CH106467A - Process for the production of an indigoid dye of the anthracene series. - Google Patents

Process for the production of an indigoid dye of the anthracene series.

Info

Publication number
CH106467A
CH106467A CH106467DA CH106467A CH 106467 A CH106467 A CH 106467A CH 106467D A CH106467D A CH 106467DA CH 106467 A CH106467 A CH 106467A
Authority
CH
Switzerland
Prior art keywords
green
dye
production
anthracene series
gray
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 CH106467A publication Critical patent/CH106467A/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
    • C09B7/00—Indigoid dyes
    • C09B7/06—Indone-thionapthene indigos

Description

  

  Verfahren zur Herstellung eines     indigoiden    Farbstoffes der     Anthracenreihe.       Es wurde gefunden, dass man einen neuen       indigoiden    Farbstoff der     Anthracenreihe    er  hält, wenn man die     2,3-Anthracenthioglykol-          karbonsäure    mit     a-Isahnanilid        kondensiert     und wenn man den so erhaltenen Farbstoff       bromiert.     



  Der neue Farbstoff bildet ein graugrünes  Pulver, ,das sich in     Schwefelsälure    mit     oliver     Farbe löst und daraus mit Wasser in Form  graugrüner Flocken befällt     wird.    Mit     Hydro-          sulfit    und Natronlauge wird     eine    grüne     Küpe     gebildet,     aus    welcher Baumwolle     gelbgrün     gefärbt wird.  



       Beispiel:     <B>32</B> Teile     2,3-Anthracenthioglykolkarbon-          säure    werden     zusammen    mit 25 Teilen     a-Isa-          tinanilid,    150 Teilen     Essigsäurea,nhy        drid    und  10 Teilen     entwässertem        Natriumacetat    einige       Stunden    am     Rückflusskühler    gekocht.

   Nach  dem     Erkalten    wird das     -.gebildete        Kondensa-          tionsprodukt        abgesaugt    und mit Eisessig und  Wasser gewaschen und getrocknet.  



  76 Teile des so erhaltenen     Farbstoffes    aus       2,3-Anthracenthio.glykolkarbonsäure    und a-         Isatinanilid    werden in 1500 Teilen     Nitroben-          zol    mit 66 Teilen Brom versetzt,     innert    einer  Stunde zur Siedetemperatur erhitzt und hier  auf .noch eine Stunde am     Rückfluss    gelinde ge  kocht. Nach dem Erkalten wird das     Bromie,          rungsproJukt    abgesaugt, mit Alkohol gewa  schen und getrocknet.



  Process for the production of an indigoid dye of the anthracene series. It has been found that a new indigoid dye of the anthracene series is obtained if the 2,3-anthracene thioglycol carboxylic acid is condensed with α-isahnanilide and the dye thus obtained is brominated.



  The new dye forms a gray-green powder, which dissolves in sulfuric acid with an olive color and is then filled with water in the form of gray-green flakes. With hydrosulfite and caustic soda, a green vat is formed, from which cotton is dyed yellow-green.



       Example: 32 parts of 2,3-anthracene thioglycol carbonic acid are refluxed for a few hours together with 25 parts of α-isatinanilide, 150 parts of acetic acid, nhydride and 10 parts of dehydrated sodium acetate.

   After cooling, the condensation product formed is filtered off with suction, washed with glacial acetic acid and water and dried.



  76 parts of the dyestuff thus obtained from 2,3-anthracenthio.glykolkarbonsäure and α-isatin anilide are mixed with 66 parts of bromine in 1500 parts of nitrobenzene, heated to the boiling point within one hour and refluxed for another hour. After cooling, the bromination product is suctioned off, washed with alcohol and dried.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines neuen indigolden Farbstoffes der Anthracenreihe, dadurch gekennzeichnet, dass die 2,3-Anthra- centhio,glykoll#:axbonsäure mit a-Isatinanilid kondensiert wird, und dass man den so erhal tenen Farbstoff bromiert. Der neue Farbstoff bildet ein graugrünes Pulver, das sich in Schwefelsäure mit oliver Farbe löst und daxaus mit Wasser in Form graugrüner Flocken gefällt wird. <B> PATENT CLAIM: </B> Process for the production of a new indigolden dye of the anthracene series, characterized in that the 2,3-anthracenthio, glycol #: axboxylic acid is condensed with a-isatin anilide, and that the obtained in this way Brominated dye. The new dye forms a gray-green powder that dissolves in sulfuric acid with an olive color and is then precipitated with water in the form of gray-green flakes. Mit Ilydro- sulfit und Natronlauge wird eine grüne Küpe gebildet, .aus welcher Baumwolle gelbgrün gefärbt wird. A green vat is formed with ilydrosulfite and sodium hydroxide solution, from which cotton is dyed yellow-green.
CH106467D 1923-01-24 1923-01-24 Process for the production of an indigoid dye of the anthracene series. CH106467A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH106467T 1923-01-24
CH103649T 1923-01-24

Publications (1)

Publication Number Publication Date
CH106467A true CH106467A (en) 1924-09-01

Family

ID=25706531

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106467D CH106467A (en) 1923-01-24 1923-01-24 Process for the production of an indigoid dye of the anthracene series.

Country Status (1)

Country Link
CH (1) CH106467A (en)

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