DE485909C - Process for the preparation of nitrogenous Kuepen dyes - Google Patents

Process for the preparation of nitrogenous Kuepen dyes

Info

Publication number
DE485909C
DE485909C DEI33336D DEI0033336D DE485909C DE 485909 C DE485909 C DE 485909C DE I33336 D DEI33336 D DE I33336D DE I0033336 D DEI0033336 D DE I0033336D DE 485909 C DE485909 C DE 485909C
Authority
DE
Germany
Prior art keywords
preparation
nitrogenous
dyes
kuepen dyes
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
DEI33336D
Other languages
German (de)
Inventor
Dr Karl Koeberle
Dr Max A Kunz
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 DEI33336D priority Critical patent/DE485909C/en
Application granted granted Critical
Publication of DE485909C publication Critical patent/DE485909C/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
    • C09B3/22—Dibenzanthrones; Isodibenzanthrones
    • C09B3/30—Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Darstellung stickstoffhaltiger Küpenfarbstoffe -Zusatz zum Patent 48145 0 In dem Hauptpatent 481 q.5o ist ein Verfahren zur Darstellung von stickstoffhaltigen Küpenfarbstoffen angegeben, bei dem man Nitrodibenzanthrone, deren Derivate oder Honiologe mit schwach alkalischen Mitteln, gegebenenfalls in Anwesenheit von Lösungs-oder Verdünnungsmitteln und Katalysatoren, behandelt.Process for the preparation of nitrogenous vat dyes - additive to the patent 48145 0 In the main patent 481 q.5o is a method for the representation indicated by nitrogen-containing vat dyes, in which one uses nitrodibenzanthrones, their derivatives or honiologists with weakly alkaline agents, possibly in Presence of solvents or diluents and catalysts.

Es wurde nun gefunden, daß man ebenfalls neue, wertvolle, stickstoffhaltige Küpenfarbstoffe erhält, wenn man Nitroisodibenzanthrone, deren Derivate oder Homologe, wie sie beispielsweise durch Nitrieren von Isodibenzanthron in Nitrobenzol mit Salpetersäure erhalten werden, mit alkalischen Mitteln, z. B. mit Alkali- oder Erdalkalisalzen schwacher Säuren, wie Natriumacetat, Kaliumacetat, Kaliumformiat, Pottasche oder Ätzalkalien usw., gegebenenfalls in Anwesenheit von Lösungs- oder Verdünnungsmitteln und Katalysatoren, z.- B. Kupferverbindungen, behandelt. Die in ausgezeichneter Ausbeute erhaltenen Farbstoffe färben die pflanzliche Faser aus alkalischer Hydrosulfitküp,c in kräftigen, sehr echten. Tönen an. Sie lösen sich inkonzentrierter Schwefelsäure meist mit grüner Farbe.It has now been found that you can also new, valuable, nitrogen-containing Vat dyes are obtained when nitroisodibenzanthrones, their derivatives or homologues, such as, for example, by nitrating isodibenzanthrone in nitrobenzene with nitric acid obtained with alkaline agents, e.g. B. with alkali or alkaline earth salts weak acids, such as sodium acetate, potassium acetate, potassium formate, or potash Caustic alkalis etc., if necessary in the presence of solvents or thinners and catalysts, e.g. copper compounds. The in excellent The dyes obtained in the yield dye the vegetable fiber from alkaline hydrosulfite, c in strong, very real ones. Tones on. They dissolve in concentrated sulfuric acid mostly green in color.

B e i s p ä e 1. 5o Teile Nitroisodibienzanthron, erhalten durch Nitrieren von Isodibenzanthron in- Nitrobenzol mit Salpetersäure, werden in 5oo Teilen Nitrobenzol mit 75 Teilen Kaliumacetat und z Teilen Kupferoxyd so lange gekocht, bis die anfangs grüne Lösungsfarbe des Reaktionsgemisches in Blau übergegangen ist. Dann arbeitet man, wie in Beispiel 1 des Hauptpatents 48145o beschrieben, auf. Der erhaltene Farbstoff, ein blauschwarzes Pulver, löst sich in konzentrierter Schwefelsäure mit grüner Farbe und liefert auf Baumwolle aus blauer Küp.e blaugraue, kräftige Töne von sehr guter Echtheit.B e i s pä e 1. 5o parts of nitroisodibienzanthrone, obtained by nitration of isodibenzanthrone in-nitrobenzene with nitric acid, in 500 parts of nitrobenzene cooked with 75 parts of potassium acetate and z parts of copper oxide until the beginning green solution color of the reaction mixture has turned blue. Then work one, as described in Example 1 of the main patent 48145o, on. The obtained dye, a blue-black powder, dissolves in concentrated sulfuric acid with a green color and delivers blue-gray, strong tones of very good quality on cotton from blue tubs Authenticity.

Produkte von ähnlichen färberischen Eiigenschaften weiden erhalten, wenn man Nitroisodibenzanthron mit Pottasche oder Atzalkalien behandelt.Products with similar egg coloring properties are obtained from pastures, when treating nitroisodibenzanthrone with potash or caustic alkalis.

Claims (1)

PATENTANSPRUCH: Abänderung des Verfahrens des Hauptpatents q;81 450 zur Darstellung stickstoffhaltiger Küpenfarbstoffe, dadurch gekennzeichnet, daß man hier Nitroiso,dibenzanthrone, deren Derivate oder Homologe mit alkalischen Mitteln, gegebenenfalls in Anwesenheit von Lösungs- oder Verdünnungsmitteln und Katalysatoren, behandelt.-PATENT CLAIM: Modification of the procedure of the main patent q; 81 450 for the preparation of nitrogen-containing vat dyes, characterized in that one here Nitroiso, dibenzanthrone, their derivatives or homologues with alkaline agents, optionally in the presence of solvents or diluents and catalysts, treated.-
DEI33336D 1928-01-28 1928-01-28 Process for the preparation of nitrogenous Kuepen dyes Expired DE485909C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI33336D DE485909C (en) 1928-01-28 1928-01-28 Process for the preparation of nitrogenous Kuepen dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI33336D DE485909C (en) 1928-01-28 1928-01-28 Process for the preparation of nitrogenous Kuepen dyes

Publications (1)

Publication Number Publication Date
DE485909C true DE485909C (en) 1929-11-06

Family

ID=7188392

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI33336D Expired DE485909C (en) 1928-01-28 1928-01-28 Process for the preparation of nitrogenous Kuepen dyes

Country Status (1)

Country Link
DE (1) DE485909C (en)

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