DE486766C - Process for the preparation of polynuclear hydrocarbons of the anthracene series - Google Patents

Process for the preparation of polynuclear hydrocarbons of the anthracene series

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Publication number
DE486766C
DE486766C DEF59172D DEF0059172D DE486766C DE 486766 C DE486766 C DE 486766C DE F59172 D DEF59172 D DE F59172D DE F0059172 D DEF0059172 D DE F0059172D DE 486766 C DE486766 C DE 486766C
Authority
DE
Germany
Prior art keywords
preparation
hydrocarbons
anthracene series
polynuclear hydrocarbons
anthracene
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
DEF59172D
Other languages
German (de)
Inventor
Dr Otto Nicodemus
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 DEF59172D priority Critical patent/DE486766C/en
Application granted granted Critical
Publication of DE486766C publication Critical patent/DE486766C/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
    • C09B3/00Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/20Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/42Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor
    • C07C5/48Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor with oxygen as an acceptor
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2603/00Systems containing at least three condensed rings
    • C07C2603/02Ortho- or ortho- and peri-condensed systems
    • C07C2603/04Ortho- or ortho- and peri-condensed systems containing three rings
    • C07C2603/22Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
    • C07C2603/24Anthracenes; Hydrogenated anthracenes

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

Description

Verfahren zur Darstellung mehrkerniger Kohlenwasserstoffe der Anthracenreihe Es ist bekannt, daß Kohlenwasserstoffe, die o-ständige Methyl- oder Methylengruppen enthalten, durch hohe Temperaturen zerfallen und neben anderen Produkten auch Ringschlüsse zeigen, die zu Anthracen und Methylanthracen führen. Bei diesen pyrogenetischen Zersetzungen treten die verschiedensten Zerfallprodukte auf, wobei stets die reichliche Bildung von '\#"asserstoff beobachtet wird. Die Ausbeuten an Anthracen bzw. Methylanthracen sind zu gering, um technische Verfahren darauf gründen zu können. Auch durch die Gegenwart von Kontakten wird diese Ausbeute nicht gesteigert. Ebenfalls ändert der Zusatz von Luft hieran nichts, vielmehr wird in der Literatur betont, daß Luft direkt vergiftend und kontaktschädigend wirkt.Process for the preparation of polynuclear hydrocarbons of the anthracene series It is known that hydrocarbons, the o-position methyl or methylene groups contain, disintegrate due to high temperatures and, among other products, also ring closures show that lead to anthracene and methylanthracene. With these pyrogenetic The most varied of decomposition products occur, always the abundant one Formation of hydrogen is observed. The yields of anthracene or methyl anthracene are too small to be able to base technical processes on them. Also through the The presence of contacts does not increase this yield. Also changes Nothing is added to this; rather, it is emphasized in the literature that air is direct has a poisoning and contact damaging effect.

Es wurde überraschenderweise gefunden, daß mehrkernige Kohlenwasserstoffe und ihre Substitutionsprodukte vom Typus der Di- oder Triarylmethane mit o-ständiger Methy 1- oder Methylengruppe zu Ringschlüssen mit guter technischer Ausbeute befähigt sind, wenn man diese Körper bei erhöhter Temperatur, mit Sauerstoff oder -sauerstoffabgebenden Mitteln gemischt, über hochporöse Körper in Gegenwart von Oxydationskatalysatoren leitet. Hierbei ist es wesentlich, darauf zu achten, daß das Oxydationsmittel im Überschuß vorhanden ist, um das Auftreten von Wässerstoff zu verhindern. Beispiele z. Durch ein kupfernes Kontaktgefäß, welches mit einer hochaktiven Kohle gefüllt ist, die gleichzeitig noch Mangan-Kobaltoxyde eingelagert enthält, werden bei 400' die Dämpfe von m-Xylylphenylmethan, Sp. 3o5-, mit überschüssiger Luft gemischt, geleitet. Das aus dem Kontakt austretende Reaktionsprodukt wird kondensiert, von dem gebildeten Wasser getrennt, abgepreßt und aus Eisessig umkristallisiert. Man erhält 40% des Ausgangsmaterials an 3-Methylanthracen vom Schmelzpunkt 201'; das unveränderte Xylylphenylmethan wird dem Reaktionsraum wieder zugeführt.It has surprisingly been found that polynuclear hydrocarbons and their substitution products of the di- or triarylmethane type with an o-position Methy 1- or methylene group capable of ring closures with good technical yield are when these bodies are at elevated temperature, with oxygen or oxygen-releasing Mixed agents, over highly porous bodies in the presence of oxidation catalysts directs. It is essential to ensure that the oxidizing agent is in the Excess is present to prevent the occurrence of hydrogen. Examples z. Through a copper contact vessel, which is filled with a highly active carbon which contains manganese-cobalt oxides at the same time, at 400 ' the vapors of m-xylylphenylmethane, Sp. 3o5-, mixed with excess air, directed. The reaction product emerging from the contact is condensed by separated from the water formed, pressed and recrystallized from glacial acetic acid. Man receives 40% of the starting material in 3-methylanthracene with a melting point of 201 '; the unchanged xylylphenylmethane is fed back into the reaction chamber.

