DE500520C - Process for the preparation of nitrogen-containing condensation products of the benzanthrone series - Google Patents

Process for the preparation of nitrogen-containing condensation products of the benzanthrone series

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Publication number
DE500520C
DE500520C DEI31727D DEI0031727D DE500520C DE 500520 C DE500520 C DE 500520C DE I31727 D DEI31727 D DE I31727D DE I0031727 D DEI0031727 D DE I0031727D DE 500520 C DE500520 C DE 500520C
Authority
DE
Germany
Prior art keywords
condensation products
nitrogen
preparation
containing condensation
weight
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
DEI31727D
Other languages
German (de)
Inventor
Dr Theodor Meissner
Dr Karl Thiess
Dr Karl Wilke
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 DEI31727D priority Critical patent/DE500520C/en
Application granted granted Critical
Publication of DE500520C publication Critical patent/DE500520C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D231/00Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/54Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings condensed with carbocyclic rings or ring systems

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

Description

Verfahren zur Darstellung von stickstoffhaltigen Kondensationsprodukten der Benzanthronreihe Durch das Hauptpatent q.68 896 ist ein Verfahren zur Darstellung stickstoffhaltiger Kondensationsprodukte .der Benzanthronreihe geschützt, das darin besteht, daß man Bzhalogensubstituierte Benzanthrone oder ihre Derivate mit primären oder sekundären Basen erhitzt.Process for the preparation of nitrogen-containing condensation products the benzanthrone series by the main patent q.68 896 is a method for the representation nitrogen-containing condensation products. of the benzanthrone series protected that in it consists that one Bzhalogensubstituierte benzanthrones or their derivatives with primary or secondary bases heated.

Es wurde nun gefunden, daB die Metallverbindungen des Pyrazolanthrons, wie z. B. Pyrazolanthronkalium sich auch mit Bz-I-Nltrobenzanthron sowie mit dessen Derivaten oder Substitutionsprodukten unter Abscheidung von Salzen der salpetrigen Säure umsetzen zu Kondensationsprodukten, die vermutlich die gleiche Konstitution besitzen wie die aus Bz-i-Brombenzanthronen und Pyrazolanthronen erhältlichen Verbindungen .des Hauptpatents.It has now been found that the metal compounds of pyrazolanthrone, e.g. B. pyrazole anthrone potassium also with Bz-I-Nltrobenzanthron as well as with its derivatives or substitution products with the separation of salts of nitrous acid to form condensation products which presumably have the same constitution as the compounds obtainable from Bz-i-bromobenzanthrones and pyrazole anthrones .des main patent.

Die Reaktion wird zweckmäßig unter Verwendung eines organischen Lösungsmittels durchgeführt. Anstatt vom fertiggebildeten Salz des Pyrazolanthrons auszugehen, kann man die Bildung des letzteren mit der Reaktion verbinden. Die Kondensationsprodukte sollen zur Darstellung von - Farbstoffen verwendet werden. Beispiele i. 22 Gewichtsteile Pyrazolanthron werden mit 15 Gewichtsteilen entwässertem Kaliumcarbonat innig vermahlen und in 25o Gewichtsteile Nitrobenzol eingerührt. Man verrührt zunächst bei gewöhnlicher Temperatur, dann einige Stunden unter Kochen, wobei die Mischung einheitlich rot wird. Nach Zufügen von 31 Gewichtsteilen Bz-i-Nitrobenzanthron hält man io Stunden unter weiterem Rühren im Sieden. Das Reaktionsprodukt wird nach dem Erkalten abgesaugt, zunächst mit Nitrobenzol, dann mit Alkohol und heißem Wasser gewaschen und getrocknet. Schmelzpunkt über 39o°. Die Lösungsfarbe des gelben Kristallpulvers in konzentrierter Schwefelsäure ist gelbstichigrot. In organischen Lösungsmitteln löst es sich mit braungelber Farbe.The reaction is conveniently carried out using an organic solvent carried out. Instead of starting from the finished salt of the pyrazolanthrone, one can combine the formation of the latter with the reaction. The condensation products should be used to represent - dyes. Examples i. 22 parts by weight Pyrazolanthrone are intimately ground with 15 parts by weight of dehydrated potassium carbonate and stirred into 250 parts by weight of nitrobenzene. At first you stir in the ordinary Temperature, then boiling for a few hours, the mixture turning uniformly red will. After adding 31 parts by weight of Bz-i-nitrobenzanthrone, it is held for 10 hours with further stirring at the boil. The reaction product is sucked off after cooling, washed first with nitrobenzene, then with alcohol and hot water and dried. Melting point over 39o °. The solution color of the yellow crystal powder in concentrated Sulfuric acid is yellowish red. It dissolves in organic solvents brownish yellow color.

