Reactions of alkyl acetone-1,3-dicarboxylates with cyanamide and benzoylcyanamide
作者:M. A. Prezent、V. A. Dorokhov
DOI:10.1007/s11172-005-0407-0
日期:2005.5
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-carboxylates. The same compounds were obtained by intramolecular cyclization of adducts of acetone-1,3-dicarboxylates with benzoylcyanamide under the action of sodium alkoxides.
氰胺与二烷基丙酮-1,3-二羧酸酯在醋酸镍存在下反应,生成了烷基2-amino-4-hydroxy-6-oxo-1,6-dihydropyridine-3-羧酸酯。通过在钠烷氧基盐的作用下,乙酮-1,3-二羧酸酯与苯甲酰氰胺的加成物的分子内环化,同样可以获得这些化合物。