CH150799A - 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
CH150799A
CH150799A CH150799DA CH150799A CH 150799 A CH150799 A CH 150799A CH 150799D A CH150799D A CH 150799DA CH 150799 A CH150799 A CH 150799A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
anthraquinone series
anthraquinone
blue
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 CH150799A publication Critical patent/CH150799A/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
    • C09B1/51—N-substituted amino-hydroxy anthraquinone
    • C09B1/515—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

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 142743.    Verfahren zur Herstellung eines Farbstoffes der     Antlirachinonreihe.       Es wurde gefunden, dass man einen     erit-          sulfierten        Farbstoff    der     Anthrachinonreihe     erhält, wenn man die     Leukoverbindung    der  1.

       5-Dioxy-4.        8-di        methyldiamin        oanthrachinon-          2.        6-disulfosäure    in wässerigem     Medium    in  Gegenwart von Borsäure mit Ammoniak er  hitzt, wobei wahrscheinlich 2     Mol    Ammoniak  mit     1Mol    des obigen     Anthrachinonderivates          kondensieren,    und das so erhaltene Konden  sationsprodukt 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 1 .     5-dioxy-4.        8-dimethyldiamino-          arithrachinon-2    .     6-disulfosaures    Natrium wer  den mit 6 Teilen     Natriumhydrosulfit    und  Teilen kristallisierter Borsäure in 25 Vo-         lumteilen    einer 24     o/oigen    wässerigen Am  inoniaklösung 5 Stunden in einem geschlos  senen Gefäss auf 100   erhitzt. Man filtriert,  wäscht heiss aus und erhält beim Erhitzen  an der Luft, wobei Oxydation eintritt, ein  Kondensationsprodukt, das sich in Schwefel  säure mit gelber und in     Essigsäureäthylestei-          mit    blauer Farbe löst.

   Nach     Umlösen    aus  Schwefelsäure und     V        erpasten    mit     SulfitzeIlu-          loseablauge    färbt es     Acetatseide    in blauen  Tönen. Dieses Kondensationsprodukt ent  spricht sehr wahrscheinlich dein     1-Oxy-4-          methylamino-5    .     8-diaminoaiithr        achinori.  



  <B> Additional patent </B> to main patent no. 142743. Process for the production of a dye of the antlirachinone series. It has been found that an erite-sulfated dye of the anthraquinone series is obtained if the leuco compound of 1.

       5-dioxy-4. 8-dimethyldiamine oanthraquinone- 2. 6-disulfonic acid in aqueous medium in the presence of boric acid with ammonia he heats, 2 mol of ammonia probably condensing with 1 mol of the above anthraquinone derivative, 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 dyes acetate silk blue after suitable pasting.



  <I> Example </I> 5.2 parts 1. 5-dioxy-4. 8-dimethyldiamino-arithraquinone-2. Sodium 6-disulfonate is heated to 100 for 5 hours in a closed vessel with 6 parts of sodium hydrosulfite and parts of crystallized boric acid in 25 parts by volume of a 24% strength aqueous ammonia solution. It is filtered, washed with hot water and, on heating in air, with oxidation occurring, a condensation product which dissolves in sulfuric acid with a yellow color and in acetic acid ethyl ester with a blue color.

   After redissolving from sulfuric acid and pasting with sulphite / lavage liquor, it dyes acetate silk in blue tones. This condensation product very likely corresponds to your 1-oxy-4-methylamino-5. 8-diaminoaiithr achinori.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines entsul- fierten Farbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man die Leu- koverbindung der 1 . PATENT CLAIM: Process for the production of a desulphurised dye of the anthraquinone series, characterized in that the leuco compound of the 1st 5-Dioxy-4. 8-dimethyl- diaminoanthrachinon-2.6-disulfosäure in wäs serigem Medium in Gegenwart von Borsäure mit Ammoniak erhitzt und das so erhaltene Kondensationsprodukt zum Anthrachinonde- rivat oxydiert. Der erhaltene Farbstoff bildet ein dunkles Pulver<B>und löst</B> sich in organischen Lösungs- mitteln mit blauer Farbe auf. Er färbt Acetat seide nach geeigneter Verpastung blau. 5-dioxy-4. 8-dimethyl-diaminoanthraquinone-2,6-disulfonic acid is heated with ammonia in an aqueous medium in the presence of boric acid and the condensation product thus obtained is oxidized to the anthraquinone derivative. The dye obtained forms a dark powder <B> and </B> dissolves in organic solvents with a blue color. It turns acetate silk blue after suitable pasting.
CH150799D 1930-04-17 1930-04-17 Process for the preparation of a dye of the anthraquinone series. CH150799A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH142743T 1930-04-17
CH150799T 1930-04-17

Publications (1)

Publication Number Publication Date
CH150799A true CH150799A (en) 1931-11-15

Family

ID=25714126

Family Applications (1)

Application Number Title Priority Date Filing Date
CH150799D CH150799A (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) CH150799A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610971A (en) * 1949-02-25 1952-09-16 American Cyanamid Co Preparation of alpha-amino anthraquinone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610971A (en) * 1949-02-25 1952-09-16 American Cyanamid Co Preparation of alpha-amino anthraquinone

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