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ChemInform Abstract: Synthesis and Reactions of 6-Amino-3,5-dicyano-4-ethylpyridine-2(1H)- thione.

โœ Scribed by V. D. DYACHENKO; S. G. KRIVOKOLYSKO; V. P. LITVINOV

Publisher
John Wiley and Sons
Year
2010
Weight
30 KB
Volume
28
Category
Article
ISSN
0931-7597

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โœ V. D. DYACHENKO; S. G. KRIVOKOLYSKO; V. P. LITVINOV ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 31 KB ๐Ÿ‘ 1 views

Synthesis of 2,6-Diamino-3,5-dicyano-4-ethyl-4H-thiopyran and Its Recyclization into 6-Amino-3,5-dicyano-4-ethylpyridine-2(1H)-thione. -Three component condensation of propionaldehyde with malononitrile and cyanothioacetamide provides the title diaminothiopyran (IV) which recyclizes at reflux into