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Cleavage of 5-aroyl-1-methyl-4-nitropyrazoles by hydrazine hydrate

โœ Scribed by T. V. Manaeva; V. P. Perevalov

Publisher
Springer US
Year
1990
Tongue
English
Weight
42 KB
Volume
26
Category
Article
ISSN
0009-3122

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ChemInform Abstract: Synthesis of 3- and
ChemInform Abstract: Synthesis of 3- and 5-Hydrazino-1-methyl-4-nitropyrazoles.
โœ L. I. BARYSHNENKOVA; V. P. PEREVALOV; V. A. POLYAKOV ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 27 KB ๐Ÿ‘ 1 views

Synthesis of 3-and 5-Hydrazino-1-methyl-4-nitropyrazoles. -The title 3(5)-hydrazinopyrazoles (II) and (IV), resp., are obtained by nucleophilic substitution of the 5-bromo group in compound (I) or the 3-nitro group in compound (III) with hydrazine.