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The synthesis of 4-amino-3-(2-pyridyl)pyrazolo[5,1-c][1,2,4]triazine and some of its derivatives

✍ Scribed by Petr Cankař; Jan Slouka

Publisher
Journal of Heterocyclic Chemistry
Year
2003
Tongue
English
Weight
40 KB
Volume
40
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

A mixture of both geometrical isomers of hydrazones 3a‐3e was obtained by the coupling reactions of pyrazole‐3‐diazonium salts 2a‐2d and benzenediazonium chloride 2e with 2‐pyridylacetonitrile 1. Hydrazones 3a‐3d were cyclized to the corresponding 4‐amino‐3‐(2‐pyridyl)pyrazolo[5,1‐c][1,2,4]triazines 4a‐4d.

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