CH182276A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH182276A
CH182276A CH182276DA CH182276A CH 182276 A CH182276 A CH 182276A CH 182276D A CH182276D A CH 182276DA CH 182276 A CH182276 A CH 182276A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
azo dye
parts
acetate silk
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 CH182276A publication Critical patent/CH182276A/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
    • 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)
    • 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

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 177581.    Verfahren zur Darstellung eines     Azofarbstoffes.       Das vorliegende Verfahren     betrifft    die  Darstellung eines     violetten        Acetatseidenfarb-          stoffes    und ist dadurch gekennzeichnet, dass  man     diazotiertes        3,6-Dichlor-2,4-dinitranilin     mit     Ätliyl-ss,y-diogypropyl-anilin    kuppelt.  



  <I>Beispiel:</I>  Man löst     25;2'    Teile     3,6-Dichlor-2,4-          dinitranilin    in 125 Teilen Schwefelsäure  monohydrat von<B>50,'</B> und versetzt die Lö  sung langsam mit 6,9 Teilen scharf getrock  netem Nitrit zwischen 50 bis<B>60'.</B> Nach  kurzer     Zeit    wird die     Diazolösung    auf 30    abgekühlt und unverdünnt allmählich in eine  eiskalt gehaltene Lösung von 19,5 Teilen       Äthyl-ss,7-diogypropylanilin    in 500 Teilen  Wasser und 13 Teilen 30%iger Salzsäure  einlaufen gelassen;

   durch     gleichzeitige    Zu  gabe von Natronlauge sorgt man dafür, dass       das        Kupplungsgut    immer nur schwach       mineralsauer    bleibt; der filtrierte und ge-    trocknete Farbstoff     wird    aus wenig Alkohol  umkristallisiert und stellt ein     dunkelviolettes     Pulver dar; er löst sich mit     carmoisinroter     Farbe in Alkohol und     Aceton,    mit ziegelroter  Farbe in Benzol und mit oranger Farbe in  konzentrierter Schwefelsäure. Er färbt     Ace-          tatseide        violett.  



  <B> Additional patent </B> to main patent no. 177581. Process for the preparation of an azo dye. The present process relates to the preparation of a violet acetate silk dye and is characterized in that diazotized 3,6-dichloro-2,4-dinitraniline is coupled with ethyl-ss, γ-diogypropyl-aniline.



  <I> Example: </I> 25; 2 parts of 3,6-dichloro-2,4-dinitraniline are dissolved in 125 parts of sulfuric acid monohydrate of <B> 50 '</B> and the solution is slowly added 6.9 parts of sharply dried nitrite between 50 and <B> 60 '. </B> After a short time, the diazo solution is cooled to 30 and undiluted gradually into an ice-cold solution of 19.5 parts of ethyl-ss, 7-diogypropylaniline run in 500 parts of water and 13 parts of 30% hydrochloric acid;

   By adding caustic soda at the same time, you ensure that the coupling material always remains only slightly acidic; the filtered and dried dye is recrystallized from a little alcohol and is a dark purple powder; it dissolves with carmoisine red color in alcohol and acetone, with brick red color in benzene and with orange color in concentrated sulfuric acid. It dyes acetate silk purple.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines violetten Acetatseidenfarbstoffes, dadurch gekenn zeichnet, dass man diazotiertes 3,6-Dichlor- 2,4-dinitranilin mit Äthyl-ss,y-diogypropyl- anilin kuppelt. Der Farbstoff stellt ein dunkelviolettes Pulver dar, welches sich in Alkohol und Ace ton carmoisinröt, in Benzol ziegelrot und in konzentrierter Schwefelsäure orange löst. Er färbt Acetatseide in violetten Tönen an. PATENT CLAIM: Process for the preparation of a violet acetate silk dye, characterized in that diazotized 3,6-dichloro-2,4-dinitraniline is coupled with ethyl-ss, y-diogypropyl-aniline. The dye is a dark purple powder, which dissolves in alcohol and ace ton carmoisine red, in benzene brick red and in concentrated sulfuric acid orange. He dyes acetate silk in purple tones.
CH182276D 1934-07-18 1934-07-18 Process for the preparation of an azo dye. CH182276A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH177581T 1934-07-18
CH182276T 1934-07-18

Publications (1)

Publication Number Publication Date
CH182276A true CH182276A (en) 1936-01-31

Family

ID=25719996

Family Applications (1)

Application Number Title Priority Date Filing Date
CH182276D CH182276A (en) 1934-07-18 1934-07-18 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH182276A (en)

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