CH184786A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH184786A
CH184786A CH184786DA CH184786A CH 184786 A CH184786 A CH 184786A CH 184786D A CH184786D A CH 184786DA CH 184786 A CH184786 A CH 184786A
Authority
CH
Switzerland
Prior art keywords
production
vat dye
vat
dye
ogazole
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 CH184786A publication Critical patent/CH184786A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     KüpenfarbstofFes.       Vorliegendes     Patent    bezieht sich auf ein  Verfahren zur Herstellung eines     Küpenfarb-          stoffes,    dadurch     gekennzeichnet,    dass man       2-ss-        Anthrachinonyl-benzo-ogazol-5-karbon-          säurechlorid    mit     1-Aminoanthrachinon    kon  densiert.  



  Der so erhaltene     Farbstoff    färbt aus dun  kelolivbrauner     Küpe    Baumwolle in sehr ech  ten gelben Tönen.  



  <I>Beispiel:</I>  39 kg     2-ss-Anthrachinonyl-benzo-ogazol-5-          karbonsäurechlorid    und 23 kg     1-Amino-          anthrachinon    werden in etwa 300 kg     o-Di-          chlorbenzol    etwa 1 Stunde rückfliessend ge  kocht. Nach Erkalten wird das     Konden-          sationsprodukt    abgesaugt, mit Sprit ge  waschen und getrocknet.  



  Das     verwendete        Anthrachinonyl-benzo-          ogazol-karbonsäurechlorid    wird zum     Beispiel     wie folgt dargestellt:       1-Amino-2-ogy-5-benzoesäure        ird    mit  der äquivalenten Menge     Anthrachinon-2-          aldehyd    in einem hochsiedenden Lösungs-    mittel bei Gegenwart eines     Alkasikarbonates     oder     -acetates    mehrere     Stunden        unter    Rück  fluss gekocht.

   Nach Erkalten wird die aus  gefallene     Karbonsäure    abgesaugt und mit  Salzsäure und Wasserdampf nachbehandelt.  Die Darstellung des     Säurechlorides    geschieht  in der üblichen Weise zum Beispiel durch       Kochen    in einem organischen     Lösungsmittel     mit     Thionylchlorid    oder     einem    Phosphor  chlorid.



  Process for the preparation of a vat dye. The present patent relates to a process for the production of a vat dye, characterized in that 2-β-anthraquinonyl-benzo-ogazole-5-carbonic acid chloride is condensed with 1-aminoanthraquinone.



  The dye obtained in this way dyes cotton in very real yellow tones from a dark olive-brown vat.



  <I> Example: </I> 39 kg 2-ss-anthraquinonyl-benzo-ogazole-5-carboxylic acid chloride and 23 kg 1-amino-anthraquinone are refluxed for about 1 hour in about 300 kg o-dichlorobenzene. After cooling, the condensation product is suctioned off, washed with a syringe and dried.



  The anthraquinonyl-benzo-ogazole-carboxylic acid chloride used is represented, for example, as follows: 1-Amino-2-ogy-5-benzoic acid is ird with the equivalent amount of anthraquinone-2-aldehyde in a high-boiling solvent in the presence of an alkali carbonate or acetate boiled under reflux for several hours.

   After cooling, the precipitated carboxylic acid is suctioned off and treated with hydrochloric acid and steam. The preparation of the acid chloride is done in the usual way, for example by boiling in an organic solvent with thionyl chloride or a phosphorus chloride.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man 2-ss- Anthrachinonyl-benzo-ogazol-5-karbon- säurechlorid mit 1-A.minoanthraohinon kon densiert. Der so erhaltene Farbstoff färbt aus dunkelolivbrauner Küpe Baumwolle in sehr echten gelben Tönen. PATENT CLAIM: Process for the production of a vat dye, characterized in that 2-β-anthraquinonyl-benzo-ogazole-5-carbonic acid chloride is condensed with 1-aminoanthraohinone. The dye obtained in this way dyes cotton from a dark olive-brown vat in very real yellow tones.
CH184786D 1934-04-04 1935-01-15 Process for the production of a vat dye. CH184786A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE184786X 1934-04-04
CH181532T 1935-01-15

Publications (1)

Publication Number Publication Date
CH184786A true CH184786A (en) 1936-06-15

Family

ID=25720549

Family Applications (1)

Application Number Title Priority Date Filing Date
CH184786D CH184786A (en) 1934-04-04 1935-01-15 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH184786A (en)

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