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Title: Synthesis of novel naphtho[2,1-<i style="">b</i>]furo pyrazolyl, isoxazolyl and pyridyl derivatives as potential antimicrobial agents
Authors: Mahadevan, K M
Basavaraj, K M
Mathias, D A Prathima
Vaidya, V P
Issue Date: Apr-2005
Publisher: CSIR
Series/Report no.: <b>Int</b>.<b>Cl</b>.<b><sup>7</sup> C 07 D 231/00, 261/00, 213/00 // A 61 P 31/04, 31/10</b>
Abstract: The treatment of chalcones <b>2a-f</b> with substituted hydrazines in ethanol results in the formation of 3-(3-aminonaphtho[2,1-<i style="">b</i>]fur-2-yl)-5-arylpyrazolines <b style="">3a-l</b>.The reaction of these chalcones <b>2a-f </b><b style=""> </b>with hydroxylamine hydrochloride in presence of catalytic amount of hydrochloric acid affords 3-(3-aminonaphtho[2,1-<i style="">b</i>]fur-2-yl)-5-arylisoxazolines <b>4a-f</b>. The synthesis of another biheterocycle, 2-amino-3-cyano-4-aryl-6-(3-aminonaphtho[2,1-<i style="">b</i>]fur-2yl)pyridines <b>5a-f</b> is accomplished by reacting chalcones <b>2a-f </b> with malanonitrile in presence of ammonium acetate. All the newly synthesized compounds are characterized by elemental analysis and spectral studies, and evaluated for antimicrobial activity.
Description: 789-793
ISSN: 0975-0983(Online); 0376-4699(Print)
Appears in Collections:IJC-B Vol.44B(04) [April 2005]

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