DE544522C - Process for the production of anthraquinone and anthraquinone derivatives - Google Patents

Process for the production of anthraquinone and anthraquinone derivatives

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Publication number
DE544522C
DE544522C DEI38416D DEI0038416D DE544522C DE 544522 C DE544522 C DE 544522C DE I38416 D DEI38416 D DE I38416D DE I0038416 D DEI0038416 D DE I0038416D DE 544522 C DE544522 C DE 544522C
Authority
DE
Germany
Prior art keywords
anthraquinone
parts
weight
derivatives
production
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
DEI38416D
Other languages
German (de)
Inventor
Dr Hugo Dieterle
Dr Georg Kraenzlein
Dr Heinrich Vollmann
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 DEI38416D priority Critical patent/DE544522C/en
Application granted granted Critical
Publication of DE544522C publication Critical patent/DE544522C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00Preparation of quinones

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

Description

Verfahren zur Herstellung von Anthrachinon und Anthrachinonderivaten Es ist bekannt, daß bei der Einwirkung von i # 3-Butadien auf Chinone, wie Benzochinon oder Naphthochinon, Anlagerungsverbindungen entstehen, welche das Kohlenstoftgerüst des Anthracens enthalten.Process for the production of anthraquinone and anthraquinone derivatives It is known that when quinones such as benzoquinone are acted upon by i # 3-butadiene or naphthoquinone, addition compounds are formed which form the carbon structure of anthracene.

Es wurde nun gefunden, daß man direkt und mit ausgezeichneten Ausbeuten Anthrachinone erhält, wenn man Chinone, wie .Benzochinon oder Naphthochinon, oder chinonartige Verbindungen, deren Derivate oder Substitutionsprodukte mit aliphatischen, ungesättigten Verbindungen, die ein System konjugierter Doppelbindungen enthalten, bei Gegenwart eines dehydrierend wirkenden Mittels kondensiert. Als geeignete Dehydrierungsmittel kommen sowohl organische Mittel, wie Nitrobenzol und seine Derivate, als auch anorganische Mittel, wie Eisenchlorid, in Betracht. Die Kondensation wird durch Erhitzen, beispielsweise bei Temperaturen zwischen So und 2oo°, gegebenenfalls unter Druck, vorgenommen.It has now been found that one can directly and with excellent yields Anthraquinones are obtained by using quinones, such as benzoquinone or naphthoquinone, or quinone-like compounds, their derivatives or substitution products with aliphatic, unsaturated compounds that contain a system of conjugated double bonds, condensed in the presence of a dehydrating agent. As suitable dehydrating agents Both organic agents, such as nitrobenzene and its derivatives, and inorganic ones come in Agents such as ferric chloride can be considered. The condensation is caused by heating, for example at temperatures between 50 and 200 °, optionally under pressure.

Die technische Darstellungsweise von Anthrachinonen aus Benzo- oder Naphthochinonen wird durch das vorliegende, nur in einer Operation arbeitende Verfahren in erheblicher Weise vereinfacht, zumal das neue Verfahren mit durchschnittlichen Ausbeuten von über So °4 arbeitet. Beispiele i. 5o Gewichtsteile Naphthochinon werden mit 25 Gewichtsteilen Butadien und 3oo Gewichtsteilen Nitrobenzol in einem geschlossenen Gefäß während. 2 Stunden bei i4o° verrührt. Beim Absaugen nach dem Erkalten hinterbleibt gut kristallisiertes reines Anthrachinon. Man wäscht mit Benzol, bis der Ablauf farblos ist. Ausbeute über So %.The technical method of preparation of anthraquinones from benzo- or naphthoquinones is considerably simplified by the present process, which only works in one operation, especially since the new process works with average yields of more than So ° 4. Examples i. 50 parts by weight of naphthoquinone are mixed with 25 parts by weight of butadiene and 300 parts by weight of nitrobenzene in a closed vessel during. Stirred for 2 hours at 140 °. When suctioned off after cooling, well-crystallized pure anthraquinone remains. Wash with benzene until the drain is colorless. Yield over So % .

2. ioo Gewichtsteile Naphthazarin werden mit 6o Gewichtsteilen 2 # 3-Dimethylbutadien und 500 Volumenteilen Nitrobenzol in einem verschlossenen Gefäß während 2 bis 3 Stunden auf etwa 1q.0° erwärmt. Nach dem Erkalten wird der Ansatz abgesaugt und das in orangen, flachen Kriställchen hinterbleibende 6 # 7-Dimethylchinizarin mit Alkohol gut gewaschen. Das 6 # 7-Dimethylcliinizarin kristallisiert aus Xylol in langen, orangen Nadeln vom Schmelzpunkt 22i°. Die Lösungsfarbe in konzentrierter Schwefelsäure ist blatistichigrot.2. 100 parts by weight of naphthazarine are heated with 60 parts by weight of 2 # 3-dimethylbutadiene and 500 parts by volume of nitrobenzene in a closed vessel to about 1q.0 ° for 2 to 3 hours. After cooling, the batch is filtered off with suction and the 6 # 7-dimethylquinizarin which remains in the form of orange, flat crystals is washed well with alcohol. The 6 # 7-Dimethylcliinizarin crystallizes from xylene in long, orange needles with a melting point of 22 °. The solution color in concentrated sulfuric acid is pale red.

