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A Simple Synthesis of 1-Substituted 5-Aminopyrazoles and Pyrazolo[1,5-a]-s-triazine Derivative

✍ Scribed by Yamada, Yoichi; Yasuda, Heinosuke; Yoshizawa, Kazue


Book ID
111651797
Publisher
Japan Institute of Heterocyclic Chemistry
Year
1998
Tongue
English
Weight
283 KB
Volume
48
Category
Article
ISSN
0385-5414

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ChemInform Abstract: A Simple Synthesis
✍ Y. YAMADA; H. YASUDA; K. YOSHIZAWA πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons βš– 28 KB πŸ‘ 2 views

A Simple Synthesis of 1-Substituted 5-Aminopyrazoles and Pyrazolo[1,5-a]-s-triazine Derivative. -The title compounds (III) are synthesized directly by cyclization of hydrazine derivatives (II) with (E)-2,3-dicyano-butendioates (I) in the presence of organic salts. The reaction is assumed to proceed