Heterocycles. 182. Neighboring group interaction in ortho-substituted heterocycles. 2. 1, 2, 4-Oxadiazolylpyridines and pyrido [2, 3-d] pyrimidine 3-oxides

B Vercek, I Leban, B Stanovnik…

文献索引：Vercek,B. et al. Journal of Organic Chemistry, 1979 , vol. 44, p. 1695 - 1699

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被引用次数: 19

摘要

Various synthetic methods have been elaborated to prepare pyrido [2, 3-d] pyrimidines and their 3-oxides from 0-aminocyanopyridine. Conversion of these 3-oxides into 1, 2, 4- oxadiazolylpyridines, s-triazolo [l, 5-a] pyridines, and pyrazolo [3, 4-b] pyridines as well as other transformations are described.