Silica-Gel wird zu 2o0/, seines Gewichtes mit Kupfernitrat beladen und geglüht, bis keine Stickoxyde mehr frei werden. Über diesen Kupferoxydkontakt werden bei 32o' die Dämpfe von p-Xylylphenylmethan, mit Luft gemischt, geleitet. Das zu einem Kuchen erstarrte Reaktionsprodukt wird von dem gebildeten Wasser getrennt und aus Eisessig kristallisiert, man erhält so 30°/o des Ausgangsmaterials !.-Methylanthracen ; das unveränderte Ausgangsmaterial kehrt in den Prozeß zurück.Silica gel is loaded with copper nitrate to 20% of its weight and annealed until no more nitrogen oxides are released. About this copper oxide contact the vapors of p-xylylphenylmethane mixed with air are passed at 32o '. The reaction product solidified into a cake is separated from the water formed and crystallized from glacial acetic acid, 30% of the starting material is thus obtained! - methylanthracene ; the unchanged starting material is returned to the process.

3. Über hochaktive Kohle; die Manganoxyd-Kupferoxyd eingelegt enthält, werden bei 350' die Dämpfe von u.-Benzyl-ü-rnethylnaphthalin geleitet. Das Reaktionsprodukt wird wie in Beispiel 2 aufgearbeitet und ergibt zu 400o der Theorie Naphthanthracen vom Fp. 167'. .3. About high active charcoal; which contains manganese oxide-copper oxide inlaid, the vapors of u-benzyl-u-methylnaphthalene are conducted at 350 '. The reaction product is worked up as in Example 2 and yields naphthanthracene with a melting point of 167 'at 400o of theory. .

4. Über den gleichen Kontakt wie in Beispiel 3 werden bei 38o' die Dämpfe von m-Dixylylphenylmethan, Kp. 2ro °, zo mm, mit Luft gemischt, geleitet und das Reaktionsprodukt wie in Beispiel e aufgearbeitet. Man erhält aus Eisessig umkristallisiert das gebildete 9-Xylyl-a-methylanthracen in glänzenden, gelblichweißen Blättchen vom Fp. 224°. Die Analyse ergab 93,240/,C 66,840/,H, berechnet: 93,2 % C 6,8 % H.4. Via the same contact as in Example 3, the vapors of m-dixylylphenylmethane, bp. The 9-xylyl-a-methylanthracene formed is obtained recrystallized from glacial acetic acid in glossy, yellowish-white flakes with a melting point of 224 °. The analysis gave 93.240 /, C 66.840 /, H, calculated: 93.2 % C 6.8% H.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung mehrkerniger Kohlenwasserstoffe der Anthracenreihe und ihrer Substitutionsprodukte aus Kohlenwasserstoffen vom Typus der Di- oder Triarylmethane, welche in o-Stellung zum Methankohlenstoff eine Methyl- oder Methylengruppe enthalten, dadurch gekennzeichnet, daß man diese Stoffe bei erhöhter Temperatur, mit Sauerstoff oder sauerstoffabgebenden Mittehe im Überschuß gemischt, über hochporöse Körper in Gegenwart von Oxydationskatalysatoren leitet.PATENT CLAIM: Process for the preparation of polynuclear hydrocarbons the anthracene series and their substitution products from hydrocarbons of the type the di- or triarylmethanes, which in the o-position to the methane carbon are a methyl or contain methylene group, characterized in that these substances are used in elevated temperature, with oxygen or oxygen-releasing agent in excess mixed, conducts over highly porous bodies in the presence of oxidation catalysts.
DEF59172D 1925-06-22 1925-06-23 Process for the preparation of polynuclear hydrocarbons of the anthracene series Expired DE486766C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF59172D DE486766C (en) 1925-06-22 1925-06-23 Process for the preparation of polynuclear hydrocarbons of the anthracene series

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE253911X 1925-06-22
DEF59172D DE486766C (en) 1925-06-22 1925-06-23 Process for the preparation of polynuclear hydrocarbons of the anthracene series

Publications (1)

Publication Number Publication Date
DE486766C true DE486766C (en) 1929-11-25

Family

ID=25769338

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF59172D Expired DE486766C (en) 1925-06-22 1925-06-23 Process for the preparation of polynuclear hydrocarbons of the anthracene series

Country Status (1)

Country Link
DE (1) DE486766C (en)

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