CH281025A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH281025A
CH281025A CH281025DA CH281025A CH 281025 A CH281025 A CH 281025A CH 281025D A CH281025D A CH 281025DA CH 281025 A CH281025 A CH 281025A
Authority
CH
Switzerland
Prior art keywords
iodobenzoylating
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 CH281025A publication Critical patent/CH281025A/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

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 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)-          benzacridon    mit einem     p-jodbenzoylierenden          Mittel    behandelt.    Der neue Farbstoff löst sieh in konzen  trierter Schwefelsäure mit gelbroter Farbe  und färbt pflanzliche Fasern aus rotvioletter       Hydrosulfitküpe    in blauen Tönen von guter  Echtheit.  



       1'11s        p-jodbexizoylierende    Mittel können ge  mäss vorliegendem Verfahren beispielsweise       p-.lodbenzoesäure    und insbesondere ihre funk  tionellen Derivate, vorzugsweise     p-Jodbenzoyl-          chlorid,    verwendet werden. Die Reaktion wird  in an sich bekannter Weise zweckmässig in  einem indifferenten Lösungsmittel, wie     Nitro-          benzol,        Tri-    oder     Diehlorbenzol,    durchgeführt.

      <I>Beispiel:</I>         3,4    Teile     4-Aminoanthrachinon-2,1-    (N)  1',2'-(N)-benzacridon und 3,2 Teile     p-Jodben-          zoylchlorid    werden in 104 Teile     o-Dichlorben-          zol    auf 140 bis 150  erhitzt. Nach einer Stunde  lässt man auf Raumtemperatur abkühlen und  filtriert den in blauen Nadeln kristallisierten  Farbstoff ab.



  <B> Additional patent </B> to main patent no. 277307. Process for the production 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) -benzacridone with a p-iodobenzoylating agent. The new dye dissolves in concentrated sulfuric acid with a yellow-red color and dyes vegetable fibers from red-violet hydrosulfite vat in blue shades of good fastness.



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

      <I> Example: </I> 3.4 parts of 4-aminoanthraquinone-2,1- (N) 1 ', 2' - (N) -benzacridone and 3.2 parts of p-iodobenzoyl chloride are divided into 104 parts of o -Dichlorobenzene heated to 140 to 150. After one hour, the mixture is allowed to cool to room temperature and the dye which has crystallized in blue needles is filtered off.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man 4 - Aminoanthraehinon - 2,1-<B>(N)</B> -l',2'- (N) -benz- acridon mit einem p-jodbenzoylierenden Mit tel behandelt. Der neue Farbstoff löst sich in konzen trierter Schwefelsäure mit gelbroter Farbe und färbt pflanzliche Fasern aus rotvioletter Hydrosulfitküpe in blauen Tönen von guter Echtheit. UNTERANSPRÜCHE 1. PATENT CLAIM: Process for the production of a vat dye, characterized in that 4 - aminoanthraehinone - 2,1- (N) -l ', 2'- (N) -benz- acridone with a p -Iodobenzoylating agent treated. The new dye dissolves in concentrated sulfuric acid with a yellow-red color and dyes vegetable fibers from red-violet hydrosulfite vat in blue shades of good fastness. SUBCLAIMS 1. Verfahren gemäss Patentansprueb, ge kennzeichnet durch die Verwendung eines funktionellen Derivats der p-Jodbenzoesäure als p-jodbenzoylierendes Mittel. 2. Verfahren gemäss Patentanspruch, ge kennzeichnet durch die Verwendung von p Jodbenzoylchlorid als p-jodbenzoylierendes mittel. 3. Verfahren gemäss Patentanspruch, da durch gekennzeichnet, dass man die Reaktion in einem indifferenten Lösungsmittel durch führt. Process according to patent claim, characterized by the use of a functional derivative of p-iodobenzoic acid as p-iodobenzoylating agent. 2. The method according to claim, characterized by the use of p iodobenzoyl chloride as a p-iodobenzoylating agent. 3. The method according to claim, characterized in that the reaction is carried out in an inert solvent.
CH281025D 1943-12-28 1943-12-28 Process for the production of a vat dye. CH281025A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH277307T 1943-12-28
CH281025T 1943-12-28

Publications (1)

Publication Number Publication Date
CH281025A true CH281025A (en) 1952-02-15

Family

ID=25731760

Family Applications (1)

Application Number Title Priority Date Filing Date
CH281025D CH281025A (en) 1943-12-28 1943-12-28 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH281025A (en)

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