CH150798A - 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
CH150798A
CH150798A CH150798DA CH150798A CH 150798 A CH150798 A CH 150798A CH 150798D A CH150798D A CH 150798DA CH 150798 A CH150798 A CH 150798A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
anthraquinone series
anthraquinone
condensation product
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 CH150798A publication Critical patent/CH150798A/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

  

  Verfahren zur Herstellung eines     Farbstoffes    der     Anthrachinonreihe.       Es wurde gefunden, dass man einen     ent-          sulfierten        Farbstoff    der     Anthrachinonreihe    er  hält, wenn man die     Leukoverbindung    der 1.     8-          Dioxy-4.        5-diaminoanthrachinon    - 2.

   7-     disulfo-          säure    in wässerigem Medium in Gegenwart  von Borsäure mit Ammoniak erhitzt, wobei  wahrscheinlich 1     Mol    Ammoniak mit einem       Mol    des obigen     Anthrachinonderivates    kon  densiert, und das so erhaltene Kondensations  produkt zum     Anthrachinonderivat    oxydiert.  



  Der erhaltene     Farbstoff    bildet ein dunkles  Pulver und löst sich in organischen     Lösungs-          rnitteln    mit blauer Farbe auf. Er färbt Acetat  seide nach geeigneter     Verpastung    intensiv  blau.  



  <I>Beispiel</I>  5,2 Teile     1.8-dioxy-l.5-diaminoanthrachi-          nori-2.7-disulfosaures    Natrium werden mit  4,6 Teilen     Natriumhydrosulfit    und 2 Teilen  kristallisierter Borsäure in 25     Volumteilen     einer 33     0%igen    wässerigen     Ammoniaklösung     5 Stunden in einem geschlossenen Gefäss auf  100 0 erhitzt. Man filtriert, wäscht heiss aus  und erhält beim Trocknen, wobei Oxydation    eintritt, ein Kondensationsprodukt, das sich  in Schwefelsäure mit gelber und in     Essig-          säureäthylester    mit blauer Farbe löst.

   Nach       Hmlösen    aus Schwefelsäure und     Verpasten     mit     Sulfitzelluloseablauge    färbt es     Acetatseide     in kräftigen, blauen Tönen. Dieses Konden  sationsprodukt entspricht sehr wahrscheinlich  dem     1-Oxy-4.5.8-triaminoanthrachinon.  



  Process for the preparation 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 1. 8-dioxy-4. 5-diaminoanthraquinone - 2.

   7-disulfonic acid heated with ammonia in an aqueous medium in the presence of boric acid, 1 mol of ammonia probably condensing with one mol of the above anthraquinone derivative and the condensation product thus obtained oxidizes to the anthraquinone derivative.



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



  <I> Example </I> 5.2 parts of 1.8-dioxy-1.5-diaminoanthrachinori-2.7-disulfonic acid are mixed with 4.6 parts of sodium hydrosulfite and 2 parts of crystallized boric acid in 25 parts by volume of a 33% strength aqueous ammonia solution Heated to 100 0 in a closed vessel for 5 hours. It is filtered, washed with hot and on drying, with oxidation occurring, a condensation product which dissolves in sulfuric acid with a yellow color and in ethyl acetate with a blue color.

   After dissolving from sulfuric acid and pasting with sulphite cellulose waste liquor, it dyes acetate silk in strong, blue tones. This condensation product most likely corresponds to 1-oxy-4.5.8-triaminoanthraquinone.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines entsul- fierten Farbstoffes der Anthrachinonreihe, da durch gekennzeichnet, dass man die Leuko- verbindung der 1. 8-Dioxy-4. 5-diaaiinoanthi-a- chinon-2.7-disulfosäure in wässerigem Medium in Gegenwart von Borsäure 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. PATENT CLAIM: Process for the production of a desulphurised dye of the anthraquinone series, characterized in that the leuco compound of the 1. 8-dioxy-4. 5-diaaiinoanthi-a-quinone-2.7-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 and dissolves in organic solvents with a blue color. Er färbt Acetat seide nach geeigneter Verpastung intensiv blau. It turns acetate silk an intense blue after suitable pasting.
CH150798D 1930-04-17 1930-04-17 Process for the preparation of a dye of the anthraquinone series. CH150798A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH150798T 1930-04-17
CH142743T 1930-04-17

Publications (1)

Publication Number Publication Date
CH150798A true CH150798A (en) 1931-11-15

Family

ID=25714125

Family Applications (1)

Application Number Title Priority Date Filing Date
CH150798D CH150798A (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) CH150798A (en)

Similar Documents

Publication Publication Date Title
CH150798A (en) Process for the preparation of a dye of the anthraquinone series.
CH150799A (en) Process for the preparation of a dye of the anthraquinone series.
CH148686A (en) Process for the preparation of a dye of the anthraquinone series.
DE600689C (en) Process for the preparation of condensation products of the anthraquinone series
CH150800A (en) Process for the preparation of a dye of the anthraquinone series.
CH148684A (en) Process for the preparation of a dye of the anthraquinone series.
CH150795A (en) Process for the preparation of a dye of the anthraquinone series.
CH148683A (en) Process for the preparation of a dye of the anthraquinone series.
DE436538C (en) Process for the preparation of Kuepen dyes
AT96507B (en) Process for the preparation of vat dyes and raw materials therefor.
DE491427C (en) Process for the production of Kuepen dyes of the pyrazolanthrone series
CH150801A (en) Process for the preparation of a dye of the anthraquinone series.
CH150797A (en) Process for the preparation of a dye of the anthraquinone series.
CH137119A (en) Process for the production of an anthraquinone derivative.
CH146775A (en) Process for the preparation of a dye of the anthraquinone series.
CH347918A (en) Process for the production of vat dyes of the acedianthron series
CH146773A (en) Process for the preparation of a dye of the anthraquinone series.
CH150796A (en) Process for the preparation of a dye of the anthraquinone series.
CH150794A (en) Process for the preparation of a dye of the anthraquinone series.
CH155339A (en) Process for the production of a nitrogenous vat dye.
CH106440A (en) Process for the production of a new indigoid dye.
CH125632A (en) Process for the production of a new sulfur dye.
CH108863A (en) Process for the preparation of a sulfur-containing vat dye.
CH176927A (en) Process for the production of a vat dye.
CH181531A (en) Process for the preparation of a vat dye of the anthraquinone acridone series.