CH174542A - Process for the preparation of a whackfast dye of the anthraquinone series. - Google Patents

Process for the preparation of a whackfast dye of the anthraquinone series.

Info

Publication number
CH174542A
CH174542A CH174542DA CH174542A CH 174542 A CH174542 A CH 174542A CH 174542D A CH174542D A CH 174542DA CH 174542 A CH174542 A CH 174542A
Authority
CH
Switzerland
Prior art keywords
dye
blue
preparation
sulfuric acid
whackfast
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 CH174542A publication Critical patent/CH174542A/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
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/32—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups
    • C09B1/34—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated
    • C09B1/343—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated only sulfonated in the anthracene nucleus

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 169707.    Das vorliegende Verfahren     betrifft    die  Darstellung eines     walkechten    Farbstoffes der       Anthrachinonreihe    und ist dadurch gekenn  zeichnet, dass man     1-Amino-2-sulfo-4-phenyl-          aminoanthrachinon    in     iäegenwart    von Schwe  felsäure mit     3-Aminobenzaldehyd    behandelt.  <I>Beispiel,:</I>  20     gr        1-Amino-2-sulfo.4-phenylamino-          anthrachinon    werden in 180 Teilen Schwefel-    säure gelöst und mit 60 Teilen Wasser bei  einer unter 25 0 liegenden Temperatur gefällt.

    Nach Zusatz von 4 Teilen     3-Aminobenzal-          dehyd    rührt man 7 Stunden bei 60 0, saugt  den ausgeschiedenen Farbstoff ab, wäscht  mit 60 % Schwefelsäure aus und isoliert den  Farbstoff durch Aufschlämmen in Wasser  und Neutralisieren mit Natronlauge.  



  Die Verbindung besitzt die Formel  
EMI0001.0013     
    Sie stellt ein dunkelblaues Pulver dar, das  in kaltem     Wasser    mit blauer Farbe leicht    löslich ist: Der     Farbstoff    färbt Wolle     licht-          und        walkecht        grünstichig    blau. In Schwefel-      säure löst er sich mit trüb blaugrüner und  in Schwefelsäure     +    Borsäure mit grünblauer  Farbe.



  <B> Additional patent </B> to the main patent no. 169707. The present process relates to the preparation of a whackfast dye of the anthraquinone series and is characterized in that 1-amino-2-sulfo-4-phenylaminoanthraquinone is present in the presence of Schwe treated with 3-aminobenzaldehyde. <I> Example: </I> 20 g of 1-amino-2-sulfo.4-phenylamino-anthraquinone are dissolved in 180 parts of sulfuric acid and precipitated with 60 parts of water at a temperature below 25 °.

    After adding 4 parts of 3-aminobenzaldehyde, the mixture is stirred for 7 hours at 60 °, the precipitated dye is filtered off with suction, washed with 60% sulfuric acid and the dye is isolated by suspension in water and neutralization with sodium hydroxide solution.



  The compound has the formula
EMI0001.0013
    It is a dark blue powder that is easily soluble in cold water with a blue color: The dye dyes wool lightfast and millfast, greenish blue. It dissolves in sulfuric acid with a cloudy blue-green color and in sulfuric acid + boric acid with a green-blue color.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines walk- echten Farbstoffes der Antbrachinonreihe, dadurch gekennzeichnet, dass man 1-Amino- 2-sulfo-4-phenylaminoantbrachinon in Gegen wart von Schwefelsäure mit 3-Aminobenzal- dehyd behandelt. Der Farbstoff besitzt die Formel EMI0002.0009 Er stellt ein dunkelblaues Pulver dar, das in kaltem Wasser mit blauer Farbe leicht löslich ist. Der Farbstoff Färbt Wolle licht- und walkecht grünstickig blau. PATENT CLAIM: Process for the preparation of a milled dye of the antbrachinone series, characterized in that 1-amino-2-sulfo-4-phenylaminoantbrachinone is treated with 3-aminobenzaldehyde in the presence of sulfuric acid. The dye has the formula EMI0002.0009 It is a dark blue powder that is easily soluble in cold water with a blue color. The dye dyes wool in a lightfast and milled greenish blue. In Schwefel- säure löst er sich mit trüb blaugrüner und in Schwefelsäure -i- Borsäure mit grünblauer Farbe. It dissolves in sulfuric acid with a cloudy blue-green color and in sulfuric acid-i-boric acid with a green-blue color.
CH174542D 1933-08-17 1933-08-17 Process for the preparation of a whackfast dye of the anthraquinone series. CH174542A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH174542T 1933-08-17
CH169707T 1934-01-17

Publications (1)

Publication Number Publication Date
CH174542A true CH174542A (en) 1935-01-15

Family

ID=25718809

Family Applications (1)

Application Number Title Priority Date Filing Date
CH174542D CH174542A (en) 1933-08-17 1933-08-17 Process for the preparation of a whackfast dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH174542A (en)

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