CH183885A - Process for the production of an anthraquinone derivative. - Google Patents

Process for the production of an anthraquinone derivative.

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Publication number
CH183885A
CH183885A CH183885DA CH183885A CH 183885 A CH183885 A CH 183885A CH 183885D A CH183885D A CH 183885DA CH 183885 A CH183885 A CH 183885A
Authority
CH
Switzerland
Prior art keywords
leuco
anthraquinone derivative
production
derivative
mol
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
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
Publication of CH183885A publication Critical patent/CH183885A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur     Herstellung    eines     Anthraehinonderivates.       Im Hauptpatent ist ein Verfahren zur  Herstellung eines wertvollen     Anthrachinon-          derivates    beschrieben, bei dem eine Mischung  aus etwa     äquimolekularen    Mengen von     Leuko-          1.4-        diaminoanthrachinon,        Monomethylamin     und     Monoäthanolamin    bei Gegenwart eines  Verdünnungsmittels so lange erhitzt wird, bis  kein     Leuko-1.4-diamirro-anthrachinorr    mehr       nachzuweisen    ist,

   worauf die entstandene  Verbindung oxydiert wird.  



  Es wurde nun gefunden, dass man ein  ebenfalls wertvolles     Anthrachinonderivat    er  halten kann, wenn man 1     Mol        Leuko-1.4.5-          triaminoanthrachinon    mit 2     Mol        Monomethyl-          amin        beiGegenwarteinesVerdünnungamittels,     wie Wasser, Alkohole oder Chlorbenzole, so  lange erhitzt, bis kein     Leuko-1.4.5-triamino-          anthrachinon    mehr nachzuweisen ist, worauf  die entstandene Verbindung oxydiert wird.  



  Das erhaltene     Anthrachinonderivat    liefert  auf     Acetatseide    marineblaue Färbungen.       Beispiel:     12,3 Teile     Leuko-1.4.5-triaminoanthra-          chinon    und<B>16</B> Teile einer 25     o/oigen    wässe-         rigen        Monomethylaminlösung    werden in 130  Teilen Methanol so lange unter Rühren zum  Sieden erhitzt, bis kein     Lerrko-1.4.5-triamirro-          anthrachinon    mehr nachzuweisen ist.

   Man  setzt sodann 0,5 Teile Kupferacetat und S Teile       Piperidin    zu und leitet so lange Luft oder  Sauerstoff durch die     Mischung,    bis die Oxy  dation beendet ist. Darauf lässt man abkühlen,  saugt den ausgeschiedenen Rückstand ab und  wäscht ihn mit Methanol und Wasser aus.



  Process for the preparation of an anthraquinone derivative. The main patent describes a process for the preparation of a valuable anthraquinone derivative, in which a mixture of approximately equimolecular amounts of leuco 1,4-diaminoanthraquinone, monomethylamine and monoethanolamine is heated in the presence of a diluent until no leuco-1,4-diamirro-anthraquinorr more is to be proven,

   whereupon the resulting compound is oxidized.



  It has now been found that an equally valuable anthraquinone derivative can be obtained if 1 mole of leuco-1.4.5-triaminoanthraquinone with 2 moles of monomethylamine in the presence of a diluent, such as water, alcohol or chlorobenzenes, is heated until no leuco-1.4 .5-triamino-anthraquinone can be detected more, whereupon the resulting compound is oxidized.



  The anthraquinone derivative obtained gives navy blue colorations on acetate silk. Example: 12.3 parts of leuco-1,4.5-triaminoanthraquinone and 16 parts of a 25% aqueous monomethylamine solution in 130 parts of methanol are heated to boiling with stirring until no Lerrko -1.4.5-triamirro-anthraquinone can be detected more.

   Then 0.5 parts of copper acetate and 5 parts of piperidine are added and air or oxygen is passed through the mixture until the oxidation has ended. It is then allowed to cool, the precipitated residue is filtered off with suction and washed out with methanol and water.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Anthra- chinonderivates, dadurch gekennzeichnet, dass man 1 Mol Leuko-1.4.5-triaminoanthrachinon mit 2 Mol Monomethylamin bei Gegenwart eines Verdünnungsmittels so lange erhitzt, bis kein Leuko-1.4.5-triaminoanthracbinon mehr nachzuweisen ist, und darauf die entstandene Verbindung oxydiert. Das erhaltene Antbrachinonderivat liefert auf Acetatseide marineblaue Färbungen. PATENT CLAIM: Process for the preparation of an anthrachinone derivative, characterized in that 1 mol of leuco-1.4.5-triaminoanthraquinone is heated with 2 mol of monomethylamine in the presence of a diluent until no more leuco-1.4.5-triaminoanthracbinone can be detected, and then the resulting compound is oxidized. The antbrachinone derivative obtained gives navy blue colorations on acetate silk.
CH183885D 1933-09-19 1934-09-07 Process for the production of an anthraquinone derivative. CH183885A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE183885X 1933-09-19
CH176930T 1934-09-07

Publications (1)

Publication Number Publication Date
CH183885A true CH183885A (en) 1936-04-30

Family

ID=25719917

Family Applications (1)

Application Number Title Priority Date Filing Date
CH183885D CH183885A (en) 1933-09-19 1934-09-07 Process for the production of an anthraquinone derivative.

Country Status (1)

Country Link
CH (1) CH183885A (en)

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