α,β-Unsaturated Nitriles in Heterocyclic Synthesis. Novel Synthesis of Pyridines and Thieno[2,3-<i>b</i>]pyridine Derivatives
作者:Galal E. H. Elgemeie、Hassan A. Elfahham、Hesham A. Nabey
DOI:10.1246/bcsj.61.4431
日期:1988.12
reacts with ethyl acetoacetate and acetylacetone to give the corresponding 3-cyano-2(1H)-pyridinethione derivatives, which can be alkylated at sulfur atom and cyclized into the corresponding thieno[2,3-b]pyridine derivatives.
芳基亚甲基
氰硫代乙酰胺与
乙酰乙酸乙酯和
乙酰丙酮反应生成相应的 3-
氰基-2(1H)-
吡啶硫酮衍
生物,该衍
生物可在
硫原子上烷基化并环化为相应的
噻吩并[2,3-b]
吡啶衍生物。