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Reactions of hydrazonoyl halides 43 : Synthesis of some new 2,3-dihydro-1,3,4-thiadiazoles, pyrazoles, pyrazolo[3,4-d]-pyridazines, thieno[2,3-b]pyridines, pyrimidino[4′,5′:4,5]thieno[2,3-b]-pyridines and pyrrolo[3,4-d]pyrazoles

✍ Scribed by Abdou O. Abdelhamid; Mohamed A. M. Alkhodshi

Publisher
Journal of Heterocyclic Chemistry
Year
2005
Tongue
English
Weight
104 KB
Volume
42
Category
Article
ISSN
0022-152X

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ChemInform Abstract: Reactions with Hydr
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Synthesis of some new bipyridines, thien
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## Abstract Cyclocondensation of cyanoacetamide and cyanothioacetamide with sodium salt of 3‐hydroxy‐1‐(pyridin‐3‐yl)prop‐2‐en‐1‐one gave 6‐oxo‐[2,3′]bipyridine **5a** and 6‐thioxo‐[2,3′]bipyridine **5b** derivatives, respectively. Compound **5b** upon treatment with different methylenes **8** gave