CH194967A - Process for the preparation of a dioxazine dye sulfonic acid. - Google Patents

Process for the preparation of a dioxazine dye sulfonic acid.

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Publication number
CH194967A
CH194967A CH194967DA CH194967A CH 194967 A CH194967 A CH 194967A CH 194967D A CH194967D A CH 194967DA CH 194967 A CH194967 A CH 194967A
Authority
CH
Switzerland
Prior art keywords
sulfonic acid
preparation
acid
condensation product
dioxazine
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH194967A publication Critical patent/CH194967A/en

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  • Coloring (AREA)

Description

  

  Verfahren zur Darstellung einer     Diogazinfarbstoffsulfosäure.       Gegenstand des vorliegenden Zusatzpaten  tes ist ein Verfahren zur Darstellung einer       Dioxazinfarbstoffsulfosäure,    welches dadurch       gekennzeichnet    ist, dass man das Konden  sationsprodukt, welches aus 1     Mol        Tetra-          chlorchinon    und 2     Mol        4-Amino-3'.4'-dichlor-          diplienylamin-2-snlfosäure    durch Umsetzen in  Alkohol in Gegenwart eines säurebindenden  Mittels erhältlich ist,

   durch Behandeln mit  einem     sulfierend    wirkenden Kondensations  mittel in die     Dioxazinverbindung    überführt       und    das Kondensationsprodukt mit einer ver  dünnten Säure erhitzt.    <I>Beispiel:

  </I>    50 Gewichtsteile des Kondensationspro  duktes, welches aus 1     Mol        Tetrachlorchinon     und 2     Mol        4-Amino-3'.4'-dichlor-diphenyl-          amin-2-sulfosäure    durch Umsetzen in Alkohol  oder Wasser in Gegenwart eines säurebinden  den Mittels erhältlich ist, werden in 700  Gewichtsteilen     Oleum,    20      /oig,    5 Stunden bei         20-251    C gerührt. Dann wird auf 1500  Gewichtsteile Eis gegossen und die blaue  Masse 5 Stunden gekocht.

   Nach dem     Gus-          salzen    wird der     Farbstoff    mit     Kochsalzlösung     neutral gewaschen und getrocknet. Er löst  sich in konzentrierter Schwefelsäure blau,  das Ausgangsmaterial dagegen trüb gelb. Der  Farbstoff färbt Baumwolle und Seide in blauen  Tönen.



  Process for the preparation of a diogazine dye sulfonic acid. The subject of the present additional patent is a process for the preparation of a dioxazine dye sulfonic acid, which is characterized in that the condensation product, which is composed of 1 mole of tetra-chloroquinone and 2 moles of 4-amino-3'.4'-dichloro-diplienylamine-2- snlfosäure can be obtained by reaction in alcohol in the presence of an acid-binding agent,

   converted into the dioxazine compound by treatment with a sulphurizing condensation agent and the condensation product is heated with a dilute acid. <I> example:

  </I> 50 parts by weight of the condensation product, which is obtained from 1 mole of tetrachloroquinone and 2 moles of 4-amino-3'.4'-dichloro-diphenylamine-2-sulfonic acid by reacting in alcohol or water in the presence of an acid-binding agent is, are stirred in 700 parts by weight of oleum, 20%, for 5 hours at 20-251 C. Then ice is poured onto 1500 parts by weight and the blue mass is boiled for 5 hours.

   After the cast salting, the dye is washed neutral with sodium chloride solution and dried. It dissolves blue in concentrated sulfuric acid, whereas the starting material is cloudy yellow. The dye dyes cotton and silk in blue tones.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung einer Dioxazin- farbstoffsulfosäure, dadurch gekennzeichnet, dass man das Kondensationsprodukt, welches aus 1 Mol Tetrachlorchinon und 2 Mol 4- Amino-3'.4'-dichlor-diphenylamin-2-sulfosäure durch Umsetzen in Alkohol in Gegenwart eines säurebindenden Mittels erhältlich ist, durch Behandeln mit einem sulfierend wirken den Kondensationsmittel in die Dioxazinver- bindung überführt und das Kondensations produkt mit einer verdünnten Säure erhitzt. Claim: Process for the preparation of a dioxazine dye sulfonic acid, characterized in that the condensation product, which is obtained from 1 mole of tetrachloroquinone and 2 moles of 4-amino-3'.4'-dichloro-diphenylamine-2-sulfonic acid by reacting in alcohol in the presence of a Acid-binding agent is obtainable, the condensation agent is converted into the dioxazine compound by treatment with a sulfating agent and the condensation product is heated with a dilute acid. Der Farbstoff färbt Baumwolle und Seide in blauen Tönen. <B>UNTERANSPRUCH:</B> Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass das als Ausgangsstoff verwendete Kondensationsprodukt in 20o/oigem Oleum 5 Stunden bei 20-25o C gerührt wird, und dass das so erhaltene Produkt nach stärkerer Verdünnung mit Eis 5 Stunden ge kocht wird. The dye dyes cotton and silk in blue tones. <B> SUBClaim: </B> Process according to patent claim, characterized in that the condensation product used as starting material is stirred in 20% oleum for 5 hours at 20-25 ° C, and that the product obtained in this way, after greater dilution with ice, for 5 hours is cooked.
CH194967D 1934-10-10 1935-10-09 Process for the preparation of a dioxazine dye sulfonic acid. CH194967A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE194967X 1934-10-10
CH186848T 1935-07-26

Publications (1)

Publication Number Publication Date
CH194967A true CH194967A (en) 1937-12-31

Family

ID=25721441

Family Applications (1)

Application Number Title Priority Date Filing Date
CH194967D CH194967A (en) 1934-10-10 1935-10-09 Process for the preparation of a dioxazine dye sulfonic acid.

Country Status (1)

Country Link
CH (1) CH194967A (en)

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