DE405394C - Process for the preparation of Kuepen dyes - Google Patents

Process for the preparation of Kuepen dyes

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Publication number
DE405394C
DE405394C DEK79713D DEK0079713D DE405394C DE 405394 C DE405394 C DE 405394C DE K79713 D DEK79713 D DE K79713D DE K0079713 D DEK0079713 D DE K0079713D DE 405394 C DE405394 C DE 405394C
Authority
DE
Germany
Prior art keywords
preparation
dyes
kuepen dyes
dye
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
DEK79713D
Other languages
German (de)
Inventor
Dr Alfred Hagenboecker
Dr Maximilian P Schmidt
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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 Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Priority to DEK79713D priority Critical patent/DE405394C/en
Application granted granted Critical
Publication of DE405394C publication Critical patent/DE405394C/en
Expired legal-status Critical Current

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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
    • C09B57/00Other synthetic dyes of known constitution

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

Description

Verfahren zur Darstellung von Küpenfarbstoffen. Es ist gefunden worden, daß sich Abkömmlinge des Acenaphthenons von folgender Konstitution wo R eine Alkvl-, Aryl- oder Ar alkylgruppe (substituiert oder unsubstituiert) bedeutet, durch Verschmelzen mit Alkali in wertvolle Küpenfarbstoffe überführen lassen. Diese Küpenfarbstoffe färben insbesondere Baumwolle in verschiedenen Tönen an. Die Ausgangsprodukte können im allgemeinen durch Einwirkung vonAldehvden auf Acenaphtlienon erhalten werden.Process for the preparation of vat dyes. It has been found that derivatives of acenaphthenone have the following constitution where R is an alkyl, aryl or aralkyl group (substituted or unsubstituted), can be converted into valuable vat dyes by fusing with alkali. These vat dyes especially dye cotton in different shades. The starting products can generally be obtained by the action of aldehydes on acenaphtlienone.

Beispiel. i Gewichtsteil Benzylidenacenaphrthenon vom Fp. io7° (Gräbe und jequier, Liebigs Annalen 290, S.2od.) werden mit 5 Gewichtsteilen ltzkali auf etwa Zoo bis 26o° erhitzt. Es entstellt eine dunkle Farbstoffschmelze, die man in Wasser aufnimmt. Dabei geht der größte Teil mit roter Farbe in Lösung. -Man behandelt mit Luft, wodurch der noch als Leukoverbindung vorliegende Farbstoff vollständig ab:geschiedenwird. Durch Filtration wird er von der alkalischen Lauge getrennt. Er stellt ein schwarzes Pulver dar, das sich mit alkalischem FIydrosulfit zu einer rote Küpe reduzieren läßt, aus der die Pflanzenfaser in dunkelblauen Tönen angefärbt wird. In Schwefelsäure löst er sich mit blauer Farbe.Example. 1 part by weight of benzylidene acenaphrthenone, mp 10.7 ° (Graves and jequier, Liebigs Annalen 290, p.2od.) are added with 5 parts by weight of alkali zoo heated to 26o °. It disfigures a dark melt of dye that can be found in Absorbs water. The largest part goes into solution with red paint. -Man treated with air, whereby the dye still present as a leuco compound is complete from: is divorced. It is separated from the alkaline liquor by filtration. It is a black powder that combines with alkaline hydrosulphite to form a Red vat can be reduced, from which the vegetable fiber is stained in dark blue tones will. In sulfuric acid it dissolves with a blue color.

An Stelle des im Beispiel genannten Benzylidenacenaphtheilons können Kondensationsprodukte aus Acenaphtlienon und anderen AI-dehydeii, wie z. B. Chlor-, Oxy- oder Aminoaldehvd.e der Benzol-, Naphthalin- oder Anthracenreihe oder Aldehyde der aliphatischen Reihe, verwendet werden. So erhält man z. B. durch `-erschmelzen des o-Oxybenzylidenacenaphthenon (aus Acenaphthenon und Solicylaldehyd erhältlich) mit Alkali im Sinne des obigen Beispiels einen Farbstoff in Forin eines blauen Pulvers, der Baumwolle in blaugrauen Tönen anfärbt, die beim Seifen in brau übergehen. Das o-Otybenzylidenacenaphthenon kristallisiert aus Eisessig in gelben 'Nadeln vom Fp. i86°. Es ist in Natronlauge mit orangegelber Farbe löslich. Säuren fällen es daraus wieder unverändert aus. 1n organischen U--sungsmitteln ist es mit Ausnahme von Ligroin leicht löslich.Instead of the Benzylidenacenaphtheilons mentioned in the example Condensation products from acenaphtlienone and other AI-dehydeii, such as. B. chlorine, Oxy or amino aldehydes of the benzene, naphthalene or anthracene series or aldehydes of the aliphatic series. So you get z. B. by `-melting of the o-oxybenzylideneacenaphthenone (from acenaphthenone and solicylaldehyde available) with alkali in the sense of the above example a dye in Forin one blue powder that dyes cotton in blue-gray tones, which when soapy turns brown pass over. The o-Otybenzylidenacenaphthenon crystallizes from glacial acetic acid in yellow 'Needles of m.p. i86 °. It is soluble in caustic soda with an orange-yellow color. Acids turn it out again unchanged. It is in organic solvents With the exception of ligroin, easily soluble.

Claims (1)

PATENTANSPRUCH: `"erfahren zur Darstellung; von Iiüpenfarbstoffen, dadurch gekennzeichnet, daP inan Ablcöinmlinge -desAcenaphthenons von der Zusammensetzung wo h eine Alkyl-, Aryl- oder Aralkylgruppe (substituiert oder unsubstituiert) bedeutet, mit alkalischen Mitteln verschmilzt. ` PATENT CLAIM: `` "Learned about the representation of liquid dyes, characterized in that they are derived from the composition of the acenaphthenone where h is an alkyl, aryl, or aralkyl group (substituted or unsubstituted), fuses with alkaline agents. `
DEK79713D 1921-10-22 1921-10-22 Process for the preparation of Kuepen dyes Expired DE405394C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK79713D DE405394C (en) 1921-10-22 1921-10-22 Process for the preparation of Kuepen dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK79713D DE405394C (en) 1921-10-22 1921-10-22 Process for the preparation of Kuepen dyes

Publications (1)

Publication Number Publication Date
DE405394C true DE405394C (en) 1924-10-31

Family

ID=7233642

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK79713D Expired DE405394C (en) 1921-10-22 1921-10-22 Process for the preparation of Kuepen dyes

Country Status (1)

Country Link
DE (1) DE405394C (en)

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