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CH281023A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH281023A
CH281023A CH281023DA CH281023A CH 281023 A CH281023 A CH 281023A CH 281023D A CH281023D A CH 281023DA CH 281023 A CH281023 A CH 281023A
Authority
CH
Switzerland
Prior art keywords
bromobenzoylating
agent
production
vat
vat dye
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 CH281023A publication Critical patent/CH281023A/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
    • 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
    • C09B5/34—Anthraquinone acridones or thioxanthrones
    • C09B5/36—Amino acridones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Zusatzpatent zum Hauptpatent     INTr.    277307.    Verfahren zur Herstellung eines     Küpenfarbstoffes.       Es wurde gefunden, dass ein wertvoller       Küpenfarbstoff    hergestellt werden kann, wenn  man     4-Aminoanthrachinon-2,1-(N)-1',2'-(N)-          benzaeridon    mit einem     p-brombenzoylierenden     Mittel behandelt.  



  Der neue Farbstoff löst sieh in konzen  trierter Schwefelsäure mit gelbroter Farbe  und färbt pflanzliche Fasern aus rotvioletter       IIydrosulfitküpe    in tiefen blauen Tönen von       vorzüglicher    Echtheit.  



  Als     p-brombenzoylierende    Mittel können       gemäss    vorliegendem Verfahren beispielsweise       p-Brombenzoesäure    und insbesondere ihre  funktionellen Derivate, vorzugsweise     p-Brom-          benzoylchlorid,    verwendet werden. Die Reak  tion wird in an sich bekannter Weise zweck  mässig in einem indifferenten Lösungsmittel,  wie Nitrobenzol,     Tri-    oder     Diehlorbenzol,          durchgeführt.     



  <I>Beispiel:</I>  6 Teile     4-Aminoanthraehinon-2,1-(N)-1',2'-          (N)benzaeridon    und 6 Teile     p-Brombenzoyl-          ehlorid    werden in 200 Teilen     o-Dichlorbenzol     während einer Stunde auf 1.50 bis 160  erhitzt.  Man lässt erkalten und filtriert den blauen       Farbstoff    ab.



  Additional patent to the main INTr patent. 277307. Process for the preparation of a vat dye. It has been found that a valuable vat dye can be made by treating 4-aminoanthraquinone-2,1- (N) -1 ', 2' - (N) - benzaeridone with a p-bromobenzoylating agent.



  The new dye dissolves in concentrated sulfuric acid with a yellow-red color and dyes vegetable fibers from red-violet hydrosulfite vat in deep blue tones of excellent fastness.



  According to the present process, p-bromobenzoic acid and in particular its functional derivatives, preferably p-bromobenzoyl chloride, can be used as p-bromobenzoylating agents. The reaction is expediently carried out in a manner known per se in an inert solvent, such as nitrobenzene, tri- or diehlobenzene.



  <I> Example: </I> 6 parts of 4-Aminoanthraehinon-2,1- (N) -1 ', 2'- (N) benzaeridone and 6 parts of p-Brombenzoyl- ehlorid are in 200 parts of o-dichlorobenzene during one Heated to 1.50 to 160 hours. It is allowed to cool and the blue dye is filtered off.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man 4 - Aminoanthrachinon - 2,1- (N) -1',2'- (N) -benz- acridon mit einem p-brombenzoylierenden Mit tel behandelt. Der neue Farbstoff löst sich in konzentrier ter Schwefelsäure mit gelbroter Farbe und färbt pflanzliche Fasern aus rotvioletter Hy- drosulfitküpe in tiefen blauen Tönen von vor züglicher Echtheit. UNTERANSPRÜCHE: 1. PATENT CLAIM: Process for the production of a vat dye, characterized in that 4 - aminoanthraquinone - 2,1- (N) -1 ', 2'- (N) -benz- acridone is treated with a p-bromobenzoylating agent. The new dye dissolves in concentrated sulfuric acid with a yellow-red color and dyes vegetable fibers from red-violet hydrosulfite vat in deep blue tones of excellent fastness. SUBCLAIMS: 1. Verfahren gemäss Patentanspruch, ge kennzeichnet durch die Verwendung eines funktionellen Derivats der p-Brombenzoesäure als p-brombenzoylierendes Mittel. 2. Verfahren gemäss Patentanspruch, ge kennzeichnet durch die Verwendung von p- Brombenzoylchlorid als p-brombenzoylieren- des Mittel. 3. Verfahren gemäss Patentanspruch, da durch gekennzeichnet, dass man die Reaktion in einem indifferenten Lösungsmittel durch führt. Process according to claim, characterized by the use of a functional derivative of p-bromobenzoic acid as p-bromobenzoylating agent. 2. The method according to claim, characterized by the use of p-bromobenzoyl chloride as p-bromobenzoylating agent. 3. The method according to claim, characterized in that the reaction is carried out in an inert solvent.
CH281023D 1943-12-28 1943-12-28 Process for the production of a vat dye. CH281023A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH277307T 1943-12-28
CH281023T 1943-12-28

Publications (1)

Publication Number Publication Date
CH281023A true CH281023A (en) 1952-02-15

Family

ID=25731758

Family Applications (1)

Application Number Title Priority Date Filing Date
CH281023D CH281023A (en) 1943-12-28 1943-12-28 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH281023A (en)

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