CH200479A - Process for the preparation of a phenanthroline derivative. - Google Patents

Process for the preparation of a phenanthroline derivative.

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Publication number
CH200479A
CH200479A CH200479DA CH200479A CH 200479 A CH200479 A CH 200479A CH 200479D A CH200479D A CH 200479DA CH 200479 A CH200479 A CH 200479A
Authority
CH
Switzerland
Prior art keywords
dimethyl
phenanthroline derivative
preparation
phenol
phenanthroline
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 CH200479A publication Critical patent/CH200479A/en

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Description

  

  Verfahren zur Herstellung eines     Phenanthrolinabkömmlings.       Es wurde gefunden, dass man zu einem  neuen, technisch wertvollen     Phenanthrolin-          abkömmling    gelangt, wenn man 2 . 2'-     Di-          methyl-4.4'-dihalogen-p-phenanthrolin    mit  einem     Phenolat    zu dem     2.2'-Dimethyl-4.4'-          bisphenogy    - p -     phenanthrolin    umsetzt. Das       Phenolat    kann man auch in der Reaktions  mischung aus Phenol in an sich üblicher  Weise entstehen lassen.

   Die Umsetzung kann  in Gegenwart eines Löse- oder Verdünnungs  mittels bei höherer Temperatur, erforderlichen  falls unter Druck erfolgen. Als Löse- oder  Verdünnungsmittel wird vorzugsweise Phenol  verwendet. Als     Phenolat    kommen vorzugs  weise die     Alkalimetallverbindungen    in Be  tracht.  



  Die neue Verbindung bildet farblose Kri  stalle vom F.     182-183.    Sie zeichnet sich  durch schmerzstillende Wirkung aus und soll  therapeutische Anwendung finden.  



  <I>Beispiel 1:</I>  10 g     2.2'-Dimethyl-4.4'-dichlor-p-phen-          anthrolin    werden mit 50 g Phenol und 10 g      wasserfreiem, technischem     -Kaliumcarbonat     gemischt. Die Mischung     w'rd    6 bis 8 Stun  den auf 140-1500 erhitzt. Nach dem Ab  destillieren des überschüssigen Phenols mit  Wasserdampf scheidet sich aus der heissen,       wässrigen    Lösung das Umsetzungsgut als ein  beim Abkühlen leicht kristallinisch erstarren  des 01 ab.

   Nach dem Absaugen, Auswaschen  und     Umkristallisieren    aus Alkohol erhält man  das     2.2'-Dimethyl-4.4'-bispheno%y-p-phen-          arrthrolin    in Form farbloser, feiner     Kriställ-          chen,    die bei<B>182-1830</B> schmelzen.  



  <I>Beispiel 2:</I>  10 g     2.2'-Dimethyl-4.4'-dichlor-p-phen-          anthrolin,    50 g Phenol, 10 g     Calciumcarbo-          nat    und 0,1g     gupfercarbonat    werden 6 Stun  den auf 140-150   erhitzt. Während des     Er-          hitzens    geht das     Calciumcarbonat    unter       gohlensäureentwicklung    und Bildung von       Calciumphenolat    in Lösung, das dann seiner  seits mit dem     Dichlorphenanthrolin    reagiert.

    Nach dem     Abdestillieren    des Phenols mit      Wasserdampf erhält man eine ölige Suspen  sion, aus der sich nach Zusatz von 5 cm'  konzentrierter Natronlauge eine kristallinische  Masse abscheidet. Nach dem Absaugen und  Waschen wird der erhaltene Niederschlag mit  Alkohol     ausgekooht;    aus der alkoholischen  Lösung erhält man beim Einengen das be  reits im Beispiel 1 beschriebene     2.2'-Di-          methyl-4.        4'-bisphenoxy-p-phenantbrolin.  



  Process for the preparation of a phenanthroline derivative. It has been found that a new, technically valuable phenanthroline derivative can be obtained if one 2. Reacts 2'-dimethyl-4.4'-dihalogen-p-phenanthroline with a phenolate to form 2.2'-dimethyl-4.4'-bisphenogy - p - phenanthroline. The phenolate can also be formed in the reaction mixture of phenol in a conventional manner.

   The reaction can be carried out in the presence of a solvent or diluent at a higher temperature, if necessary under pressure. Phenol is preferably used as a solvent or diluent. The alkali metal compounds are preferred as phenates.



  The new compound forms colorless crystals from F. 182-183. It is characterized by its analgesic effect and is intended to be used therapeutically.



  <I> Example 1: </I> 10 g of 2,2'-dimethyl-4,4'-dichloro-p-phen-anthroline are mixed with 50 g of phenol and 10 g of anhydrous, technical-grade potassium carbonate. The mixture is heated to 140-1500 for 6 to 8 hours. After the excess phenol has been distilled off with steam, the reaction material separates out of the hot, aqueous solution as an oil that solidifies slightly in a crystalline manner on cooling.

   After suctioning off, washing out and recrystallizing from alcohol, the 2,2'-dimethyl-4.4'-bispheno% y-p-phenarthroline is obtained in the form of colorless, fine crystals which melt at 182-1830.



  <I> Example 2: </I> 10 g of 2,2'-dimethyl-4.4'-dichloro-p-phen-anthroline, 50 g of phenol, 10 g of calcium carbonate and 0.1 g of copper carbonate are set to 140-150 for 6 hours heated. During the heating process, the calcium carbonate dissolves with the development of carbonic acid and the formation of calcium phenolate, which then reacts with the dichlorophenanthroline.

    After the phenol has been distilled off with steam, an oily suspension is obtained, from which a crystalline mass separates out after adding 5 cm 'of concentrated sodium hydroxide solution. After filtering off with suction and washing, the resulting precipitate is boiled out with alcohol; The 2,2'-dimethyl-4 already described in Example 1 is obtained from the alcoholic solution on concentration. 4'-bisphenoxy-p-phenantbroline.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Phen- anthrolinabkömmlings, dadurch gekennzeich net, dass man 2.2'-Dimethyl-4.4'-dihalogen- p-phenanthrolin mit einem Phenolat zu dem 2 . 2'-Dimethyl-4.4' - bisphenoxy-p-phenanthro- lin umsetzt. Die so erhältliche Verbindung bildet farb lose .Kristalle vom F. 182-183". Sie zeich net sich durch schmerzstillende Wirkung aus. PATENT CLAIM: Process for the production of a phenanthroline derivative, characterized in that 2.2'-dimethyl-4.4'-dihalogen p-phenanthroline is added to the 2. 2'-Dimethyl-4.4 '- bisphenoxy-p-phenanthro- lin converts. The compound obtained in this way forms colorless "crystals from F. 182-183". It is characterized by its analgesic effect. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man ein Phenolat ver wendet, das in der Reaktionsmischung aus Phenol entstanden ist. SUBCLAIM: Process according to claim, characterized in that a phenolate is used which has formed from phenol in the reaction mixture.
CH200479D 1936-07-08 1937-05-31 Process for the preparation of a phenanthroline derivative. CH200479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200479X 1936-07-08

Publications (1)

Publication Number Publication Date
CH200479A true CH200479A (en) 1938-10-15

Family

ID=5761288

Family Applications (1)

Application Number Title Priority Date Filing Date
CH200479D CH200479A (en) 1936-07-08 1937-05-31 Process for the preparation of a phenanthroline derivative.

Country Status (1)

Country Link
CH (1) CH200479A (en)

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