SYNTHESIS AND SPECTRAL ANALYSIS OF SOME PYRAZOLE DERIVATIVESJournal: SCHOLARLY RESEARCH JOURNAL FOR INTERDISCIPLINARY STUDIES (Vol.3, No. 23)
Publication Date: 2016-05-04
Authors : A.H. Dhamane;
Page : 1746-1751
Keywords : Keywords: chalcones; chromones; pyrazoles; o-hydroxyacetophenones; fluorinated aromatic aldehyde.;
Synthetic pyrazole derivatives (5a-f) have been synthesized using conventional method producing good yield in ethanol with hydrazine in presence of acid. The oxidative cyclization reaction of chalcones (3a-f), with iodine crystals in presence of DMSO gives good yield of chromone (4a-f) derivatives these synthesized compounds were confirmed by IR, 1H NMR and mass spectral data.
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