DE454427C - Process for the preparation of Kuepen dyes - Google Patents

Process for the preparation of Kuepen dyes

Info

Publication number
DE454427C
DE454427C DEF60071D DEF0060071D DE454427C DE 454427 C DE454427 C DE 454427C DE F60071 D DEF60071 D DE F60071D DE F0060071 D DEF0060071 D DE F0060071D DE 454427 C DE454427 C DE 454427C
Authority
DE
Germany
Prior art keywords
preparation
dyes
kuepen dyes
aluminum chloride
kuepen
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
DEF60071D
Other languages
German (de)
Inventor
Dr Robert Berliner
Dr Berthold Stein
Dr Willy Trautner
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 DEF60071D priority Critical patent/DE454427C/en
Application granted granted Critical
Publication of DE454427C publication Critical patent/DE454427C/en
Expired legal-status Critical Current

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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/02—Benzathrones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

Verfahren zur Darstellung von Küpetifarbstoffen. Es wurde gefunden, daß die aus Phenylbenzanthronen und Aluminiumchlorid erhältlichen Kondensationsprodukte sich in wertvolle Küpenfarbstoffe überführen lassen, wenn man sie mit Ätzalkalien oder ähnlich wirkenden Mitteln, wie Natriumamid, Anilinkalium usw., verschmilzt. Die Körper liegen in der Schmelze als Leukoform vor, die sich beim Kochen mit Wasser an der Luft oxydiert. Der aus dem Kondensationsprodukt aus Phenylbenzanthron mit Aluminiumchlorid durch Alkalischmelze erhältliche Farbstoff färbt Baumwolle aus der blauen Küpe in klarer blaug rüner Nuance mit ausgezeichneten Echtheiteigenschaften an. In Schwefelsäure löst sich der Körper mit violettroter Farbe. Beispiel. In eine Suspension von i Gewichtsteil des Kondensationsproduktes, erhältlich aus Phenylbenzanthron und Aluminiumchlorid in 2o Gewichtsteilen Alkohol werden 5 Gewichtsteile Kaliumhydroxyd eingetragen und das Gemenge auf 15o' erhitzt, wobei der überschüssige Alkohol. abdestilliert. Die Schmelze färbt sich bald dunkel, und nach etwa i'/, Stunden ist die Reaktion beendet. Es wird mit Wasser verdünnt, aufgekocht und filtriert. Der Farbstoff wird auf diese Weise in grünen Flocken erhalten.Process for the representation of Küpeti dyes. It has been found that the condensation products obtainable from phenylbenzanthrones and aluminum chloride can be converted into valuable vat dyes if they are fused with caustic alkalis or similarly acting agents such as sodium amide, aniline potassium, etc. The bodies are present in the melt as a leuco form, which is oxidized in the air when boiled with water. The dye obtainable from the condensation product of phenylbenzanthrone with aluminum chloride by alkali melt dyes cotton from the blue vat in a clear blue-green shade with excellent fastness properties. In sulfuric acid, the body dissolves with a purple-red color. Example. 5 parts by weight of potassium hydroxide are added to a suspension of 1 part by weight of the condensation product, obtainable from phenylbenzanthrone and aluminum chloride in 20 parts by weight of alcohol, and the mixture is heated to 150 ', the excess alcohol. distilled off. The melt soon turns dark, and the reaction is over after about 1.5 hours. It is diluted with water, boiled and filtered. The dye is thus obtained in green flakes.

Claims (1)

PATENTANSPRUCR: Verfahren zur Darstellung von Küpenfarbstoffen, dadurch gekennzeichnet, daß man die aus Phenylbenzanthronen und Aluminiumchlorid erhältlichen Kondensationsprodukte mit Ätzalkalien oder ähnlich wirkenden Mitteln, wie Natriumamid, Anilinkalium usw., verschmilzt. PATENT CLAIM: Process for the preparation of vat dyes, characterized in that the condensation products obtainable from phenylbenzanthrones and aluminum chloride are fused with caustic alkalis or similarly acting agents such as sodium amide, aniline potassium, etc.
DEF60071D 1925-10-21 1925-10-21 Process for the preparation of Kuepen dyes Expired DE454427C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF60071D DE454427C (en) 1925-10-21 1925-10-21 Process for the preparation of Kuepen dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF60071D DE454427C (en) 1925-10-21 1925-10-21 Process for the preparation of Kuepen dyes

Publications (1)

Publication Number Publication Date
DE454427C true DE454427C (en) 1928-01-06

Family

ID=7108975

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF60071D Expired DE454427C (en) 1925-10-21 1925-10-21 Process for the preparation of Kuepen dyes

Country Status (1)

Country Link
DE (1) DE454427C (en)

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