CH119634A - Process for the production of an indigoid dye of the anthracene series. - Google Patents

Process for the production of an indigoid dye of the anthracene series.

Info

Publication number
CH119634A
CH119634A CH119634DA CH119634A CH 119634 A CH119634 A CH 119634A CH 119634D A CH119634D A CH 119634DA CH 119634 A CH119634 A CH 119634A
Authority
CH
Switzerland
Prior art keywords
production
dye
anthracene
indigoid dye
anthracene series
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH119634A publication Critical patent/CH119634A/en

Links

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
    • C09B7/06—Indone-thionapthene indigos

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 103649.         Verfahren        zur    Herstellung eines     indigoiclen        Farbstoffes    der     Anthracenreihe.            Iss    wurde gefunden, dass mau einen  neuen     indigoiden    Farbstoff der     Anthracen-          reihe    erhält, wenn man das     1,2-Antliracen-          oxythiophen        finit        5,7-Dibromisatin    konden  siert.

   Der neue Farbstoff ist in Schwefel  säure mit     violettstichig    blauer Farbe lös  lich; er bildet mit     Hydrosulfit    und Natron  lauge eine braunorange     Küpe,    aus welcher  Baumwolle in echten     gelbstichig    oliven Tö  nen gefärbt wird.  



       Beispiel     25 Teile 1,     2-Anthracenoxy        thioplien    wer  den mit 34,5 Teilen 5,     7-Dibromisatin    und  500 Teilen Eisessig kurz aufgekocht. Der  ausgeschiedene Farbstoff wird abgesaugt,  gewaschen und getrocknet.  



  Derselbe Farbstoff entsteht auch, wenn       man    statt der     Oxythiophenverbindung    die       entsprechende        Thioglykoll@arbonsäiire    ver-    wendet. In diesem Falle arbeitet man in  Gegenwart von     Essigsäureanhydrid    und       Natriumacetat,    wobei die     Oxythiophenver-          bindung    zunächst, entsteht und dann mit  den vorhandenen Komponenten reagiert.



      Additional patent to main patent no. 103649. Process for the production of an indigoiclen dye of the anthracene series. It was found that a new indigoid dye of the anthracene series is obtained when the 1,2-antliracene oxythiophene is condensed finitely 5,7-dibromoisatin.

   The new dye is soluble in sulfuric acid with a violet-tinged blue color; With hydrosulphite and sodium hydroxide solution, it forms a brown-orange vat from which cotton is dyed in real yellowish olive tones.



       Example 25 parts of 1,2-anthracenoxy thioplien who briefly boiled the with 34.5 parts of 5, 7-dibromoisatin and 500 parts of glacial acetic acid. The precipitated dye is filtered off, washed and dried.



  The same dye is also produced if the corresponding thioglycolic acid is used instead of the oxythiophene compound. In this case, one works in the presence of acetic anhydride and sodium acetate, whereby the oxythiophene compound is initially formed and then reacts with the components present.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines indi- goiden Farbstoffes der Anthracenreihe, dadurch gekennzeichnet, dass man das 1,2-Anthracenoxythiophen mit 5,7-Dibrom- isatin kondensiert. Der neue Farbstoff ist in Schwefelsäure mit violettsticliig blauer Farbe löslich; er bildet mit Hydrosulfit und Natronlauge eine braunorange Küpe, aus welcher Baumvolle in echten gelbstichig oliven Tönen gefärbt wird. PATENT CLAIM: Process for the production of an indigoid dye of the anthracene series, characterized in that the 1,2-anthracene oxythiophene is condensed with 5,7-dibromoisatin. The new dye is soluble in sulfuric acid with a violet-blue color; With hydrosulphite and caustic soda, it forms a brown-orange vat from which tree-filled vats are colored in real yellow-tinged olive tones.
CH119634D 1923-01-24 1925-03-18 Process for the production of an indigoid dye of the anthracene series. CH119634A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH103649T 1923-01-24
CH119634T 1925-03-18

Publications (1)

Publication Number Publication Date
CH119634A true CH119634A (en) 1927-04-01

Family

ID=25706550

Family Applications (1)

Application Number Title Priority Date Filing Date
CH119634D CH119634A (en) 1923-01-24 1925-03-18 Process for the production of an indigoid dye of the anthracene series.

Country Status (1)

Country Link
CH (1) CH119634A (en)

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