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α,β-Unsaturated Nitriles in Heterocyclic Synthesis. Novel Synthesis of Pyridines and Thieno[2,3- b ]pyridine Derivatives

1988; Oxford University Press; Volume: 61; Issue: 12 Linguagem: Inglês

10.1246/bcsj.61.4431

1348-0634

Galal H. Elgemeie, H. A. ELFAHHAM, Hesham Abd el Nabey,

Synthesis and Characterization of Heterocyclic Compounds

Abstract Arylmethylenecyanothioacetamide 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.