Heterocyclic rearrangements. Synthesis of 1, 2, 4??oxadiazolo [2, 3??a] pyrimidinium systems and their ring opening into pyrimidine N??oxides

S Buscemi, G Macaluso, V Frenna…

文献索引：Buscemi, Silvestre; Macaluso, Gabriella; Frenna, Vincenzo; Vivona, Nicolo Journal of Heterocyclic Chemistry, 1986 , vol. 23, p. 1175 - 1177

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被引用次数: 9

摘要

Abstract The reaction of 3-amino-5-phenyl-(methyl-)-1, 2, 4-oxadiazole with acetylacetone or benzoylacetone in the presence of perchloric acid has been studied. Synthesis of 1, 2, 4- oxadiazolo [2, 3-α] pyrimidinium perchlorates and their ring opening reaction into aminopyrimidine N-oxides is reported.