CH182269A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH182269A
CH182269A CH182269DA CH182269A CH 182269 A CH182269 A CH 182269A CH 182269D A CH182269D A CH 182269DA CH 182269 A CH182269 A CH 182269A
Authority
CH
Switzerland
Prior art keywords
preparation
violet
dye
azo dye
blue
Prior art date
Application number
Other languages
German (de)
Inventor
Sandoz Chemische Fabri Vormals
Original Assignee
Chem Fab Vormals Sandoz
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 Fab Vormals Sandoz filed Critical Chem Fab Vormals Sandoz
Publication of CH182269A publication Critical patent/CH182269A/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
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08—Amino benzenes
    • 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
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08—Amino benzenes
    • C09B29/0805—Amino benzenes free of acid groups
    • C09B29/0807—Amino benzenes free of acid groups characterised by the amino group
    • C09B29/0809—Amino benzenes free of acid groups characterised by the amino group substituted amino group
    • C09B29/0811—Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino
    • C09B29/0813—Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino substituted by OH, O-C(=X)-R, O-C(=X)-X-R, O-R (X being O,S,NR; R being hydrocarbonyl)

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 177581.    Verfahren zur Darstellung eines     Azofarbstofes.       Das vorliegende Verfahren betrifft die  Darstellung eines blauvioletten Acetat  seidenfarbstoffes und ist dadurch gekenn  zeichnet, dass man     diazotiertes        6-Brom-2,4-          dinitroanilin    mit     Äthyl-ss-y-dioxypropylmeta-          toluidin    kuppelt.

      <I>Beispiel:</I>    Man löst 26,2 Teile     6-Brom-2,4-dinitro-          anilin    in     .135    Teilen konzentrierter Schwefel  säure von<B>60'</B> und versetzt die     Lösung    lang  sam mit 6,9 Teilen scharf getrocknetem Ni  trit zwischen 60 bis<B>70'.</B> Nach einiger     Zeit     kühlt man ab auf 20  , giesst die Masse auf  zerstossenes Eis und verdünnt mit Eiswasser  bis auf 1500 Teile.

   Diese     Diazolösung    lässt  man in eine Lösung von 20,9 Teilen     A.thyl-          ss,y-dioxypropyl-meta-toluidin        (.S.    P. 180   bei  5 mm) in 500 Teilen Wasser und 13 Teilen  30     %        iger    Salzsäure einlaufen. Der filtrierte    und     getrocknete    Farbstoff gibt auf Acetat  seide blauviolette Töne. Er stellt ein     bronce-          glänzendes    Pulver dar und löst sich in Ben  zol mit roter, in Alkohol und Aceton mit  violetter und in     konzentrierter    Schwefelsäure  mit oranger Farbe.



      Additional patent to the main patent No. 177581. Process for the preparation of an azo dye. The present process relates to the preparation of a blue-violet acetate silk dye and is characterized in that diazotized 6-bromo-2,4-dinitroaniline is coupled with ethyl-ss-y-dioxypropylmetoluidine.

      <I> Example: </I> 26.2 parts of 6-bromo-2,4-dinitroaniline are dissolved in .135 parts of concentrated sulfuric acid of <B> 60 '</B> and the solution is slowly added 6.9 parts of sharply dried Ni trite between 60 to <B> 70 '. </B> After some time, the mixture is cooled to 20, the mass is poured onto crushed ice and diluted with ice water up to 1500 parts.

   This diazo solution is allowed to run into a solution of 20.9 parts of ethyl-ss, y-dioxypropyl-meta-toluidine (.S. P. 180 at 5 mm) in 500 parts of water and 13 parts of 30% hydrochloric acid. The filtered and dried dye gives silk blue-violet tones on acetate. It is a shiny bronze powder and dissolves in benzene with red, in alcohol and acetone with violet and in concentrated sulfuric acid with orange.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines blau violetten Acetatseidefarbstoffes,. dadurch ge kennzeichnet, dass man diazotiertes 6-Brom- 2,4-dinitroanilin mit Athyl-ss,y-dioxypropyl- metatoluidin kuppelt. Der Farbstoff stellt ein bronzeglänzendes Pulver dar und löst sich in Benzol mit roter, in Alkohol und Aceton mit violetter und in konzentrierter Schwefelsäure mit Organger Farbe. Ergibt auf Acetatseide blauviolette Töne. PATENT CLAIM: Process for the preparation of a blue-violet acetate silk dye. characterized in that diazotized 6-bromo-2,4-dinitroaniline is coupled with ethyl-ss, y-dioxypropyl-metatoluidine. The dye is a shiny bronze powder and dissolves in benzene with a red color, in alcohol and acetone with a violet color and in concentrated sulfuric acid with an orange color. Produces blue-violet tones on acetate silk.
CH182269D 1934-07-18 1934-07-18 Process for the preparation of an azo dye. CH182269A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH177581T 1934-07-18
CH182269T 1934-07-18

Publications (1)

Publication Number Publication Date
CH182269A true CH182269A (en) 1936-01-31

Family

ID=25719989

Family Applications (1)

Application Number Title Priority Date Filing Date
CH182269D CH182269A (en) 1934-07-18 1934-07-18 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH182269A (en)

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