CH263853A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH263853A
CH263853A CH263853DA CH263853A CH 263853 A CH263853 A CH 263853A CH 263853D A CH263853D A CH 263853DA CH 263853 A CH263853 A CH 263853A
Authority
CH
Switzerland
Prior art keywords
dye
production
vat
mol
brown
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Publication of CH263853A publication Critical patent/CH263853A/en

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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
    • C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
    • C09B5/26—Carbazoles of the anthracene series
    • C09B5/28—Anthrimide carbazoles
    • 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
    • C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
    • C09B5/26—Carbazoles of the anthracene series

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 257722.    Verfahren zur Herstellung     eines        Küpenfarbstoffes.       Es wurde gefunden, dass ein wertvoller       Küpenfarbstoff    hergestellt werden kann, wenn  man das     Kondensationsprodukt.    aus 1     Mol          3',6'-Diehlor-3,4-phthaloyl-pyren    und 2     Mol        4-          Amino-1,1'-diantlirimid    mit     earbazolierenden     Mitteln behandelt und das Reaktionsprodukt  anschliessend in     Chlorsulfonsäure        bromiert.     



  Der neue Farbstoff ist ein dunkles Pulver,  das sieh in     konz.    Schwefelsäure mit     olivgrauer     Farbe löst und Baumwolle aus     rötlichbrauner          Küpe    in braunschwarzen Tönen färbt.  



       Beispiel:     1,5 Teile des Kondensationsproduktes aus  1     Mol        3',6'-Dichlor-3,4-phthaloyl-pyren    und  2     Mol        4-Amino-1,1'-dianthrimid    werden bei  1000 in eine Schmelze von 20 Teilen Alumi  niumchlorid und 50 Teilen trockenem     Pyridin     eingetragen. Nun erhöht man die Temperatur  unter gleichzeitigem     Abdestillieren    eines Teils  des     Pyridins    in einer halben Stunde auf 140  bis 1420 und rührt eine weitere halbe Stunde  bei dieser Temperatur. Die Schmelze wird  hierauf in Wasser ausgetragen, mit.

   Natron  lauge alkalisch gestellt und mit     Hydrosulfit          verküpt.    Nach der Filtration von wenig Rück-    stand wird der Farbstoff mit Luft ausgebla  sen,     abgenutseht,    ausgewaschen und getrock  net.  



  1,6 Teile dieses Farbstoffes werden in 30  Teilen     Chlorsulfonsäure    bei 0 bis 50 gelöst,  eine Spur Jod zugefügt und 1,6 Teile Brom       zugetropft.    Dann wird noch 20 Stunden bei  12 bis 160 gerührt. Das     Bromierungsprodukt     wird in kalte     konz.    Schwefelsäure ausgetragen  und hierauf mit Eis ausgefällt. Nach dem     Ab-          nutschen,    Auswaschen und Trocknen bildet  der neue Farbstoff ein dunkles Pulver.



      Additional patent to main patent No. 257722. Process for the production of a vat dye. It has been found that a valuable vat dye can be made by using the condensation product. treated from 1 mol of 3 ', 6'-Diehlor-3,4-phthaloyl-pyrene and 2 mol of 4-amino-1,1'-diantlirimide with earbazolating agents and the reaction product is then brominated in chlorosulfonic acid.



  The new dye is a dark powder that looks in conc. Sulfuric acid dissolves with an olive-gray color and dyes cotton from a reddish-brown vat in brown-black tones.



       Example: 1.5 parts of the condensation product of 1 mole of 3 ', 6'-dichloro-3,4-phthaloyl-pyrene and 2 moles of 4-amino-1,1'-dianthrimide are at 1000 in a melt of 20 parts of aluminum chloride and 50 parts of dry pyridine entered. The temperature is now increased to 140 to 1420 in half an hour, while part of the pyridine is distilled off at the same time, and the mixture is stirred at this temperature for another half hour. The melt is then discharged in water with.

   Make sodium hydroxide alkaline and vat with hydrosulfite. After a little residue has been filtered off, the dye is blown out with air, sutured off, washed out and dried.



  1.6 parts of this dye are dissolved in 30 parts of chlorosulfonic acid at 0 to 50, a trace of iodine is added and 1.6 parts of bromine are added dropwise. The mixture is then stirred at 12 to 160 hours for a further 20 hours. The bromination product is concentrated in cold. Discharged sulfuric acid and then precipitated with ice. After suction filtration, washing out and drying, the new dye forms a dark powder.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man das Kondensationsprodukt aus 1 Mol 3',6'-Di- chlor-3,4-phthaloyl-pyren und 2 Mol 4-Amino- 1,1'-dianthrimid mit carbazolierenden Mitteln behandelt und das Reaktionsprodukt anschlie ssend in Chlorsulfonsäure bromiert. Der neue Farbstoff ist ein dunkles Pulver, Claim: Process for the production of a vat dye, characterized in that the condensation product of 1 mol of 3 ', 6'-dichloro-3,4-phthaloyl-pyrene and 2 mol of 4-amino-1,1'-dianthrimide treated with carbazolizing agents and the reaction product is then brominated in chlorosulfonic acid. The new dye is a dark powder, das sich in konz. Schwefelsäure mit olivgrauer Farbe löst und Baumwolle aus rötlichbrauner Küpe in braunschwarzen Tönen färbt. that is in conc. Sulfuric acid dissolves with an olive-gray color and dyes cotton from a reddish-brown vat in brown-black tones.
CH263853D 1946-03-29 1946-03-29 Process for the production of a vat dye. CH263853A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH263853T 1946-03-29
CH257722T 1946-03-29

Publications (1)

Publication Number Publication Date
CH263853A true CH263853A (en) 1949-09-15

Family

ID=25730120

Family Applications (1)

Application Number Title Priority Date Filing Date
CH263853D CH263853A (en) 1946-03-29 1946-03-29 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH263853A (en)

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