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Synthesis of 3‐(2‐benzyloxy‐6‐hydroxyphenyl)‐1‐methylpyrazoles by the reaction of chromones with methylhydrazine
Author(s) -
Pinto Diana C. G. A.,
Silva Artur M. S.,
Cavaleiro José A. S.
Publication year - 2000
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.5570370637
Subject(s) - methylhydrazine , chemistry , medicinal chemistry , organic chemistry , stereochemistry , phenylhydrazine
The 3‐(2‐benzyloxy‐6‐hydroxyphenyl)‐5‐(methyl, phenyl or styryl)pyrazoles were prepared from the reaction of 2‐(methyl, phenyl or styryl)chromones with methylhydrazine. The structure of these compounds has been determined by several nmr techniques, and the reaction mechanism is discussed.