A new route to N2??and N3??substituted??2, 3??diaminopyridines. Synthesis of 1??and 3??alkoxycarbonyl??v??triazolo [4, 5??b] pyridines

GP Zecchini, I Torrini…

文献索引：Journal of Heterocyclic Chemistry, , vol. 22, # 2 p. 313 - 318

全文：HTML全文

被引用次数: 8

摘要

... iV-substituted-2,3-diaminopyridines are intermediates in the synthesis of some fused heterocyclic systems as imid ... 13 and 15 can be distinguished by nmr on the basis of the characteristic chemical shifts of ... 3H, s, 0CH3) 1.57 (3H, t, J = 7.5 Hz, СН2-СЯ3), 4.74 (2H, q, J = 7.5 Hz ...