3. Zoo Gewichtsteile Naphtliazarin erwärmt man, wie in den vorhergehenden Beispielen angegeben, mit iooo Volumenteilen Nitrobenzol und ioo Gewichtsteilen Isopren ¢ Stunden auf 12o bis 1.I0°. Das wie oben in vorzüglicher Ausbeute erhältliche Kondensations- Produkt ist identisch mit 6-Methylchinizarin. (Schmelzpunkt de's=-''sülilirii"eten Produktes. I770.) ^ . . - - -..'.3. Zoo parts by weight of naphtliazarin are heated, as in the preceding Examples given, with 100 parts by volume of nitrobenzene and 100 parts by weight Isoprene ¢ hours at 12o to 10o °. The one obtainable in excellent yield as above Condensation Product is identical to 6-methylquinizarin. (Melting point de's = - '' sülilirii "eten product. I770.) ^.. - - - .. '.

4. ioo Gewichtsteile Naplifhochinon werden mit aoo Gewichtsteilen Xylol, ioo Gewichtsteilen p-Nitrotoluol - und- 5ö Gewichtsteilen Isopren während 4 Stunden bei ioö bis 15o° im geschlossenen Gefäß verrührt. Das nach dein. Erkalten abgesaugte Kondensationsprodukt ist 2-Methylanthrachinon. Beim Einengen der Mutterlauge wird ebenfalls noch 2-Methylanthrächinon erhalten.4. 100 parts by weight of naplifhochinone are combined with aoo parts by weight Xylene, 100 parts by weight of p-nitrotoluene - and 50 parts by weight of isoprene during Stirred for 4 hours at 10 ° to 150 ° in a closed vessel. That after your. Cool down The condensation product removed by suction is 2-methylanthraquinone. When concentrating the mother liquor 2-methylanthraquinone is also obtained.

5. 4o Gewichtsteile Benzochinon werden mit 7o Gewichtsteilen 2 # 3-Dimethylbutadien und 3oo Gewichtsteilen Nitrobenzol 4 Stunden bei r4o bis i5o° verrührt, zweckmäßig in einem geschlossenen Gefäß. Anschließend erhitzt man noch unter Rückflußkühlung während % bis 'I_ Stunde und- läßt erkalten. Das Kondensationsprodukt wird abgesaugt und init-Alkohol gewaschen. - Es ist, nach seinen Eigenschaften zu schließen, vermutlich 2 #-3 # 6 . 7-Tetramethylanthrachi= non. Es - kristallisiert aus Nitrobenzol in schwach- graugelblichen 1Tädelchen-vom -F. P. 2900.5. 40 parts by weight of benzoquinone are mixed with 70 parts by weight of 2 # 3-dimethylbutadiene and 300 parts by weight of nitrobenzene stirred for 4 hours at between 40 and 150 °, appropriate in a closed vessel. The mixture is then heated under reflux cooling during% to 'I_ hour and- lets cool down. The condensation product is filtered off with suction and washed in alcohol. - It is, presumably, inferred from its properties 2 # -3 # 6. 7-tetramethylanthrachi = non. It - crystallizes from nitrobenzene in pale gray-yellowish 1Tädelchen-vom -F. P. 2900.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von Anthrächinon und Anthrachinonderivaten, dadurch ,gekennzeichnet, daß man Chinone oder chinonartige Verbindungen, deren Derivate oder Substitutionsprödukte mit äliphatischen, ungesättigten Verbindungen; die ein System konjugierter Doppel-- hindungen enthalten, - durch- Erhitzen in Gegenwart eines dehydrierend wirkenden Mittels, gegebenenfalls unter Druck, kondensiert.PATENT CLAIM: Process for the preparation of anthraquinone and anthraquinone derivatives, characterized in that quinones or quinone-like compounds, their derivatives or substitution products with aliphatic, unsaturated compounds; the A System of conjugated double - elements contain - by - heating in the presence a dehydrating agent, optionally under pressure, condensed.
DEI38416D 1929-06-19 1929-06-19 Process for the production of anthraquinone and anthraquinone derivatives Expired DE544522C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI38416D DE544522C (en) 1929-06-19 1929-06-19 Process for the production of anthraquinone and anthraquinone derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI38416D DE544522C (en) 1929-06-19 1929-06-19 Process for the production of anthraquinone and anthraquinone derivatives

Publications (1)

Publication Number Publication Date
DE544522C true DE544522C (en) 1932-02-19

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DEI38416D Expired DE544522C (en) 1929-06-19 1929-06-19 Process for the production of anthraquinone and anthraquinone derivatives

Country Status (1)

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DE (1) DE544522C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1219466B (en) * 1961-04-03 1966-06-23 Edogawa Kagaku Kogyo Kabushiki Process for the preparation of an optionally alkyl-substituted anthraquinone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1219466B (en) * 1961-04-03 1966-06-23 Edogawa Kagaku Kogyo Kabushiki Process for the preparation of an optionally alkyl-substituted anthraquinone

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