CH133806A - Process for the preparation of a new condensation product which can be used as a dye and as an intermediate product for the preparation of dyes. - Google Patents

Process for the preparation of a new condensation product which can be used as a dye and as an intermediate product for the preparation of dyes.

Info

Publication number
CH133806A
CH133806A CH133806DA CH133806A CH 133806 A CH133806 A CH 133806A CH 133806D A CH133806D A CH 133806DA CH 133806 A CH133806 A CH 133806A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
dyes
product
condensation product
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 CH133806A publication Critical patent/CH133806A/en

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  • Coloring (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung eines neuen, als Farbstoff und als     Zwisehenprodukt    zur  Herstellung von Farbstoffen     verwendbaren    Kondensationsproduktes.    Es wurde gefunden, dass     Anthrapyrimidon     unter der     Einwirkung    von alkalischen     Kon-          densationsmitteln    in     eine    neue Verbindung  übergeht, welche sich von dem Ausgangs  material durch ihr Verhalten bei der Ein  wirkung von reduzierenden Mitteln, sowie  durch ihre Eigenkraft, die Faser aus der       Küpe    anzufärben, unterscheidet. Das Pro  dukt soll als Farbstoff und als Zwischen  produkt bei der Herstellung von andern  Farbstoffen Verwendung finden.  



       Beigpiet:     10 Teile     Anthrapyrimidon    von der Formel  
EMI0001.0011     
    werden in eine durch Erhitzen von 100 Tei  len Kalihydrat und 100 Teilen Alkohol er  haltene Schmelze eingetragen. Die Tempe  ratur wird langsam - auf<B>180'</B> gesteigert und  dabei so lange gehalten, bis die Farbstoff  bildung beendet ist. Die     rotbraune    Schmelze  wird auf Wasser gegossen, die     Leukoverbin-          dung    mit Luft oxydiert und der Farbstoff  in der üblichen weise aufgearbeitet. Das  gelbbraune Kondensationsprodukt färbt aus  orangefarbener     Küpe    Baumwolle in der glei  chen Farbe an.

   Die Färbung liefert beim  Verhängen an der     Luft    ein     grünstichiges     Gelb, das beim Betupfen mit Alkali nach  Rot umschlägt und beim Behandeln mit  oxydierenden Mitteln, wie     Hypochlorit,    in  seiner Echtheit verbessert wird, indem hier  bei vorhandene Verunreinigungen des Farb  stoffes     zerstört    werden. Der     Farbstoff    kann  somit durch Behandlung mit     oxydierenden          Mitteln,    zum Beispiel durch     Hypochlorit,          gereinigt    werden. .



  Process for the preparation of a new condensation product which can be used as a dye and as an intermediate product for the preparation of dyes. It has been found that anthrapyrimidone changes into a new compound under the action of alkaline condensation agents, which differs from the starting material in its behavior when exposed to reducing agents and in its own strength to color the fibers from the vat . The product is intended to be used as a dye and as an intermediate in the manufacture of other dyes.



       Beigpiet: 10 parts of anthrapyrimidone of the formula
EMI0001.0011
    are entered into a melt obtained by heating 100 parts of potassium hydrate and 100 parts of alcohol. The temperature is slowly increased to <B> 180 '</B> and held until the dye formation has ended. The red-brown melt is poured onto water, the leuco compound is oxidized with air and the dye is worked up in the usual way. The yellow-brown condensation product stains cotton in the same color from an orange vat.

   The coloring provides a greenish yellow when hanging in the air, which turns red when dabbed with alkali and when treated with oxidizing agents such as hypochlorite, its authenticity is improved by destroying any impurities in the dye. The dye can thus be purified by treatment with oxidizing agents, for example hypochlorite. .

 

Claims (1)

PATBNTANSPRUCH; Verfahren zur Darstellung eines neuen Kondensationsproduktes, das aus orange farbener güpe Baumwolle in der gleichen Farbe anfärbt und beim Verhängen an der Luft ein grünstichiges Gelb liefert, das beim Betupfen mit Alkali nach Rot umschlägt, dadurch gekennzeichnet, dass' man Anthra- pyrimidan mit alkalischen Kondensations- mitteln behandelt. PATBNT CLAIM; Process for the preparation of a new condensation product, which dyes from orange colored güpe cotton in the same color and when hanging in the air produces a greenish yellow which turns red when dabbed with alkali, characterized in that one anthrapyrimidane with alkaline condensation - medium treated.
CH133806D 1926-10-25 1927-10-20 Process for the preparation of a new condensation product which can be used as a dye and as an intermediate product for the preparation of dyes. CH133806A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE133806X 1926-10-25
CH133806T 1927-10-20

Publications (1)

Publication Number Publication Date
CH133806A true CH133806A (en) 1929-06-30

Family

ID=25712176

Family Applications (1)

Application Number Title Priority Date Filing Date
CH133806D CH133806A (en) 1926-10-25 1927-10-20 Process for the preparation of a new condensation product which can be used as a dye and as an intermediate product for the preparation of dyes.

Country Status (1)

Country Link
CH (1) CH133806A (en)

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