DE542801C - Process for the production of real Kuepen dyes - Google Patents

Process for the production of real Kuepen dyes

Info

Publication number
DE542801C
DE542801C DEI38801D DEI0038801D DE542801C DE 542801 C DE542801 C DE 542801C DE I38801 D DEI38801 D DE I38801D DE I0038801 D DEI0038801 D DE I0038801D DE 542801 C DE542801 C DE 542801C
Authority
DE
Germany
Prior art keywords
real
production
dye
carboxylic acid
dyes
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DEI38801D
Other languages
German (de)
Inventor
Dr Otto Bayer
Dr Heinrich Ritter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
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
Priority to DEI38801D priority Critical patent/DE542801C/en
Application granted granted Critical
Publication of DE542801C publication Critical patent/DE542801C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16Amino-anthraquinones
    • C09B1/20Preparation from starting materials already containing the anthracene nucleus
    • C09B1/36Dyes with acylated amino groups

Description

Verfahren zur Eierstellung von echten Küpenfarbstoffen In dem hauptpatent ist ein Verfahren zur Herstellung von echten Küpenfarbstofien beschrieben, das darin besteht, daß man Pyrazolanthron-2-carbonsäurehalogenide und deren N A1kyl- bzw. h' Aralkylderivate mit solchen verküpbaren cyclischen Diketonen, die mindestens eine freie Aminogruppe enthalten, kondensiert.Process for egg production from real vat dyes In the main patent a process for the production of real vat dyes is described, which therein consists that one pyrazolanthrone-2-carboxylic acid halides and their N A1kyl- or h 'aralkyl derivatives with those cyclic diketones which can be linked to at least contain a free amino group, condensed.

Es wurde nun die bemerkenswerte Beobachtung gemacht, daß man zu gleichen bzw. analogen Produkten auch gelangen kann, wenn man i - Halogenanthrachinoncarbonsäurehalogenide mit den in dem Hauptpatent als Ausgangsprodukte benutzten Aminoderivaten kondensiert und die erhaltenen Kondensationsprodukte mit Hydrazin in Reaktion bringt. Auffallenderweise tritt in den meisten Fällen, ohne daß intermediäre Bildung eines Zwischenproduktes beobachtet werden kann, sofort der Ringschluß zum Pyrazolanthronderivat ein. Die Ausführung des Verfahrens erfolgt in der Weise, daß man die Chloranthrachinoncarbonsäurechlorid - Kondensationsprodukte, am besten in einem geeigneten Lösungsmittel, wie Pyridin, oder auch in wässeriger Anschlämmung unter Druck mit Hydrazinhydrat oder mit Hydrazinsulfat unter Zusatz der nötigen Menge Alkali erhitzt. Verwendet man die Produkte, die aus i - Chloranthrachinon-2-carbonsäurehalogenid hergestellt sind, so erhält man die gleichen Farbstoffe, wie im Hauptpatent beschrieben sind. Geht man dagegen von isomeren i-Halogenanthrachilioncarbonsäurehalogeniden aus, wie beispielsweise vom i-Chloranthrachinon-4.-carbonsäurechlorid, so ist auch auf diese das vorliegende Verfahren anwendbar, und man gelangt ebenfalls zu echten Küpenfarbstofien.The remarkable observation has now been made that one is too like or analogous products can also be achieved if i - halogenanthraquinone carboxylic acid halides condensed with the amino derivatives used as starting materials in the main patent and the condensation products obtained are reacted with hydrazine. Strikingly occurs in most cases without any intermediate formation of an intermediate can be observed, immediately the ring closure to the pyrazolanthrone derivative. the The process is carried out in such a way that the chloranthraquinone carboxylic acid chloride is used - condensation products, preferably in a suitable solvent such as pyridine, or in an aqueous suspension under pressure with hydrazine hydrate or with hydrazine sulfate heated with the addition of the necessary amount of alkali. One uses the products that are made out i - chloranthraquinone-2-carboxylic acid halide are produced, the same dyes as described in the main patent. If, on the other hand, one proceeds from isomers i-Halogenanthrachilioncarbonsäurehalogeniden from, such as from i-Chloranthraquinone-4.-carboxylic acid chloride, so the present method can also be applied to these, and one arrives as well to real vat dyes.

