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Reactions with heterocyclic amidines VIII. Synthesis of some new imidazo[1,2‐ b ]pyrazole derivatives
Author(s) -
Elnagdi Mohamed Hilmy,
Hafez Ebtisam Abdel Aziz,
ElFahham Hassan Attia,
Kandeel Ezzat Mohamed
Publication year - 1980
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.5570170115
Subject(s) - malononitrile , chemistry , pyrazole , amidine , derivative (finance) , medicinal chemistry , organic chemistry , catalysis , financial economics , economics
The reaction of benzoylacetonitrile (III) , its phenylazo derivative (X) , malononitrile and malononitrile derivatives with ethyl hydrazinoacetate was investigated. All the investigated compounds with the exception of phenylazobenzoylacetonitrile and phenylazomalononitrile afforded 1‐ethoxycarbonylmethyl‐3‐aminopyrazole derivatives when treated with I. Compounds Xa and XVIII afforded imidazoypyrazole derivatives under the same experimental conditions.