VERFAHREN ZUR HERSTELLUNG VON 4- (AMINOMETHYL)BENZOESÄUREMETHYLESTER
Preparation of 4-(aminomethyl)benzoic acid methylester (I) comprises esterifying 4-aminomethylbenzoic acid with methanol in the presence of hydrochloric acid at -15[deg]C to +10[deg]C and adjusting the pH value to 4-9 by a base; subsequently concentrating and providing an organic solvent; adjusting...
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| Zusammenfassung: | Preparation of 4-(aminomethyl)benzoic acid methylester (I) comprises esterifying 4-aminomethylbenzoic acid with methanol in the presence of hydrochloric acid at -15[deg]C to +10[deg]C and adjusting the pH value to 4-9 by a base; subsequently concentrating and providing an organic solvent; adjusting the pH of the aqueous phase to 9-12 by further addition of a base; and separating the organic phase containing (I). |
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