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Microwave‐promoted oxidation of 1,3,5‐trisubstituted 4,5‐dihydro‐1 H ‐pyrazoles by in‐situ generation of NO + and NO 2 + respectively from sodium nitrite and sodium nitrate in acetic acid
Author(s) -
Azarifar Davood,
Maleki Behrooz,
Sahraei Mahta
Publication year - 2008
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.5570450241
Subject(s) - chemistry , sodium nitrite , aromatization , nitrite , in situ , acetic acid , sodium nitrate , sodium , microwave , nuclear chemistry , nitrate , microwave irradiation , medicinal chemistry , inorganic chemistry , organic chemistry , catalysis , physics , quantum mechanics
Microwave‐assisted aromatization of 1,3,5‐trisubstituted 4,5‐dihydro‐1 H ‐pyrazoles by in‐situ generation of NO + and NO 2 + respectively from sodium nitrite and sodium nitrate in acetic acid has been carried out efficiently under mild reaction conditions in good to excellent yields.