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Publication of CH187119ApublicationCriticalpatent/CH187119A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Description
Verfahren zur Herstellung von 2-Methylaminophenol. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung von 2- Methyl- aminophenol, welches dadurch gekennzeich- net ist, dass man o-Propionyl-methyl-amino- phenol mit starken Mineralsäuren verseift.
Gegenüber den bisher bekannten Verfah ren zur Herstellung dieses Stoffes ist das vor liegende Verfahren leichter durchführbar, und ergibt es bessere Ausbeuten.
Das erhaltene 2-Methyl-aminophenol kann insbesondere als Entwzeklersubstanz verwen det werden. <I>Beispiel:</I> o-Propionyl-methyl-aminophenol (F. P.
151 ) wird mit 2'0 % iger Salzsäure zum 2- Methyl-aminophenol verseift.
Process for the preparation of 2-methylaminophenol. The subject of the present patent is a process for the preparation of 2-methylaminophenol, which is characterized in that o-propionyl-methylamino-phenol is saponified with strong mineral acids.
Compared to the previously known procedural Ren for the production of this substance, the present process is easier to carry out, and it gives better yields.
The 2-methyl-aminophenol obtained can in particular be used as a desiccant substance. <I> Example: </I> o-Propionyl-methyl-aminophenol (F. P.
151) is saponified with 2'0% hydrochloric acid to form 2-methyl-aminophenol.
Claims (1)
PATENTANSPRUCH: Verfahren zur Herstellung von 2-Methyl- aminophenol, dadurch gekennzeichnet, dass man o-Propionyl-methyl-aminophenol mit starken Mineralsäuren verseift.
PATENT CLAIM: Process for the production of 2-methyl-aminophenol, characterized in that o-propionyl-methyl-aminophenol is saponified with strong mineral acids.
CH187119D1933-06-131934-06-12
Process for the preparation of 2-methylaminophenol.
CH187119A
(en)