgrünen Tönen von hervorra gender Echtheit. EMI0002.0025 where Ri denotes a radical which is split off during the condensation, condenses and splits off the acyl group from the condensation product by saponification. When dry, the dye is a dark green powder, soluble in concentrated sulfuric acid with a blue color, it gives a reddish colored vat with alkaline Hydrostilfit and dyes cotton and wool in this vat in dark green shades of excellent fastness.
CH123688D 1926-03-29 1926-03-29 Process for the preparation of a vat dye of the thioindigo series. CH123688A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH123688T 1926-03-29
CH120806T 1926-03-29

Publications (1)

Publication Number Publication Date
CH123688A true CH123688A (en) 1927-12-16

Family

ID=25709577

Family Applications (1)

Application Number Title Priority Date Filing Date
CH123688D CH123688A (en) 1926-03-29 1926-03-29 Process for the preparation of a vat dye of the thioindigo series.

Country Status (1)

Country Link
CH (1) CH123688A (en)

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