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Pyridazine Derivatives and Related Compounds, Part 20: 1 Synthesis of Different Heterocycles from 5-Aminothieno[2,3- c ]pyridazine-6-carbohydrazide

โœ Scribed by Deeb, Ali; El-Abbasy, Mohamed


Book ID
121226421
Publisher
Taylor and Francis Group
Year
2006
Tongue
English
Weight
361 KB
Volume
181
Category
Article
ISSN
1042-6507

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Pyridazine derivatives and related compo
โœ Ali Deeb; Mekky Hassaneen; Mahmoud Kotb ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 99 KB

The reaction of 3-hydrazino-4,5,6-triphenylpyridazine 1 with phenylisothiocyanate in ethanol gave thiocarbamoylhydrazine 2 while in butanol gave triazolo [4,3-b]pyridazinethione 3. Reaction of 1 with ethyl chloroformate gave ethoxycarbamoylhydrazinopyridazine 5 which upon heating it furnished triazo