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CH180291A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH180291A
CH180291A CH180291DA CH180291A CH 180291 A CH180291 A CH 180291A CH 180291D A CH180291D A CH 180291DA CH 180291 A CH180291 A CH 180291A
Authority
CH
Switzerland
Prior art keywords
production
dye
new dye
nitro
oxynaphthalene
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 CH180291A publication Critical patent/CH180291A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr.<B>178224.</B>    Verfahren zur Herstellung eines neuen     Farbstoffes.       Es wurde gefunden, dass man einen neuen       I@ < irbstoff    erhält, wenn man     diazotiertes        2-          Amino-5-nitro-phenylmethylsulfon    mit     1-          1Nfethylamino-5-oxynaphthalin    in saurem Me  dium vereinigt.

   Der so erhaltene     Farbstoff          bildet    in trockenem Zustande ein dunkles  Pulver, das sich in organischen Lösungsmit  teln, wie Aceton, Essigester usw., mit     leucb-          tend    grüner     Farbe    löst. Durch     geeignete    Zu  sätze= in feine     Verteilung    gebracht, färbt er       Acetatlzunstseide    in     ätzbaren,    grünen Tönen.

    <I>Beispiel:</I>       21,H>    Teile     2-Amino-5-nitro-phenylmethyl-          sidfon    werden     unter    kräftigem Rühren in  etwa 300 Teilen Schwefelsäure gelöst und       (larauf    durch Zusatz von 8 Teilen Natrium  nitrit oder der entsprechenden Menge     Nitro-          sylseli -efelsäure        diazotiert.    Man rührt, bis       eine    Probe in Eiswasser klar löslich ist.

   Nun  wird die ganze Mischung in viel Eiswasser       gegeben.    Die so erhaltene klare     Diazolösung     vereinigt man mit einer Auflösung von 17,3    Teilen     1-1Vlethylamino-5-oxynaphthalin    in der  nötigen Menge     verdünnter    Mineralsäure. Der  Farbstoff scheidet sich als dunkles Pulver  aus. Nachdem die Kupplung durch Zusatz  von     Natriumacetat    zu Ende geführt     wurde,     wird filtriert und neutral gewaschen.



  <B> Additional patent </B> to main patent no. <B> 178224. </B> Process for the production of a new dye. It has been found that a new dye is obtained when diazotized 2-amino-5-nitro-phenylmethylsulfone is combined with 1- 1N-methylamino-5-oxynaphthalene in acidic medium.

   The dye thus obtained forms a dark powder when dry, which dissolves in organic solvents such as acetone, ethyl acetate, etc., with a bright green color. With suitable additives = finely distributed, it dyes acetate synthetic silk in etchable green tones.

    <I> Example: </I> 21, H> Parts of 2-amino-5-nitro-phenylmethylsidphone are dissolved in about 300 parts of sulfuric acid with vigorous stirring and (can be increased by adding 8 parts of sodium nitrite or the corresponding amount of nitro - Diazotized sylseli-oleic acid Stir until a sample is clearly soluble in ice water.

   Now the whole mixture is poured into a lot of ice water. The clear diazo solution obtained in this way is combined with a solution of 17.3 parts of 1-1Vlethylamino-5-oxynaphthalene in the required amount of dilute mineral acid. The dye separates out as a dark powder. After the coupling has been completed by adding sodium acetate, it is filtered and washed neutral.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man diazotiertes 2-Amino-5-nitro-phenyl- methyIsulfon mit 1-Methylamino-5-oxynaph- thalin in saurem Medium vereinigt. Der so erhaltene Farbstoff bildet in trockenem Zu stande ein dunkles Pulver, das sich in or ganischen Lösungsmitteln, wie Aceton, Essig ester usw., mit leuchtend grüner Farbe löst. PATENT CLAIM: Process for the production of a new dye, characterized in that diazotized 2-amino-5-nitro-phenyl-methyIsulphone is combined with 1-methylamino-5-oxynaphthalene in an acidic medium. The dye thus obtained forms a dark powder when dry, which dissolves in organic solvents such as acetone, ethyl acetate, etc., with a bright green color. Durch geeignete Zusätze in feine Verteilung gebracht, färbt er Acetatkunstseide in ätz- baren, grünen Tönen. Finely dispersed through suitable additives, it dyes acetate artificial silk in etchable green tones.
CH180291D 1934-03-24 1934-03-24 Process for the production of a new dye. CH180291A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH180291T 1934-03-24
CH178224T 1934-03-24

Publications (1)

Publication Number Publication Date
CH180291A true CH180291A (en) 1935-10-15

Family

ID=25720085

Family Applications (1)

Application Number Title Priority Date Filing Date
CH180291D CH180291A (en) 1934-03-24 1934-03-24 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH180291A (en)

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