Monatshefte fur Chemie p. 907 - 912 (1989)
Update date:2022-08-29
Topics:
Ziegler, Erich
Wittmann, Helga
Sterk, Heinz
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 α-chloroacetonate and ethyl bromopyruvate yield the respective hydroxy derivatives which were identified by their osazones 2 and 3.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 hydrazones 8 and 9. - Keywords: Trimethylammonium acetic acid betaine; Diethyl tartronate; 1-Carbethoxy-2-methyl-(2,4-dinitrophenyl) osazone; 1-Carbetoxy-(2,4-dinitrophenyl) osazone; Glycolic acid nitrile.
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