[go: up one dir, main page]

CH280062A - Process for the preparation of a nitro dye. - Google Patents

Process for the preparation of a nitro dye.

Info

Publication number
CH280062A
CH280062A CH280062DA CH280062A CH 280062 A CH280062 A CH 280062A CH 280062D A CH280062D A CH 280062DA CH 280062 A CH280062 A CH 280062A
Authority
CH
Switzerland
Prior art keywords
nitro dye
preparation
dinitrobenzophenone
dibromo
amino
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 CH280062A publication Critical patent/CH280062A/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

  

  <B>Zusatzpatent</B> zum Hauptpatent     Nr.274851.       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-3,4-dimethj>lbenzol-          6-sulfonsäure    kondensiert.  



  <I>Beispiel:</I>  50 Gewichtsteile     4,4'-Dibrom-3,3'-dinitro-          benzophenon    und 1.20 Gewichtsteile des Am  moniumsalzes der     1-Amino-3,4-dimethylbenzol.-          6-sulfonsäure    werden bei Gegenwart von 30  Gewichtsteilen     Natriumacetat    in 500 Gewichts  teilen Wasser suspendiert; die Mischung wird  5 Stunden bei 130  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  farbenes Pulver dar, das sieh in Wasser mit    gelber Farbe löst und Wolle     aueh    aus neutra  lem Bade in gelben Tönen von     guten    Echt  heitseigenschaften, insbesondere guter     Licht-          eehtheit,    färbt.



  <B> Additional patent </B> to main patent number 274851. Process for the preparation 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 with 1.-amino-3,4-dimethj> lbenzene- 6-sulfonic acid condensed.



  <I> Example: </I> 50 parts by weight of 4,4'-dibromo-3,3'-dinitrobenzophenone and 1.20 parts by weight of the ammonium salt of 1-amino-3,4-dimethylbenzene-6-sulfonic acid are present in the presence suspended by 30 parts by weight of sodium acetate in 500 parts by weight of water; the mixture is stirred in the autoclave at 130 for 5 hours. After the reaction has ended, the solution is clarified and the dye formed is salted out.



  The product thus obtained is an orange-colored powder which dissolves in water with a yellow color and also dyes wool from neutral bath in yellow shades of good fastness properties, in particular good lightfastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Nitro- farbstoffes, dadurch gekennzeichnet, dass man 4,4'-Dibrom-3,3'-dinitrobenzophenon mit 1- Amino-3,4-dimethylbenzol-6-sulfonsäure kon densiert. Das so erhaltene Produkt stellt ein orange farbenes Pulver dar, das sich in Wasser mit gelber Farbe löst und Wolle auch aus neutra lem Bade in gelben Tönen von guten Echt- heitseigensehaften, insbesondere guter Licht echtheit, färbt. PATENT CLAIM: Process for the production of a nitro dye, characterized in that 4,4'-dibromo-3,3'-dinitrobenzophenone is condensed with 1-amino-3,4-dimethylbenzene-6-sulfonic acid. The product thus obtained is an orange-colored powder which dissolves in water with a yellow color and also dyes wool from neutral bath in yellow shades of good fastness properties, in particular good light fastness.
CH280062D 1948-12-31 1949-05-09 Process for the preparation of a nitro dye. CH280062A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE280062X 1948-12-31
CH274851T 1949-05-09

Publications (1)

Publication Number Publication Date
CH280062A true CH280062A (en) 1951-12-31

Family

ID=25731583

Family Applications (1)

Application Number Title Priority Date Filing Date
CH280062D CH280062A (en) 1948-12-31 1949-05-09 Process for the preparation of a nitro dye.

Country Status (1)

Country Link
CH (1) CH280062A (en)

Similar Documents

Publication Publication Date Title
CH280062A (en) Process for the preparation of a nitro dye.
DE827102C (en) Process for the preparation of nitro dyes
CH280063A (en) Process for the preparation of a nitro dye.
DE554786C (en) Process for the preparation of arylides of 2íñ3-oxyanthracenecarboxylic acid
CH280060A (en) Process for the preparation of a nitro dye.
CH280061A (en) Process for the preparation of a nitro dye.
CH162647A (en) Process for the preparation of an acidic dye of the anthraquinone series.
CH162646A (en) Process for the preparation of an acidic dye of the anthraquinone series.
CH280064A (en) Process for the preparation of a nitro dye.
CH216321A (en) Process for the production of an acidic wool dye.
CH261279A (en) Process for the production of a new dye of the anthraquinone series.
CH302404A (en) Process for the preparation of a trisazo dye.
CH137956A (en) Process for the preparation of a condensation product of the pyrenequinone series.
CH261281A (en) Process for the production of a new dye of the anthraquinone series.
CH171365A (en) Process for the production of a carbazole derivative.
CH308477A (en) Process for the preparation of a triphenylmethane dye.
CH191165A (en) Process for the preparation of a new monoazo dye.
CH261278A (en) Process for the production of a new dye of the anthraquinone series.
CH129482A (en) Process for the production of a new azo dye.
CH198330A (en) Process for the preparation of an azo dye.
CH261276A (en) Process for the production of a new dye of the anthraquinone series.
CH282632A (en) Process for the preparation of an indolyl-diphenylmethane dye.
CH251879A (en) Process for the production of a new azo dye.
CH296540A (en) Process for the preparation of a monoazo dye.
CH263500A (en) Process for the preparation of an azo dye.