2-CYANOETHANETHIOAMIDE IN HETEROCYCLIC SYNTHESIS: NOVEL SYNTHESIS OF THIENO[2,3-B]PYRIDINE, PYRAZOLO[3,4-B]PYRIDINE AND PYRIDOPYRAZOLO- 1,2,4-TRIAZINE DERIVATIVES

Mohamed A.A. Elneairyi Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt

Azza M. Abdel-fattah Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt

Abstract

Several new synthesis of thieno[2.3-blpyridine, pyrazolo[3,4-b[pyridine and pyridopyrazolo-1,2,4-triazine derivatives via the reactions of pyridinethiones with halogenated compounds, hydrazine hydrate and active methylene compounds.

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2-CYANOETHANETHIOAMIDE IN HETEROCYCLIC SYNTHESIS: NOVEL SYNTHESIS OF THIENO[2,3-B]PYRIDINE, PYRAZOLO[3,4-B]PYRIDINE AND PYRIDOPYRAZOLO- 1,2,4-TRIAZINE DERIVATIVES

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2-CYANOETHANETHIOAMIDE IN HETEROCYCLIC SYNTHESIS: NOVEL SYNTHESIS OF THIENO[2,3-B]PYRIDINE, PYRAZOLO[3,4-B]PYRIDINE AND PYRIDOPYRAZOLO- 1,2,4-TRIAZINE DERIVATIVES

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