CH184186A - Process for the preparation of a dye of the anthraquinone series. - Google Patents

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

Info

Publication number
CH184186A
CH184186A CH184186DA CH184186A CH 184186 A CH184186 A CH 184186A CH 184186D A CH184186D A CH 184186DA CH 184186 A CH184186 A CH 184186A
Authority
CH
Switzerland
Prior art keywords
dye
anthraquinone series
anthraquinone
preparation
soluble
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 CH184186A publication Critical patent/CH184186A/en

Links

Description

  

  Verfahren zur Herstellung eines     Farbstoffes    der     Anthraehinonreihe.       Das     Hauptpatent    betrifft ein Verfahren  zur Herstellung eines Farbstoffes der     An-          thrachinonreihe,    bei dem der 1     .4-Di-p-tol-          uidinoanthrachinon    - 2 -     cabonsäuremethylester     solange mit einem sulfonierend wirken  den Mittel behandelt wird, bis eine aufge  arbeitete Probe völlig wasserlöslich gewor  den ist.  



  Es wurde nun     gefunden,,        da3    man einen  ähnlich     wertvollen    Farbstoff der     Anthra.-          chinonreihe    erhalten kann, wenn man den  1 .     4-Di-(p-cycloheay        lanilino)-anthrachinon-          2--carbonsäuremethylester    solange mit einem  sulfonierend wirkenden Mittel behandelt, bis  eine aufgearbeitete     Probe    völlig wasserlös  lich geworden ist.  



  Der erhaltene Farbstoff färbt Wolle aus  schwach saurem Bade in klaren     gelbstichig     grünen Tönen von ausgezeichneten     Echt-          heitseigenschaften.            Beispiel:     5     Teile   <B>1.</B>     4-Di-(p-cyclohegylanilino)-an-          thrachinon-2-carbonsäuremethylester    (herge  stellt zum Beispiel :durch Erhitzen des 1.     4-          Dichloranthrachinon;

      - 2 -     carbonsäuremethyl-          esters,    der aus     1-Amino-2-methyl-4-chloran-          thrachinon    durch     Diazotieren,    Umsetzung  der erhaltenen     Diazoverbindung    nach Sand  meyer mit     Kupferchlorür,    Oxydation des so  erhaltenen     1.4-Dichlor-2-methylanthrachi-          nonsmit    Braunstein in Schwefelsäure und  anschliessende     Veresterung    gewonnen werden  kann,

   mit     p-Cyclohegylanilin        bei    Gegenwart  von wasserfreiem     Natriumacetat    und Kupfer  acetat auf<B>150'</B> C) werden in 50 Teilen       Schwefelsäuremonohydrat    gelöst und bei  einer Temperatur von     etwa   <B>10'</B> C so lange  mit rauchender Schwefelsäure, enthaltend       23%        S03,    behandelt, bis eine aufgearbeitete  Probe eben völlig     wasserlöslich    geworden ist.      Man giesst danach auf Eis und salzt den ent  standenen Farbstoff in der üblichen Weise  aus.



  Process for the preparation of a dye of the anthraquinone series. The main patent relates to a process for the production of a dye of the anthraquinone series, in which the 1 .4-di-p-toluidinoanthraquinone - 2 - cabonic acid methyl ester is treated with a sulfonating agent until a processed sample is completely water-soluble that is.



  It has now been found that a similarly valuable dye of the anthraquinone series can be obtained if the 1. 4-Di- (p-cycloheay lanilino) -anthraquinone- 2- carboxylic acid methyl ester treated with a sulfonating agent until a processed sample has become completely water-soluble.



  The dye obtained dyes wool from a weakly acidic bath in clear, yellowish green shades with excellent fastness properties. Example: 5 parts of methyl 4-di- (p-cyclohegylanilino) -anthrachinone-2-carboxylate (prepared for example: by heating the 1,4-dichloroanthraquinone;

      - 2 - carboxylic acid methyl ester, which is derived from 1-amino-2-methyl-4-chloranothrachinone by diazotization, reaction of the resulting diazo compound according to Sand meyer with copper chloride, oxidation of the 1,4-dichloro-2-methylanthraquinone thus obtained with manganese dioxide in Sulfuric acid and subsequent esterification can be obtained,

   with p-Cyclohegylaniline in the presence of anhydrous sodium acetate and copper acetate at <B> 150 '</B> C) are dissolved in 50 parts of sulfuric acid monohydrate and at a temperature of about <B> 10' </B> C for so long with smoking Sulfuric acid, containing 23% SO3, treated until a processed sample has just become completely water-soluble. It is then poured onto ice and the dye formed is salted out in the usual way.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Farb stoffes der Anthrachinonreihe, dadurch ge kennzeichnet, dass man .den 1. 4-Di-(p-cyclo- hegylanilino) - anthrachinon - 2 - carbonsäure- methylester so lange mit einem sulfonierend wirkenden Mittel behandelt, bis eine aufge- arbeitete Probe völlig wasserlöslich .gewor den ist. Der erhaltene Farbstoff färbt Wolle aus schwach saurem Bade in klaren, gelbstickig grünen Tönen von ausgezeichneten Echtheits eigenschaften. PATENT CLAIM: Process for the production of a dye of the anthraquinone series, characterized in that the 1. 4-di- (p-cyclo- hegylanilino) - anthraquinone - 2 - carboxylic acid methyl ester is treated with a sulfonating agent until a processed sample is completely water-soluble. The dye obtained dyes wool from weakly acidic bath in clear, yellowish green shades of excellent fastness properties.
CH184186D 1934-02-01 1935-01-16 Process for the preparation of a dye of the anthraquinone series. CH184186A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE184186X 1934-02-01
CH180697T 1935-01-16

Publications (1)

Publication Number Publication Date
CH184186A true CH184186A (en) 1936-05-15

Family

ID=25720455

Family Applications (1)

Application Number Title Priority Date Filing Date
CH184186D CH184186A (en) 1934-02-01 1935-01-16 Process for the preparation of a dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH184186A (en)

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