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Transformations of phenylhydrazones of 5‐acyl‐1,2,4‐triazines to pyrazolo[4,3‐ e ][1,2,4]triazines or 4‐cyanopyrazole
Author(s) -
Mojzych Mariusz,
Rykowski Andrzej
Publication year - 2007
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570440504
Subject(s) - chemistry , simple (philosophy) , organic chemistry , medicinal chemistry , computational chemistry , epistemology , philosophy
A simple and high yielding preparation of pyrazolo[4,3‐ e ][1,2,4]triazines and 4‐cyano‐3‐methyl‐1‐phenylpyrazole derivatives from corresponding phenylhydrazones of 5‐acyl‐1,2,4‐triazines by melt under acidic medium and by thermal heating, respectively.