CH122520A - Process for the preparation of an aralkylamine. - Google Patents

Process for the preparation of an aralkylamine.

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Publication number
CH122520A
CH122520A CH122520DA CH122520A CH 122520 A CH122520 A CH 122520A CH 122520D A CH122520D A CH 122520DA CH 122520 A CH122520 A CH 122520A
Authority
CH
Switzerland
Prior art keywords
methoxybenzene
preparation
parts
aralkylamine
act
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 CH122520A publication Critical patent/CH122520A/en

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Description

  

  Verfahren zur Darstellung eines     Aralkylamins.       Es wurde gefunden,. dass man nach dem  im Hauptpatent beschriebenen Verfahren     4-          Methoxy-l-benzylamin    herstellen kann, wenn  man an Stelle des dort verwendeten Benzols       4-Methoxybenzol    verwendet.    <I>Beispiel:</I>  In 324 Teilen     Methoxybenzol    löst man  195 Teile     co-Chlormethylphtalimid,    wobei,  wie ersichtlich, das     Methoxybenzol,    das gleich  zeitig Lösungsmittel ist, im Überschuss vor  handen ist. Man gibt 10 Teile Chlorzink,  das als Katalysator dient; hinzu und erwärmt  bis auf 1201' C.

   Beim Aufarbeiten erhält  man     4-Methoxybenzylphtalimid    in fast theore  tischer Ausbeute in Kristallen vom Schmelz  punkt 1040. 50 Teile der Verbindung 'wer  den mit 50 Teilen Alkohol, 100 Teilen  35  %     iger        Natriumhydroxydlösung    und 200  Teilen Wasser kalt 2 Stunden lang gerührt.  Dann wird mit verdünnter Salzsäure ange  säuert und der Alkohol verjagt und etwa  ausgeschiedenes 01 durch Wasserzusatz in  Lösung gebracht. Bei der Aufarbeitung erhält    man das     4-Methoxy-l-benzylaminchlorhydrat,     durch Zusatz von     Natriumhydroxyd    und     Aus-          äthern    die freie Base.

   Das erhaltene, an sich  bekannte Produkt soll als     Zwischenprodukt     bei der Darstellung technisch wichtiger Stoffe,  wie     Riechstoffe    und Heilmittel, Verwendung  finden.



  Process for the preparation of an aralkylamine. It was found,. that 4-methoxy-1-benzylamine can be prepared by the process described in the main patent if 4-methoxybenzene is used instead of the benzene used there. <I> Example: </I> 195 parts of co-chloromethylphthalimide are dissolved in 324 parts of methoxybenzene, whereby, as can be seen, the methoxybenzene, which is also a solvent, is present in excess. 10 parts of zinc chloride, which serves as a catalyst, are added; added and heated to 1201 ° C.

   When working up, 4-methoxybenzylphthalimide is obtained in almost theoretical yield in crystals with a melting point of 1040. 50 parts of the compound 'who is stirred with 50 parts of alcohol, 100 parts of 35% sodium hydroxide solution and 200 parts of water for 2 hours while cold. Then it is acidified with dilute hydrochloric acid and the alcohol is chased away and any excreted oil is brought into solution by adding water. The work-up gives 4-methoxy-1-benzylamine chlorohydrate, and the free base is obtained by adding sodium hydroxide and ether.

   The product obtained, known per se, is intended to be used as an intermediate product in the preparation of technically important substances such as fragrances and medicinal products.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von 4-Methoxy- 1-benzylamin, dadurch gekennzeichnet, dass' man auf Methoxybenzol co-Halogenmethyl- phtalimid einwirken lässt und das so entstan dene Kondensationsprodukt spaltet. UNTERANSPRÜCHE: 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man das Methoxy- benzol und das co-Halogenmethylphtalimid in Cregenwart eines Katalysators aufein ander einwirken lässt. 2. PATENT CLAIM: Process for the preparation of 4-methoxy-1-benzylamine, characterized in that 'methoxybenzene co-halomethyl phthalimide is allowed to act and the condensation product thus formed is cleaved. SUBClaims: 1. A method according to claim, characterized in that the methoxybenzene and the co-halomethylphthalimide are allowed to act on one another in the presence of a catalyst. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man das Methoxy- benzol im Überschuss anwendet, wobei es zugleich die Rolle eines Lösungsmittels spielt. 3. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Spaltung des Kondensationsproduktes durch aufeinander- folgende Behandlung mit Alkalien und Säuren herbeiführt. Process according to patent claim, characterized in that the methoxybenzene is used in excess, it at the same time playing the role of a solvent. 3. The method according to claim, characterized in that the cleavage of the condensation product is brought about by successive treatment with alkalis and acids.
CH122520D 1925-03-30 1926-03-23 Process for the preparation of an aralkylamine. CH122520A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE122520X 1925-03-30
CH120519T 1926-03-23

Publications (1)

Publication Number Publication Date
CH122520A true CH122520A (en) 1927-09-16

Family

ID=25709455

Family Applications (1)

Application Number Title Priority Date Filing Date
CH122520D CH122520A (en) 1925-03-30 1926-03-23 Process for the preparation of an aralkylamine.

Country Status (1)

Country Link
CH (1) CH122520A (en)

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