Year 2005, Month 5 (Section Brief Communications, Page 1343)
Reactions of alkyl acetone-1,3-dicarboxylates with cyanamide and benzoylcyanamide*
M. A. Prezent and V. A. Dorokhov
The reactions of cyanamide with dialkyl acetone-1,3-dicarboxylates in the presence of
nickel acetylacetonate afforded alkyl 2-amino-4-hydroxy-6-oxo-1,6-dihydropyridine-3-carb-oxylates. The same compounds were obtained by intramolecular cyclization of adducts of acetone-1,3-dicarboxylates with benzoylcyanamide under the action of sodium alkoxides.
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