CH122522A - Process for the preparation of an aralkylamine. - Google Patents
Process for the preparation of an aralkylamine.Info
- Publication number
- CH122522A CH122522A CH122522DA CH122522A CH 122522 A CH122522 A CH 122522A CH 122522D A CH122522D A CH 122522DA CH 122522 A CH122522 A CH 122522A
- Authority
- CH
- Switzerland
- Prior art keywords
- nitro
- preparation
- methylbenzene
- parts
- aralkylamine
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Indole Compounds (AREA)
Description
Verfahren zur Darstellung eines Aralkylamins. Es wurde gefunden, dass man nach dem im Hauptpatent beschriebenen Verfahren 3- Nitro-4-methylbenzylamin herstellen kann, wenn man an Stelle des dort verwendeten Benzols 2 - Nitro -1- methylbenzol verwendet.
Beispiel 411 Teile 2-Nitro-l-methylbeiizol werden mit 195 Teilen oo-Chlormethylphtalimid und 10 Teilen Chlorzink, das als Katalysator dient, versetzt und unter Rühren auf 120 bis 130 o C erhitzt, wobei wie ersichtlich, das 2-Nitro-l-methylbenzol, das gleichzeitig Lösungsmittel ist, im Überschuss vorhanden ist. Das so gewonnene Kondensationsprodukt wird durch Umkristallisieren aus Alkohol ge reinigt. 100 Teile davon werden . mit 80 Teilen 35 o/oiger Natriumhydro$ydlösung, 300 Teilen Wasser und 300 Teilen Alkohol in der gälte gerührt.
Dann wird mit 150 Teilen 25 o/oiger Salzsäure angesäuert, der Alkohol verjagt und zur klaren Lösung aufgearbeitet. Man erhält so das 3-Nitro-4-methylbenzyl- aminchlorhydrat und durch Zusatz von Na triumhydrogyd und Ausäthern das 3-Nitro- 4-methylbenzylamin, das durch Destillation im Vakuum gereinigt werden kann.
Das erhaltene, an sich bekannte Produkt soll als Zwischenprodukt bei der Darstellung technisch wichtiger Stoffe, z. B. Riechstoffe und Heilmittel, Verwendung finden.
Process for the preparation of an aralkylamine. It has been found that 3-nitro-4-methylbenzylamine can be prepared by the process described in the main patent if 2-nitro-1-methylbenzene is used instead of the benzene used there.
EXAMPLE 411 parts of 2-nitro-1-methylbeiizole are mixed with 195 parts of oo-chloromethylphthalimide and 10 parts of zinc chloride, which serves as a catalyst, and the mixture is heated to 120 to 130 o C with stirring, the 2-nitro-l- methylbenzene, which is also a solvent, is present in excess. The condensation product obtained in this way is purified by recrystallization from alcohol. 100 parts of it will be. stirred with 80 parts of 35% sodium hydroxide solution, 300 parts of water and 300 parts of alcohol in the cold.
It is then acidified with 150 parts of 25% hydrochloric acid, the alcohol is driven off and worked up to give a clear solution. This gives the 3-nitro-4-methylbenzyl amine chlorohydrate and, by adding sodium hydroxide and ether, the 3-nitro-4-methylbenzylamine, which can be purified by distillation in vacuo.
The product obtained, known per se, should be used as an intermediate product in the preparation of technically important substances, e.g. B. Fragrances and remedies are used.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE122522X | 1925-03-30 | ||
CH120519T | 1926-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH122522A true CH122522A (en) | 1927-09-16 |
Family
ID=25709457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH122522D CH122522A (en) | 1925-03-30 | 1926-03-23 | Process for the preparation of an aralkylamine. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH122522A (en) |
-
1926
- 1926-03-23 CH CH122522D patent/CH122522A/en unknown
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