DE459365C - Process for the preparation of nitrogen-containing anthraquinone derivatives - Google Patents

Process for the preparation of nitrogen-containing anthraquinone derivatives

Info

Publication number
DE459365C
DE459365C DEF60082D DEF0060082D DE459365C DE 459365 C DE459365 C DE 459365C DE F60082 D DEF60082 D DE F60082D DE F0060082 D DEF0060082 D DE F0060082D DE 459365 C DE459365 C DE 459365C
Authority
DE
Germany
Prior art keywords
nitrogen
preparation
formaldehyde
anthraquinone derivatives
containing anthraquinone
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
DEF60082D
Other languages
German (de)
Inventor
Dr Robert Berliner
Dr Robert Emanuel 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.)
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 DEF60082D priority Critical patent/DE459365C/en
Application granted granted Critical
Publication of DE459365C publication Critical patent/DE459365C/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
    • C09B1/26Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/28Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups

Landscapes

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

Description

Verfahren zur Darstellung von stickstoffhaltigen Anthrachinonderivaten. Durch Patent 459 364 ist ein Verfahren geschützt, nach welchem die im Patent 455 822 der Klasse 22b beschriebenen Kondensationsprodukte aus a-Aminoanthrachinonen oder deren Derivaten und Formaldehyd der Reihe II in leicht Formaldehyd abspaltende Produkte übergeführt werden. Das Verfahren besteht darin, daß man die Verbindungen der Reihe II mit Oxydationsmitteln behandelt.Process for the preparation of nitrogen-containing anthraquinone derivatives. Patent 459 364 protects a process according to which the condensation products of α-aminoanthraquinones or their derivatives and formaldehyde of series II described in patent 455 822 of class 22b are converted into products which easily split off formaldehyde. The procedure consists in treating the compounds of series II with oxidizing agents.

Es wurde nun weiter gefunden, daß die so erhältlichen Verbindungen, aus denen das zweite Molekül Formaldehyd leicht abspaltbar ist, durch Behandeln mit hydrolysierenden Mitteln, wie Wasser, unter Formaldehydabspaltung die ebenfalls nach .dem Verfahren des Patents 455822 erhältlichen Verbindungen der Reihe I bilden. Diese Umwandlung ist von technischer Bedeutung, da für gewisse Verwendungszwecke die Verbindungen der Reihe I wertvoller sind als die der Reihe II.It has now been found that the compounds obtainable in this way, from which the second molecule of formaldehyde can easily be split off , form the compounds of series I also obtainable by the process of patent 455822 by treatment with hydrolyzing agents, such as water, with splitting off of formaldehyde. This conversion is of technical importance because for certain uses the compounds of series I are more valuable than those of series II.

