CH150801A - 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
CH150801A
CH150801A CH150801DA CH150801A CH 150801 A CH150801 A CH 150801A CH 150801D A CH150801D A CH 150801DA CH 150801 A CH150801 A CH 150801A
Authority
CH
Switzerland
Prior art keywords
dye
diaminoanthraquinone
dioxy
anthraquinone series
preparation
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH150801A publication Critical patent/CH150801A/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
    • C09B1/503—Amino-hydroxy-anthraquinones; Ethers and esters thereof unsubstituted amino-hydroxy anthraquinone

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 142743.    Verfahren zur Herstellung eines Farbstoffes der     Anthrachinonreihe.       Es wurde gefunden, dass man einen     ent-          sulfierten        Farbstoff    der     Anthrachinonreihe     erhält, wenn man die     Leukoverbindung    des  technischen Gemisches des     1.8-dioxy-4.5-          diaminoanthrachinon-2.7-disulfosauren    Natri  ums und des     1.5-dioxy-4.8-diaminoanthra-          chinon-Z.6-disulfosauren    Natriums in wäs  serigem Medium mit Ammoniak erhitzt,

   wo  bei sehr wahrscheinlich 1     Mol    Ammoniak mit  einem     111:o1    der obigen     Anthrachinonderivate     kondensiert, und das so. erhaltene Kondensa  tionsprodukt zum     Anthrachinonderivat    oxy  diert.  



  Der erhaltene     Farbstoff    bildet ein dunkles  Pulver und löst sich in organischen Lösungs  mitteln mit blauer Farbe auf. Er färbt     Ace-          tatseide    nach geeigneter     Verpastung    blau.  



  <I>Beispiel:</I>  5,2 Teile des technischen Gemisches des  1 .     8-dioxy-4    . 5-     diaminoanthrachinon    - 2. 7 -     di-          sulfosauren    Natriums und des     1.5-dioxy-4.        8-          diaminoanthrachinon-2.6-disulfosauren    Natri  ums werden in 25 Teilen einer 24     o/oigen       wässerigen     Ammoniaklösung    mit 4,6 Teilen       Natriumhydrosulfit4    Stunden im geschlossenen  Gefäss auf 100   erhitzt, hierauf filtriert und  gewaschen.

   Das Produkt wird durch Erhitzen       an.-    der Luft oder in     Borsäure-Schwefelsäure     oxydiert. - -



  <B> Additional patent </B> to main patent no. 142743. Process for the production of a dye of the anthraquinone series. It has been found that a desulfurized dye of the anthraquinone series is obtained if the leuco compound of the technical mixture of 1.8-dioxy-4.5-diaminoanthraquinone-2.7-disulfonic acid sodium and 1.5-dioxy-4.8-diaminoanthraquinone-Z. 6-disulfonate of sodium in an aqueous medium heated with ammonia,

   where very likely 1 mol of ammonia condenses with a 111: o1 of the above anthraquinone derivatives, and so. obtained condensation product oxidized to the anthraquinone derivative.



  The dye obtained forms a dark powder and dissolves in organic solvents with a blue color. It dyes acetate silk blue after suitable pasting.



  <I> Example: </I> 5.2 parts of the technical mixture of the 1st 8-dioxy-4. 5- diaminoanthraquinone - 2. 7 - sodium disulfonate and 1.5-dioxy-4. 8-diaminoanthraquinone-2,6-disulfonic acid sodium is heated in 25 parts of a 24% aqueous ammonia solution with 4.6 parts of sodium hydrosulfite for 4 hours in a closed vessel, then filtered and washed.

   The product is oxidized by heating in air or in boric acid-sulfuric acid. - -

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines entsul- fierten Farbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man die Leuko- verbindung des technischen Gemisches des 1. <B> PATENT CLAIM: </B> Process for the production of a desulphurised dye of the anthraquinone series, characterized in that the leuco compound of the technical mixture of 1. 8-dioxy-4. 5-diaminoanthrachinon-2. 7-disul- fosauren Natriums und des 1.5-dioxy-4.8- diaminoanthrachinon-2.6-disulfosauren Natri ums in wässerigem Medium mit Ammoniak erhitzt und das so erhaltene Kondensations produkt zum Anthrachinonderivat oxydiert. Der erhaltene Farbstoff bildet ein dunkles Pulver und löst sich in organischen Lösungs mitteln mit blauer Farbe auf. Er färbt Ace- tatleide nach geeigneter Verpastung blau. 8-dioxy-4. 5-diaminoanthraquinone-2. 7-disulfonic acid sodium and 1.5-dioxy-4.8-diaminoanthraquinone-2.6-disulfonic acid sodium heated with ammonia in an aqueous medium and the condensation product thus obtained is oxidized to the anthraquinone derivative. The dye obtained forms a dark powder and dissolves in organic solvents with a blue color. It turns acetatleide blue after suitable paste.
CH150801D 1930-04-17 1930-04-17 Process for the preparation of a dye of the anthraquinone series. CH150801A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH150801T 1930-04-17
CH142743T 1930-04-17

Publications (1)

Publication Number Publication Date
CH150801A true CH150801A (en) 1931-11-15

Family

ID=25714128

Family Applications (1)

Application Number Title Priority Date Filing Date
CH150801D CH150801A (en) 1930-04-17 1930-04-17 Process for the preparation of a dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH150801A (en)

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