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ChemInform Abstract: Synthesis of 2,6-Diamino-3,5-dicyano-4-(3′-chlorophenyl)-4H-thiopyran.

✍ Scribed by V. D. DYACHENKO; V. P. LITVINOV

Publisher
John Wiley and Sons
Year
2010
Weight
29 KB
Volume
29
Category
Article
ISSN
0931-7597

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ChemInform Abstract: Synthesis of 2,6-Di
ChemInform Abstract: 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.
✍ V. D. DYACHENKO; S. G. KRIVOKOLYSKO; V. P. LITVINOV 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB 👁 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