2. Ersetzt man im Beispiel i die dort verwendeten 22 Gewichtsteile Pyrazolanthron durch 23 Gewichtsteile 4-Methylpyrazolanthron, so erhält man ein braungelbes Kondensationsprodukt vom Schmelzpunkt 33o°. 3. Ein inniges Gemenge von 22 Gewichtsteilen Pyrazolanthron und 8 Gewichtsteilen trockenem Kaliumcarbonat wird in 5oo Gewichtsteilen Nitrobenzol i Stunde lang bei 17o bis i8o° verrührt, bis das rote Kaliumsalz des Pyrazolanthrons gebildet und das entstandene Wasser verdampft ist. Dann werden 32 Gewichtsteile Dinitrobenzanthron vorn Schmelzpunkt 268° (vgl. B. Zusatz Nr. 6435 zur französischen Patentschrift 349 531, Beispiel 5) eingetragen und das Gemisch i bis 2 Stunden bei 2oo° nachgerührt. Die rote Farbe des Kaliumsalzes verschwindet rasch. Die Lösung nimmt eine kräftig braungelbe Farbe an. Beim Erkalten scheidet sich das gebildete Nitrobenzanthronylpyrazolanthron aus. Nachdem Verdünnen mit Alkohol wird filtriert, mit Alkohol und heißem Wasser ausgewaschen und getrocknet. Das Rohprodukt bildet ein orangegelbes Pulver, das bei 350 bis 36o° schmilzt. Durch nochmaliges Umkristallisieren aus Nitrobenzol erhält man orangerote Kristalle, die gegen 400° schmelzen. Konzentrierte Schwefelsäure löst das Produkt mit gelbstichig roter Farbe.2. If the 22 parts by weight of pyrazole anthrone used there are replaced by 23 parts by weight of 4-methylpyrazole anthrone in Example i, a brownish-yellow condensation product with a melting point of 330 ° is obtained. 3. An intimate mixture of 22 parts by weight of pyrazolanthrone and 8 parts by weight of dry potassium carbonate is stirred in 500 parts by weight of nitrobenzene for one hour at 170 to 180 ° until the red potassium salt of pyrazolanthrone has formed and the water that has formed has evaporated. Then 32 parts by weight of dinitrobenzanthrone with a melting point of 268 ° (cf. B. Addendum No. 6435 to French Patent 349 531, Example 5) are added and the mixture is stirred for 1 to 2 hours at 200 °. The red color of the potassium salt disappears quickly. The solution takes on a strong brownish yellow color. When cooling down, the nitrobenzanthronylpyrazolanthrone formed separates out. After diluting with alcohol, it is filtered, washed with alcohol and hot water and dried. The crude product forms an orange-yellow powder that melts at 350 to 36o °. Another recrystallization from nitrobenzene gives orange-red crystals which melt towards 400 °. Concentrated sulfuric acid dissolves the product with a yellowish red color.

Claims (1)

PATENTANSPRUCH: Abänderung des durch Patent 468 896 geschützten Verfahrens zur Darstellung von stickstoffhaltigen Kondensationsprodukten der Benzanthronreihe, darin bestehend, daß man hier Bz-i-Nitrobenzanthrone, deren Derivate oder Substitutionsprodukte mit Metallverbindungen des Pyrazolanthrons oder seiner Substitutionsprodukte umsetzt.PATENT CLAIM: Modification of the process protected by patent 468 896 for the representation of nitrogen-containing condensation products of the benzanthrone series, consisting in the fact that Bz-i-nitrobenzanthrones, their derivatives or substitution products are used here with metal compounds of pyrazolanthrone or its substitution products.
DEI31727D 1927-07-19 1927-07-19 Process for the preparation of nitrogen-containing condensation products of the benzanthrone series Expired DE500520C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI31727D DE500520C (en) 1927-07-19 1927-07-19 Process for the preparation of nitrogen-containing condensation products of the benzanthrone series

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI31727D DE500520C (en) 1927-07-19 1927-07-19 Process for the preparation of nitrogen-containing condensation products of the benzanthrone series

Publications (1)

Publication Number Publication Date
DE500520C true DE500520C (en) 1930-06-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEI31727D Expired DE500520C (en) 1927-07-19 1927-07-19 Process for the preparation of nitrogen-containing condensation products of the benzanthrone series

Country Status (1)

Country Link
DE (1) DE500520C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258411B (en) * 1962-04-14 1968-01-11 Hoechst Ag Process for the preparation of benzanthronyl-pyrazole-anthrones

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258411B (en) * 1962-04-14 1968-01-11 Hoechst Ag Process for the preparation of benzanthronyl-pyrazole-anthrones

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