CH195554A - Process for the preparation of an anthraquinone dye. - Google Patents

Process for the preparation of an anthraquinone dye.

Info

Publication number
CH195554A
CH195554A CH195554DA CH195554A CH 195554 A CH195554 A CH 195554A CH 195554D A CH195554D A CH 195554DA CH 195554 A CH195554 A CH 195554A
Authority
CH
Switzerland
Prior art keywords
bromoanthraquinone
phosphorus trihalide
dye
preparation
reaction mixture
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 CH195554A publication Critical patent/CH195554A/en

Links

Description

  

  Verfahren zur Herstellung eines     Anthraehinonfarbstoi%s.            Gegenstand    vorliegender     Erfindung        ist     die Herstellung eines     Anthrachinonfarbstof-          fes    aus     1-Oxäthylamino-4-bromanthrachinon     und einem     Phosphortrihalogenid,        vorzug,

  5-          weise        Phosphortrichlorid.    Die Komponenten       Urerden    im Verhältnis 1     Mol        Oxäthylamino-          4-bromanthrachinon    zu     mindestens    1     Mol          Phosphortrihalogenid    so lange     miteinander     erhitzt, bis die     Reaktionsmischung    bei Be  handeln mit     wässrigem    Alkali völlig in Lö  sung geht.

       Anschliessend    wird die gesamte  Reaktionsmischung     mit        wä.ssrigem    Natron  alkali, z. B.     Sodalösung,    behandelt. Die Um  setzung des     Phospherhalogenids    mit dem       1-O#xäthylamino-4A-bromanthrachinon    wird       zweckmässig    in einem     indifferenten,    Verdün  nungsmittel, wie Chlorbenzol,     Chlortoluol,          Nitrobenzol    oder     dergleichen,        vorgenommen.     



  Der entstehende Farbstoff ist ein Na  triumsalz,     atellt    ein rotes Pulver dar     und     färbt Wolle in blauroten Tönen an.    <I>Beispiel:</I>       Erwärmt    man     1-Oxäthylamino-4-bram-          anthrachinon    in der     fünffachen.    Menge     Phos-          phortrichlorid    kurz auf 70   C, so fällt beim  Erkalten das in roten Nadeln kristallisie  rende, noch halogenhaltige U     msetzungspro-          ,dukt    aus, das,

   man auf einer     Glasnutscha    von       Phosphortrichlorid        abtrennt.    Der     NutsGh-          kuchen    wird in     kaltem    Wasser     aufge-          schlemmt,    dem ein     natronalkalisch    reagie  rendes Mittel zugesetzt ist.     Hierbei    entsteht  das     Natriumsal.z        .des    Farbstoffes, das auf  Wolle blaurote     Töne    liefert.

   Die Substanz  kann ohne vorherige Isolierung durch Um  setzung     mit    den verschiedensten Aminen in  violette bis .grünblaue Farbstoffe übergeführt  werden.



  Process for the preparation of an anthraquinone dye% s. The present invention is the preparation of an anthraquinone dye from 1-oxethylamino-4-bromoanthraquinone and a phosphorus trihalide, preferably

  5- wise phosphorus trichloride. The components Urerden in the ratio of 1 mole of oxethylamino-4-bromoanthraquinone to at least 1 mole of phosphorus trihalide are heated together until the reaction mixture completely dissolves when treated with aqueous alkali.

       The entire reaction mixture is then alkali with aqueous sodium bicarbonate, e.g. B. soda solution treated. The conversion of the phosphor halide with the 1-O # xäthylamino-4A-bromoanthraquinone is expediently carried out in an inert diluent such as chlorobenzene, chlorotoluene, nitrobenzene or the like.



  The resulting dye is a sodium salt, atellt is a red powder and dyes wool in blue-red tones. <I> Example: </I> If 1-oxethylamino-4-bram-anthraquinone is heated five times. If the amount of phosphorus trichloride is brought to 70 C for a short time, the reaction product, which crystallizes in red needles and still contains halogen, precipitates on cooling.

   phosphorus trichloride is separated off on a glass nutscha. The NutsGh cake is slurried in cold water to which an alkaline-soda reagent has been added. This creates the sodium salt of the dye, which produces blue-red tones on wool.

   The substance can be converted into violet to .green-blue dyes by reaction with a wide variety of amines without prior isolation.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines- Anthra- chinonfarbstoffes, dadurch gekennzeichnet, dass: 1-Oxäthylamino-4-bromanthrachinon mit einem Pliosphortrihalogenid in dem Verhält nis 1 Mal 1-Oxäthy lamino-4-broma.nthra- chinon zu mindestens 1 Mol Phosphor- trihalogenid so lange umgesetzt wird. PATENT CLAIM: A process for the production of an anthrachinone dye, characterized in that: 1-oxethylamino-4-bromoanthraquinone with a phosphorus trihalide in the ratio 1 times 1-oxäthylamino-4-broma.nthrachinone to at least 1 mol of phosphorus trihalide is implemented for so long. bis die Reaktionsmischung beim Behandeln reit wässrigem Alkali völlig in Lösung geht, und dann die gesamte Reaktionsmischung mit wässrigem \iatronalliali behandelt wird. Der erhältliche Farbstoff ist ein Natrium- salz und färbt Wolle in blauroten Tönen an. until the reaction mixture goes completely into solution when treated with aqueous alkali, and then the entire reaction mixture is treated with aqueous \ iatronalliali. The dye available is a sodium salt and dyes wool in blue-red shades. UNTERANSPRUCH Verfahren nach Patentanspruch. dadurch g ekennzeichnet dass die, Umsetzung des Phosphortrihalogenids mit 1-Oxyäthylamino- 4-bromanthrachinon in Gegenwart eines indifferenten Lösungsmittels vorgenommen wird. SUBClaimed method according to claim. characterized in that the reaction of the phosphorus trihalide with 1-oxyethylamino-4-bromoanthraquinone is carried out in the presence of an inert solvent.
CH195554D 1935-03-04 1936-02-27 Process for the preparation of an anthraquinone dye. CH195554A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE195554X 1935-03-04
CH191014T 1936-02-27

Publications (1)

Publication Number Publication Date
CH195554A true CH195554A (en) 1938-01-31

Family

ID=25722081

Family Applications (1)

Application Number Title Priority Date Filing Date
CH195554D CH195554A (en) 1935-03-04 1936-02-27 Process for the preparation of an anthraquinone dye.

Country Status (1)

Country Link
CH (1) CH195554A (en)

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