Zur Abspaltung des Formaldehyds aus den durch Oxydation erhaltenen Umwandlungsprodukten ist eis nicht notwendig, diese erst abzuscheiden. Man kann die Oxydation und die Abspaltung von Formaldehyd auch in einem zusammenhängenden Arbeitsgang bewirken. -Beispiel i. Die nach dem Verfahren des Patents 459 364 (Beispiel i) erhaltenen Kristalle werden nach dem Waschen mit Schwefelsäure von 65 % unmittelbar auf der Nutsche mit Wasser neutral gewaschen.' Im Wascliwas-Ser finden sich jetzt reichliche Mengen Formaldehyd. Die Kristalle ändern bei dieser Maßnahme die Kristallform nicht, aber während sie sich vor dem Waschen mit Wasser in Schwefelsäure mit brauner Farbe lösten, lösen sie sich jetzt mit grüner Farbe und sind identisch mit der Verbindung der Reihe I (vgl. Beispiel 2 des Patents 455 g22), die so in großer Reinheit erhalten wird. Beispiel 2. Die nach Patent 459 364 (Beispiel 2) erhaltene Oxydationsschmelze wird ohne Abtrennung des Braunsteins in Wasser gegossen. Der grünblaue Niederschlag wird filtriert und neutral gewaschen. Er ist identisch mit dem nach Beispiel. i :erhaltenen Endprodukt. Das in der Oxydationsschmelze in Schwefelsäure braun lösliche Umwandlungsprodukt hat beim Eingießen der Schmelze in Wasser Formaldehyd abgespalten. . B@ei,si@@l 3. -4 Gevdchtsteile des -Kondensationsproduktes aus i, 4-Diamino@anthrachinon und Formaldehyd (erhältlich nach Patent 455 822, Beispiel 9) werden in ioo Gewichtsteilen konzentrierter Schwefelsäure gelöst und etwa i Stunde auf 7o bis 8o° erwärmt, bis die anfangs dichroitische Färbung der Lösung in Braun übergegangen ist und das Spektrum des Ausgangsstoffes verschwunden ist. Diese das Oxydationsprodukt enthaltende Schmelze wird in Wasser gegossen. Der Niederschlag wird filtriert, gewaschen und getrocknet. Das dunkle Pulver löst sich in Schwefelsäure grünoliv und ist identisch mit der nach Beispiel 8 des Patents 455 822 erhältlichenVerbindung.For splitting off the formaldehyde from those obtained by oxidation Conversion products are not necessary to separate these first. One can the oxidation and the elimination of formaldehyde also in one connected Cause operation. -Example i. According to the procedure of patent 459 364 (example i) Crystals obtained are immediately after washing with sulfuric acid of 65% Washed neutral on the suction filter with water. ' In Wascliwas-Ser are now found copious amounts of formaldehyde. With this measure, the crystals change their crystal shape not, but while it is before washing with water in sulfuric acid with brown Color loosened, they are now loosening with green color and are identical to the connection of series I (see. Example 2 of patent 455 g22), which are obtained in this way in great purity will. Example 2. The oxidizing melt obtained according to Patent 459,364 (Example 2) is poured into water without separating the brown stone. The green-blue precipitation is filtered and washed neutral. It is identical to the one in the example. i : final product obtained. That which is brown soluble in sulfuric acid in the oxidizing melt The conversion product split off formaldehyde when the melt was poured into water. . B @ ei, si @@ l 3. -4 parts by weight of the condensation product from i, 4-diamino @ anthraquinone and formaldehyde (obtainable according to patent 455,822, example 9) are in 100 parts by weight Dissolved concentrated sulfuric acid and heated to 7o to 8o ° for about 1 hour until the initially dichroic coloration of the solution has changed to brown and the spectrum of the starting material has disappeared. This melt containing the oxidation product is poured into water. The precipitate is filtered, washed and dried. The dark powder dissolves in sulfuric acid green-olive and is identical to the Compound obtainable according to example 8 of patent 455,822.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von stickstoffhaltigen Anthrachinonderivaten, darin bestehend, daB man die nach dem Verfahren des Patents 459 364 erhältlichen Oxydationsprodukte mit Wasser oder anderen hydrolysierend wirkenden Mitteln behandelt.PATENT CLAIM: Process for the preparation of nitrogen-containing anthraquinone derivatives, consisting in that one obtainable by the method of patent 459,364 Oxidation products treated with water or other hydrolysing agents.
DEF60082D 1924-12-10 1924-12-10 Process for the preparation of nitrogen-containing anthraquinone derivatives Expired DE459365C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF60082D DE459365C (en) 1924-12-10 1924-12-10 Process for the preparation of nitrogen-containing anthraquinone derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF60082D DE459365C (en) 1924-12-10 1924-12-10 Process for the preparation of nitrogen-containing anthraquinone derivatives

Publications (1)

Publication Number Publication Date
DE459365C true DE459365C (en) 1928-05-02

Family

ID=7108976

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF60082D Expired DE459365C (en) 1924-12-10 1924-12-10 Process for the preparation of nitrogen-containing anthraquinone derivatives

Country Status (1)

Country Link
DE (1) DE459365C (en)

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