ISSN:
1434-4475
Schlagwort(e):
Trimethylammonium acetic acid betaine
;
Diethyl tartronate
;
1-Carbethoxy-2-methyl-(2,4-dinitrophenyl) osazone
;
1-Carbethoxy-(2,4-dinitrophenyl) osazone
;
Glycolic acid nitrile
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
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 α-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.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00811130
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