CH280063A - Process for the preparation of a nitro dye. - Google Patents

Process for the preparation of a nitro dye.

Info

Publication number
CH280063A
CH280063A CH280063DA CH280063A CH 280063 A CH280063 A CH 280063A CH 280063D A CH280063D A CH 280063DA CH 280063 A CH280063 A CH 280063A
Authority
CH
Switzerland
Prior art keywords
nitro dye
preparation
amino
production
water
Prior art date
Application number
Other languages
German (de)
Inventor
Michael Dr Erlenbach
Adolf Dr Sieglitz
Original Assignee
Michael Dr Erlenbach
Adolf Dr Sieglitz
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 Michael Dr Erlenbach, Adolf Dr Sieglitz filed Critical Michael Dr Erlenbach
Publication of CH280063A publication Critical patent/CH280063A/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
    • C09B51/00—Nitro or nitroso dyes

Landscapes

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

Description

  

      Zilsatzpatent    zum Hauptpatent     Nr.   <B>274851.</B>    Verfahren zur Herstellung eines Nitrofarbstoffes.    Gegenstand des vorliegenden Zusatzpaten  tes ist ein Verfahren zur Herstellung eines  Nitrofarbstoffes, welches dadurch gekenn  zeichnet ist,     dass    man     4,4-Dibrom-3,3-dinitro-          benzophenon    mit     1-Amino-4-methylbenzol-5-          "ulionsäure    kondensiert.

      <I>Beispiel:</I>  <B>50</B> Gewichtsteile     4,4'-Dibroiii-3,3-diiiitro-          benzophenon    und 120     Gewichtsteile    des     Na-          triumsalzes    der     1-Amino-4-methylben        zol-5-sul-          fonsäure    werden bei Gegenwart von<B>30</B> Ge  wichtsteilen     Natriumaeetat    in<B>500</B> Gewichts  teilen Wasser suspendiert; die Mischung wird  <B>5</B> Stunden bei<B>1300</B> im     Autoklaven    gerührt.

    Nach Beendigung der Reaktion wird die Lö  sung geklärt und der gebildete Farbstoff     aus-          gesalzen.     



  Das so erhaltene Produkt stellt ein     orange-          iarbenes    Pulver dar, das sieh in Wasser mit    <B>,</B>     (Y        elber        Farbe        löst        und        Wolle        auch        aus        neutra-          lem    Bade in gelben Tönen von guten Echt  heitseigenschaften, insbesondere guter     Licht-          eehtheit,    färbt.



      Zilsatz patent for main patent no. <B> 274851. </B> Process for the production of a nitro dye. The subject of the present additional patent is a process for the production of a nitro dye which is characterized in that 4,4-dibromo-3,3-dinitrobenzophenone is condensed with 1-amino-4-methylbenzene-5-ulionic acid.

      <I> Example: </I> <B> 50 </B> parts by weight of 4,4'-dibroiii-3,3-diitrobenzophenone and 120 parts by weight of the sodium salt of 1-amino-4-methylbenzene-5 -sulphonic acid are suspended in the presence of <B> 30 </B> parts by weight of sodium acetate in <B> 500 </B> parts by weight of water; the mixture is stirred in the autoclave for <B> 5 </B> hours at <B> 1300 </B>.

    After the reaction has ended, the solution is clarified and the dye formed is salted out.



  The product obtained in this way is an orange-colored powder that dissolves in water with <B>, </B> (Y elver color and wool also from neutral bath in yellow tones with good fastness properties, especially good light- honesty, colors.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Nitro farbstoffes, dadureh gekennzeiehnet, dass man 4,4'-Dibrom-3,3'-dinitrobenzophenon mit 1- Amino-4-methylben7,ol-5-sulfonsäure konden siert. PATENT CLAIM: Process for the production of a nitro dye, dadureh marked that 4,4'-dibromo-3,3'-dinitrobenzophenone is condensed with 1-amino-4-methylben7, ol-5-sulfonic acid. Das so erhaltene Produkt stellt ein orange- flarbenes Pulver dar, das sieh in Wasser mit gelber Farbe löst und Wolle auch aus neutra lem Bade in gelben Tönen von guten Eeht- heitseigensehaften, insbesondere guter Lieht- eehtheit, färbt. The product obtained in this way is an orange-colored powder which dissolves in water with a yellow color and dyes wool, even from neutral bath, in yellow tones with good integrity properties, in particular good lightness.
CH280063D 1948-12-31 1949-05-09 Process for the preparation of a nitro dye. CH280063A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE280063X 1948-12-31
CH274851T 1949-05-09

Publications (1)

Publication Number Publication Date
CH280063A true CH280063A (en) 1951-12-31

Family

ID=25731584

Family Applications (1)

Application Number Title Priority Date Filing Date
CH280063D CH280063A (en) 1948-12-31 1949-05-09 Process for the preparation of a nitro dye.

Country Status (1)

Country Link
CH (1) CH280063A (en)

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