CH222154A - 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
CH222154A
CH222154A CH222154DA CH222154A CH 222154 A CH222154 A CH 222154A CH 222154D A CH222154D A CH 222154DA CH 222154 A CH222154 A CH 222154A
Authority
CH
Switzerland
Prior art keywords
preparation
anthraquinone series
new dye
dye
chloroquinizarin
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 CH222154A publication Critical patent/CH222154A/en

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Description

  

  Verfahren zur Darstellung eines neuen Farbstoffes der     Anthrachinonreihe.       Das vorliegende Patent betrifft ein<B>Ver-</B>  fahren zur Darstellung eines neuen Farb  stoffes der     Anthrachinonreihe    und ist da  durch gekennzeichnet, dass man ein     Gemis2h     von     6-Chlorchinizarin    und     Leuko-6-chlor-          chinizarin    mit     vic.-m-Xylidin    kondensiert  und die erhaltene Base     sulfiert.     



       Beispiel:     10 Teile     6-Chlorchinizarin,    15 Teile       Leuko    - 6 -     chlorchinizarin,    75 Teile     vic.    - m     -          Xylidin,    95 Teile Eisessig und 7,5 Teile  Borsäure werden vorzugsweise unter Luft  abschluss oder in     inerter    Atmosphäre so lange  bei 90-1401 gerührt, bis die Kondensation  beendet ist. Die Schmelze wird hierauf in  500 Teile Wasser und 100 Teile Salzsäure  eingerührt, gekocht     und    filtriert. Die Base  wird in üblicher Weise aufgearbeitet.

   Die er  haltene Base wird mit schwachem     Oleum          sulfiert    und ergibt einen Farbstoff, der  Wolle und Seide in     grünstichig    blauen Tönen  von sehr guter Echtheit anfärbt. Der neue    Farbstoff löst sich in Schwefelsäure mit  blauer Farbe und hat folgende Formel:  
EMI0001.0021     




  Process for the preparation of a new dye of the anthraquinone series. The present patent relates to a method for the preparation of a new dye of the anthraquinone series and is characterized in that a mixture of 6-chloroquinizarine and leuco-6-chloroquinizarine is mixed with vic.-m -Xylidine condensed and sulfated the base obtained.



       Example: 10 parts of 6-chloroquinizarin, 15 parts of leuco - 6 - chloroquinizarin, 75 parts of vic. - m - xylidine, 95 parts of glacial acetic acid and 7.5 parts of boric acid are preferably stirred in the absence of air or in an inert atmosphere at 90-1401 until the condensation has ended. The melt is then stirred into 500 parts of water and 100 parts of hydrochloric acid, boiled and filtered. The base is worked up in the usual way.

   The base he obtained is sulfated with weak oleum and gives a dye that dyes wool and silk in greenish blue shades of very good fastness. The new dye dissolves in sulfuric acid with a blue color and has the following formula:
EMI0001.0021

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Farbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man ein Gemisch von 6 - Chorchinizarin und Leuko - 6 - chlorchini- zarin mit vic.-m-Xylidin kondensiert und die erhaltene Base sulfiert. Der Farbstoff färbt Wolle und Seide iri grünstichig blauen Tönen von sehr guter Echtheit an. Er löst sich in Schwefelsäure mit blauer Farbe und hat die Formel: EMI0002.0003 PATENT CLAIM: Process for the preparation of a new dye of the anthraquinone series, characterized in that a mixture of 6 - chloroquinizarin and leuco - 6 - chloroquinizarin is condensed with vic.-m-xylidine and the base obtained is sulfated. The dye stains wool and silk in greenish blue shades of very good fastness. It dissolves in sulfuric acid with a blue color and has the formula: EMI0002.0003
CH222154D 1939-12-20 1939-12-20 Process for the preparation of a new dye of the anthraquinone series. CH222154A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH222154T 1939-12-20
CH215662T 1939-12-20

Publications (1)

Publication Number Publication Date
CH222154A true CH222154A (en) 1942-06-30

Family

ID=25725746

Family Applications (1)

Application Number Title Priority Date Filing Date
CH222154D CH222154A (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) CH222154A (en)

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