Über Reaktionen mit Betain, 24. Mitt.: Über Umsetzungen von Trimethylammoniumessigsäurebetain mit reaktiven Halogenverbindungen |
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| Authors: | Erich Ziegler Helga Wittmann Heinz Sterk |
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| Institution: | (1) Institut für Organische Chemie, Karl-Franzens-Universität Graz, A-8010 Graz, Österreich |
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| Abstract: | Summary Diethyl bromomalonate and bromoacetonitrile, respectively, react with trimethylammonium acetic acid betaine in ethanol to give diethyl tartronate and glycolic acid nitrile, respectively. By analogy, ethyl  -chloroacetonate and ethyl bromopyruvate yield the respective hydroxy derivatives which were identified by their osazones2 and3. Under the same experimental conditions, mesoxalic acid and its dimethyl ester, respectively, are formed from dibromo malonic acid and its dimethyl ester and were characterized by their known hydrazones8 and9.Herrn o. Prof. Mag. pharm. Dr. H. Junek, Karl-Franzens-Universität Graz, zur Vollendung des 60. Lebensjahres mit besten Wünschen gewidmet |
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| Keywords: | Trimethylammonium acetic acid betaine Diethyl tartronate 1-Carbethoxy-2-methyl-(2 4-dinitrophenyl) osazone 1-Carbethoxy-(2 4-dinitrophenyl) osazone Glycolic acid nitrile |
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