Beispiel i io kg i-Chlor-2-anthrachinoncarbonsäurea-anthrachinonamid werden in i oo kg wasserfreiem Pyridin am Rückfiuß erhitzt und 3 kg Hydr azinhydrat zutropfen gelassen. Nach kurzem Kochen wird der entstandene Farbstoff abgesaugt und mit Sprit nachgewaschen. Er ist identisch mit dem des Beispiels i des Hauptpatents. Durch Behandeln mit geeigneten Mitteln, z. B. durch Kochen mit Chlorlaube, kann der Rohfarbstoff noch weiter gereinigt werden.Example 10 kg of i-chloro-2-anthraquinonecarboxylic acid a-anthraquinonamide are refluxed in 100 kg of anhydrous pyridine and 3 kg of hydrazine hydrate allowed to drip. After a short boil, the resulting dye is filtered off with suction and washed with fuel. It is identical to that of example i of the main patent. By treating with suitable means, e.g. B. by cooking with chlorine arbor can the raw dye can be further purified.

Beispiel 2 Geht man, analog wie im Beispiel i beschrieben, vom i-Chlor-2-anthracliinancarbonsäure _ t' - benzoylamino" 4' -anthrachinonamid aus, sö erhält .man einen Farbstoff, der identisch mit dem des Beispiels 3 des Hauptpatents ist.Example 2 If the procedure is analogous to that described in Example i, the i-chloro-2-anthraclinanecarboxylic acid is used _ t '- benzoylamino "4' -anthraquinonamide from, so you get a dye that is identical to that of Example 3 of the main patent.

Beispiel 3 io kg i-Chlor-z-anthrachinoncarbonsäurea-anthrachinonamid werden in Form einer feinen Paste in z 5o kg Wasser mit 5 kg Hydrazinsulfat und der nötigen Menge Alkali Stunden auf 13o° im Autoklaven erhitzt Der in Form gelbbrauner Flocken abgeschiedene Farbstoff ist identisch mit dem des Beispiels i .Example 3 10 kg of i-chloro-z-anthraquinonecarboxylic acid a-anthraquinonamide are in the form of a fine paste in z 50 kg of water with 5 kg of hydrazine sulfate and The necessary amount of alkali is heated to 130 ° in the autoclave for hours The flake deposited dye is identical to that of Example i.

Beispiel 4 io kg i-Chlor-4-anthrachinonca.rbonsäurea-anthrachinonamid werden in 5o kg Pyridin und 5o kg kylol mit 4 kg Hydrazinhydrat i/2 Stunde lang am RückfluB erhitzt. Hierauf wird der Farbstoff abfiltriert und ausgewaschen. Zwecks Reinigung wird der Farbstoff mit hochsiedenden Lösungsmitteln, wie z. B. Anilin, zum Sieden erhitzt. Der Farbstoff färbt Baumwolle aus weinroter Küpe in braunvioletten Tönen an, die nach dem Verhängen und Absäuern in ein Gelb übergehen.EXAMPLE 4 100 kg of i-chloro-4-anthraquinonecarboxylic acid a-anthraquinonamide are refluxed in 50 kg of pyridine and 50 kg of kylene with 4 kg of hydrazine hydrate for 1/2 hour. The dye is then filtered off and washed out. For the purpose of cleaning, the dye with high-boiling solvents, such as. B. aniline, heated to boiling. The dye stains cotton from a wine-red vat in brown-violet tones, which turn yellow after hanging and acidification.

Claims (1)

PATENTANSPRUCH: Weitere Ausbildung des durch Patent 540 931 geschützten Verfahrens, darin bestehend, daß man i-Halogenanthrachinoncarbonsäurehalogenide mit solchen verküpbaren cyclischen Diketonen kondensiert, die mindestens eine freie Aminogruppe enthalten und die so erhaltenen acvlierten Produkte mit Hydrazin in Reaktion- bringt.PATENT CLAIM: Further development of the process protected by patent 540 931 , consisting in condensing i-haloanthraquinone carboxylic acid halides with those cyclic diketones which can be linked which contain at least one free amino group and which reacts the acvlated products thus obtained with hydrazine.
DEI38801D 1929-07-24 1929-07-24 Process for the production of real Kuepen dyes Expired DE542801C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI38801D DE542801C (en) 1929-07-24 1929-07-24 Process for the production of real Kuepen dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI38801D DE542801C (en) 1929-07-24 1929-07-24 Process for the production of real Kuepen dyes

Publications (1)

Publication Number Publication Date
DE542801C true DE542801C (en) 1932-02-03

Family

ID=7189884

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI38801D Expired DE542801C (en) 1929-07-24 1929-07-24 Process for the production of real Kuepen dyes

Country Status (1)

Country Link
DE (1) DE542801C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447981A (en) * 1945-10-18 1948-08-24 Ici Ltd Anthraquinone vat dyestuffs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447981A (en) * 1945-10-18 1948-08-24 Ici Ltd Anthraquinone vat dyestuffs

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