Journal of Heterocyclic Chemistry

Thieno [2, 3??b] pyridines and thieno [3, 2??b] pyridines by the method of gould??jacobs

MA Khan, AE Guarçoni

文献索引：Khan,M.A.; Guarconi,A.E. Journal of Heterocyclic Chemistry, 1977 , vol. 14, p. 807 - 812

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被引用次数: 22

摘要

Abstract Bis (2-, and 3-thienylammonium) hexachlorostannates were condensed with ethoxymethylene derivatives of active methylene compounds in pyridine. The resulting condensation products IVa-IVc and Va-Vc on heating under reflux in Dowtherm or diphenyl ether provided various 4-hydroxythieno [2, 3-b] pyridines (Ia-Ic) and 7-hydroxythieno [3, 2-b] pyridines (IIa-IIc). The compound Ic on further transformations gave yet other derivatives If- ...