CH222155A - Process for the preparation of a new dye of the anthraquinone series. - Google Patents

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

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Publication number
CH222155A
CH222155A CH222155DA CH222155A CH 222155 A CH222155 A CH 222155A CH 222155D A CH222155D A CH 222155DA CH 222155 A CH222155 A CH 222155A
Authority
CH
Switzerland
Prior art keywords
new dye
preparation
anthraquinone series
oxyamino
chloranthraquinone
Prior art date
Application number
Other languages
German (de)
Inventor
Sandoz A G
Original Assignee
Sandoz 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 Sandoz Ag filed Critical Sandoz Ag
Publication of CH222155A publication Critical patent/CH222155A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung eines neuen Farbstoffes der     Anthrachinonreihe.       Das vorliegende Patent betrifft ein Ver  fahren zur Darstellung eines neuen Farb  stoffes der     Anthrachinonreihe    und ist da  durch gekennzeichnet, dass man ein Gemisch  aus     1,4-Oxyamino-6-chloranthrachinon    und       Leuko-1,4-Oxyamino-6-chloranthrachinon    mit       Mesidin    kondensiert und die erhaltene Base       sulfiert.     



  <I>Beispiel:</I>  12 Teile     1,4-Oxyamino-6-chloranthrachi-          non,    17 Teile     Leuko-1,4-oxyamino-6-chlor-          a.nthrachinon,    75 Teile     Mesidin,    25 Teile Eis  essig und 10 Teile Borsäure werden unter       Luftabschluss    oder in     inerter    Atmosphäre so  lange bei     80-110'    gerührt,     bis    die Konden  sation beendet ist. Die Schmelze     wird    in 500  Teilen Wasser und 100     Teilen        konzentrierter     Salzsäure eingerührt. Es wird kurze Zeit auf  <B>80-90'</B> erwärmt und filtriert.

   Die erhaltene  Rohbase wird durch Oxydation und Kri  stallisation aus organischen Lösungsmitteln,  wie z. B. Anilin, gereinigt. Durch     Sulfierung     mit schwachem     Oleum    erhält man einen    Farbstoff, der Wolle und Seide in grün  stichig blauen Tönen von sehr guten     Echt-          heiten    anfärbt. Der neue Farbstoff löst sich  in Schwefelsäure mit blauer Farbe und hat  folgende Formel:  
EMI0001.0023     




  Process for the preparation of a new dye of the anthraquinone series. The present patent relates to a process for the presentation of a new dye of the anthraquinone series and is characterized by the fact that a mixture of 1,4-oxyamino-6-chloranthraquinone and leuco-1,4-oxyamino-6-chloranthraquinone is condensed with mesidine and the base obtained is sulfated.



  <I> Example: </I> 12 parts of 1,4-oxyamino-6-chloranthraquinone, 17 parts of leuco-1,4-oxyamino-6-chloro-a.nthraquinone, 75 parts of mesidine, 25 parts of glacial acetic acid and 10 parts of boric acid are stirred in the absence of air or in an inert atmosphere at 80-110 'until the condensation has ended. The melt is stirred into 500 parts of water and 100 parts of concentrated hydrochloric acid. It is heated to <B> 80-90 '</B> for a short time and filtered.

   The crude base obtained is by oxidation and crystallization from organic solvents such. B. aniline, purified. Sulphonation with weak oleum gives a dye which dyes wool and silk in green, pungent blue shades with very good fastness properties. The new dye dissolves in sulfuric acid with a blue color and has the following formula:
EMI0001.0023

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Farbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man ein Gemisch aus 1,4-Oxyamino-6-chloranthrachinon und Leuko-1,4-Oxyamino-6-chloranthrachinon mit Mesidin kondensiert und die erhaltene Base sulfiert. Der neue Farbstoff besitzt die Formel: EMI0002.0005 Er löst sich in Schwefelsäure mit blauer Farbe und färbt Wolle und Seide in grün- stiehig blauen Tönen von sehr guten Echt- beiten. PATENT CLAIM: Process for the preparation of a new dye of the anthraquinone series, characterized in that a mixture of 1,4-oxyamino-6-chloranthraquinone and leuco-1,4-oxyamino-6-chloranthraquinone is condensed with mesidine and the base obtained is sulfonated. The new dye has the formula: EMI0002.0005 It dissolves in sulfuric acid with a blue color and dyes wool and silk in green and blue tones of very good real work.
CH222155D 1939-12-20 1939-12-20 Process for the preparation of a new dye of the anthraquinone series. CH222155A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH222155T 1939-12-20
CH215662T 1939-12-20

Publications (1)

Publication Number Publication Date
CH222155A true CH222155A (en) 1942-06-30

Family

ID=25725747

Family Applications (1)

Application Number Title Priority Date Filing Date
CH222155D CH222155A (en) 1939-12-20 1939-12-20 Process for the preparation of a new dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH222155A (en)

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