CH129193A - Process for the preparation of an indigoid dye. - Google Patents

Process for the preparation of an indigoid dye.

Info

Publication number
CH129193A
CH129193A CH129193TA CH129193A CH 129193 A CH129193 A CH 129193A CH 129193T A CH129193T A CH 129193TA CH 129193 A CH129193 A CH 129193A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
blue
indigoid dye
chloro
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
Priority to CH129193T priority Critical patent/CH129193A/en
Publication of CH129193A publication Critical patent/CH129193A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B7/00Indigoid dyes
    • C09B7/08Other indole-indigos

Landscapes

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

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>127532.</B>    Verfahren zur Darstellung eines     indigolden        Farbstoffes.       Es wurde gefunden,     dass        halogenierte          Naphtisatine,    in denen ein Halogen in     Peri-          stellung    zur     Iminogruppe    steht, sich in aus  gezeichneter Weise zur Herstellung wertvol  ler     Küpenfarbstoffe    eignen.

   Derartige     Isa-          tine    nachstehender Konstitution:  
EMI0001.0013     
    in der X ein Halogen bedeutet, und die  ausserdem noch andere     Substituenten,    wie  z. B.<B>Cl,</B>     Br,   <B><I>NO, OCR.,</I></B>     usw.    enthalten kön  nen, liefern,<B>je</B> nachdem sie als,     Isatine    selbst  oder in Form ihrer     a-Substitutionsprodukte     zur Anwendung gelangen, mit den zur Her  stellung     indigoider    Farbstoffe     gebräuch-          liehen    Komponenten, wie z.

   B.     Oxythionaph-          ten,        Oxindol,        Indoxyl,        Acenaphtenon,        a-An-          throl,        a-Naphiol,        a-Oxyanthranol,        Karbazol     und ähnlichen Verbindungen violette bis  schwarze     Küpenfarbstoffe,    die sich durch  hervorragende Echtheitseigenschaften     aus-          in     zeichnen.

      Gegenstand vorliegender Erfindung ist  ein Verfahren zur Darstellung eines     indigoi-          den    Farbstoffes, das dadurch gekennzeichnet  ist,     dass    man     8-Chlor-4-brom-1.2-naphtisatin     in     a-Stellung        halogeniert    und das erhaltene       a-Halogensubstitutionsprodukt,    zum Bei  spiel das     a-Chlorid,    mit<B>1</B>     .4-Dioxynaphtalin-          monomethylä,ther    zur Umsetzung bringt.  Der erhaltene Farbstoff färbt Baumwolle  aus gelbbrauner     Küpe    graublau. Seine Lö  sung in Schwefelsäure ist blaugrün.

      <I>Beispiel:</I>  <B>31</B> Gewichtsteile     8-Clilor-4-brom-l.        2-          naphtisatin    (durch     Bromieren    von     8-Chlor-          1.   <B>.</B> 2<B>-</B>     naplitisatin    erhalten, Schmelzpunkt       297')    -werden in Chlorbenzol suspendiert  und mit     Phosphorpentachlorid    in das     a-Chlo-          rid    umgewandelt. Nach Zufügen einer Lö  sung von 20 Gewichtsteilen     1.4-Dioxynaph-          talinmonometliylä,ther    in<B>100</B> Gewichtstei  len Chlorbenzol wird einige Zeit erhitzt.

    Nach beendeter Reaktion wird abgesaugt  und mit Alkohol gewaschen. Der Farbstoff  färbt Baumwolle aus gelbbrauner     Küpe         graublau. Seine Lösung in Schwefelsäure  ist blaugrün.



  Additional patent to main patent no. <B> 127532. </B> Process for the production of an indigolden dye. It has been found that halogenated naphthisatins in which a halogen is in the peri-position to the imino group are suitable in an excellent manner for the production of valuable vat dyes.

   Such isatin of the following constitution:
EMI0001.0013
    in which X is a halogen, and also other substituents, such as. B. <B> Cl, </B> Br, <B> <I> NO, OCR., </I> </B> etc., deliver, <B> depending </B> on them as, isatins themselves or in the form of their a-substitution products are used, with the components used for the manufacture of indigoid dyes, such as.

   B. oxythionaph- th, oxindole, indoxyl, acenaphtenone, a-anthrole, a-naphiol, a-oxyanthranol, carbazole and similar compounds violet to black vat dyes, which are characterized by excellent fastness properties.

      The present invention relates to a process for the preparation of an indigoid dye, which is characterized in that 8-chloro-4-bromo-1,2-naphthisatin is halogenated in the α-position and the α-halogen substitution product obtained, for example the a- Bringing chloride, with <B> 1 </B> .4-Dioxynaphtalin- monomethylether to implement. The dye obtained dyes cotton from a yellow-brown vat gray-blue. Its solution in sulfuric acid is blue-green.

      <I> Example: </I> <B> 31 </B> parts by weight of 8-Clilor-4-bromo-l. 2- naphtisatin (obtained by brominating 8-chloro 1. <B>. </B> 2 <B> - </B> naplitisatin, melting point 297 ') - are suspended in chlorobenzene and converted into the α-chloro with phosphorus pentachloride - rid converted. After adding a solution of 20 parts by weight of 1,4-dioxynaphthalene monomethyl ether in <B> 100 </B> parts by weight of chlorobenzene, the mixture is heated for some time.

    When the reaction has ended, it is filtered off with suction and washed with alcohol. The dye dyes cotton from a yellow-brown vat gray-blue. Its solution in sulfuric acid is blue-green.

 

Claims (1)

PATENTANSPRUCII: Verfahren zur Darstellung eines indigoi- den Farbstoffes, dadurp,11 gekennzeiehnet, dass man 8-Chlor-4-brom-l. 2-naphtisatin in a-Stellung halogeniert und auf das erhal tene a-Halogensubstitutionsprodukt 1.4- Dioxynaphtalinmonomethylä,ther einwirken lässt. Der erhaltene Farbstoff löst sich in , PATENT CLAIM: Process for the preparation of an indigoid dye, dadurp, 11 marked that 8-chloro-4-bromo-l. 2-naphtisatin halogenated in the a-position and allowed to act on the obtained a-halogen substitution product 1.4-dioxynaphthalene monomethyl ether. The dye obtained dissolves in, Schwefelsäure mit blaugrüner Farbe und färbt Baumwolle aus gelbbrauner- Kupe graublau. Sulfuric acid with a blue-green color and dyes cotton from yellow-brown-coupe gray-blue.
CH129193T 1927-04-01 1927-04-01 Process for the preparation of an indigoid dye. CH129193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH129193T CH129193A (en) 1927-04-01 1927-04-01 Process for the preparation of an indigoid dye.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH127532T 1927-04-01
CH129193T CH129193A (en) 1927-04-01 1927-04-01 Process for the preparation of an indigoid dye.

Publications (1)

Publication Number Publication Date
CH129193A true CH129193A (en) 1928-12-01

Family

ID=25710927

Family Applications (1)

Application Number Title Priority Date Filing Date
CH129193T CH129193A (en) 1927-04-01 1927-04-01 Process for the preparation of an indigoid dye.

Country Status (1)

Country Link
CH (1) CH129193A (en)

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