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CH270162A - Process for the preparation of an anthraquinone dye. - Google Patents

Process for the preparation of an anthraquinone dye.

Info

Publication number
CH270162A
CH270162A CH270162DA CH270162A CH 270162 A CH270162 A CH 270162A CH 270162D A CH270162D A CH 270162DA CH 270162 A CH270162 A CH 270162A
Authority
CH
Switzerland
Prior art keywords
preparation
anthraquinone dye
parts
dye
anthraquinone
Prior art date
Application number
Other languages
German (de)
Inventor
Limited Imperial Ch Industries
Original Assignee
Ici Ltd
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 Ici Ltd filed Critical Ici Ltd
Publication of CH270162A publication Critical patent/CH270162A/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
    • C09B1/50—Amino-hydroxy-anthraquinones; Ethers and esters thereof
    • C09B1/52—Amino-hydroxy-anthraquinones; Ethers and esters thereof sulfonated
    • C09B1/523—N-substituted amino and hydroxy anthraquinone
    • C09B1/526—N-alkyl, N-aralkyl or N-cycloalkyl derivatives

Landscapes

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

Description

  

  Zusatzpatent zum Hauptpatent     Nr.263982.       Verfahren zur Herstellung eines     Anthrachinonfarbstoffes.       Die vorliegende Erfindung betrifft ein  neues Verfahren für die Herstellung der     5-          Oxy-1,4-bis-        (2-benzy        lcyclohexylamino)        -anthra-          chinon-disulfonsäure    und ist dadurch gekenn  zeichnet, dass 1 -,Hol     Leuko-7,4,

  5-trioxyanthra-          ehinon    mit     \?        Mol        2-Benzylcy        clohexylamin-          monosulfonsäure    kondensiert wird.  



  Die     2-Benzylcyclohexylaniin-monosulfon-          säure    kann in Form eines Salzes, z. B. des       Natriumsalzes,    verwendet werden.  



  <I>Beispiel:</I>  <B>16,7</B> Teile     Natrium-2-benzylcyclohexylamin-          monosulfonat,    20 Teile Wasser, 5 Teile     Leuko-          1,4,5-ti-ioxy        anthrachinon    und 0,75 Teile Ätz  natron werden während 12 Stunden unter  Rühren bei 95  C vermischt.. Das so erhaltene       gelblichgrüne    Reaktionsgemisch wird mit  Wasser, enthaltend 1,7 Teile     Natrium-m-nitro-          benzolsulfonat    und 6 Teile     Ätznatron,    ver  dünnt und hierauf so lange bei Zimmertem-         peratur    gerührt, bis die Farbe der Suspen  sion nach blau umgeschlagen hat.

   Der Farb  stoff wird     abfiltriert,    mit     211loiger        Solelösung     gewaschen und durch Lösen in heissem Was  ser und durch Wiederausfällen durch Zugabe  von Kochsalz gereinigt. Er färbt Wolle aus  einem     Ammoniumbad    in hellen, grünlich  blauen Tönen.  



  Der so erhaltene Farbstoff ist mit dem im  Beispiel 8 des     brit.    Patentes     Nr.564859    be  schriebenen Farbstoff identisch.



  Additional patent to the main patent number 263982. Process for the preparation of an anthraquinone dye. The present invention relates to a new process for the preparation of 5-oxy-1,4-bis (2-benzy lcyclohexylamino) anthraquinone disulfonic acid and is characterized in that 1 -, Hol leuco-7.4,

  5-trioxyanthrahinone with \? Mol of 2-Benzylcy clohexylamin- monosulfonic acid is condensed.



  The 2-benzylcyclohexylaniine monosulfonic acid can be in the form of a salt, for. B. the sodium salt can be used.



  <I> Example: </I> <B> 16.7 </B> parts of sodium 2-benzylcyclohexylamine monosulfonate, 20 parts of water, 5 parts of leuco-1,4,5-thioxyanthraquinone and 0.75 Parts of caustic soda are mixed for 12 hours with stirring at 95 ° C. The yellowish green reaction mixture obtained in this way is diluted with water containing 1.7 parts of sodium m-nitrobenzenesulfonate and 6 parts of caustic soda and then at room temperature. temperature until the color of the suspension has turned blue.

   The dye is filtered off, washed with 211loiger brine solution and purified by dissolving it in hot water and by reprecipitation by adding sodium chloride. He dyes wool from an ammonium bath in light, greenish blue tones.



  The dye thus obtained is identical to the dye described in Example 8 of British Patent No. 564859 be.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von 5-Oxy- 1,4-bis- (2,-:benzylcyclohexylamino) -ant.hrachi- non-distilfonsäure, dadurch gekennzeichnet, dass 1 lIol Leuko-1,4,5-trioxy anthrachinon mit 2 1 1 2-Benzylcy clohexylamin-monosulfon- säure kondensiert wird. PATENT CLAIM: Process for the production of 5-oxy-1,4-bis- (2, -: benzylcyclohexylamino) -ant.hrachinon-distilfonic acid, characterized in that 1 lol of leuco-1,4,5-trioxy anthraquinone with 2 1 1 2-Benzylcyclohexylamin-monosulfonic acid is condensed.
CH270162D 1948-10-20 1948-10-20 Process for the preparation of an anthraquinone dye. CH270162A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH263982T 1948-10-20
CH270162T 1948-10-20

Publications (1)

Publication Number Publication Date
CH270162A true CH270162A (en) 1950-08-15

Family

ID=25730710

Family Applications (1)

Application Number Title Priority Date Filing Date
CH270162D CH270162A (en) 1948-10-20 1948-10-20 Process for the preparation of an anthraquinone dye.

Country Status (1)

Country Link
CH (1) CH270162A (en)

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