CH202173A - Process for the preparation of a nitro dye. - Google Patents

Process for the preparation of a nitro dye.

Info

Publication number
CH202173A
CH202173A CH202173DA CH202173A CH 202173 A CH202173 A CH 202173A CH 202173D A CH202173D A CH 202173DA CH 202173 A CH202173 A CH 202173A
Authority
CH
Switzerland
Prior art keywords
preparation
nitro dye
nitro
brown
dye
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 CH202173A publication Critical patent/CH202173A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     Nitrofarbstoffes.       Gegenstand des vorliegenden Zusatz  patentes ist ein Verfahren zur Herstellung  eines     Nitrofarbstoffes,    welches dadurch ge  kennzeichnet ist, dass man     4-Aminophenyl-l-          methyltaurin    mit     2,4,6-Trinitro-l-methoxy-          benzol    kondensiert.  



  <I>Beispiel:</I>  230     Gewiehtsteile4.Aminophenyl.1.methyl-          taurin    von der Formel:  
EMI0001.0009     
    werden zusammen mit 243 Gewichtsteilen       2,4,6-Tiinitro-l-methoxybenzol    und 110 Ge  wichtsteilen Soda in 1500 Gewichtsteilen    Wasser innerhalb 2 Stunden auf<B>80-900</B> C  erhitzt. Nach beendeter Kondensation wird  der Farbstoff mit 250 Gewichtsteilen Natri,um  chlorid     ausgesalzen,    abgesaugt und getrocknet.  



  Das so erhaltene Produkt stellt ein braunes,  in Wasser mit brauner Farbe leicht lösliches  Produkt dar, das Leder in braunen Tönen  vollkommen durchfärbt.



  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-aminophenyl-1-methyltaurine is condensed with 2,4,6-trinitro-1-methoxybenzene.



  <I> Example: </I> 230 parts by weight4.aminophenyl.1.methyl taurine of the formula:
EMI0001.0009
    are heated together with 243 parts by weight of 2,4,6-Tiinitro-1-methoxybenzene and 110 parts by weight of soda in 1500 parts by weight of water to <B> 80-900 </B> C within 2 hours. After the condensation has ended, the dye is salted out with 250 parts by weight of sodium chloride, filtered off with suction and dried.



  The product obtained in this way is a brown product which is easily soluble in water with a brown color and which dyes the leather completely through in brown tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Nitrofarb- stoffes, dadurch gekennzeichnet, dass man 4-Aminophenyl-l-methyltaurin mit 2,4,6-Tri- nitro-l-methoxybenzol kondensiert. Das so erhaltene Produkt stellt ein braunes, in Wasser mit brauner Farbe leicht lösliches Produkt dar, das Leder in braunen Tönen vollkommen durchfärbt. Claim: Process for the production of a nitro-dye, characterized in that 4-aminophenyl-l-methyltaurine is condensed with 2,4,6-tri-nitro-l-methoxybenzene. The product obtained in this way is a brown product which is easily soluble in water with a brown color and which dyes the leather completely through in brown tones.
CH202173D 1936-05-02 1937-04-22 Process for the preparation of a nitro dye. CH202173A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202173X 1936-05-02
CH199466T 1939-11-09

Publications (1)

Publication Number Publication Date
CH202173A true CH202173A (en) 1938-12-31

Family

ID=25723317

Family Applications (1)

Application Number Title Priority Date Filing Date
CH202173D CH202173A (en) 1936-05-02 1937-04-22 Process for the preparation of a nitro dye.

Country Status (1)

Country Link
CH (1) CH202173A (en)

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