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|Title:||Synthesis and characterization of thiazole anchored fluorinated 2-heterylchromones and pyrazoles|
|Authors:||Akolkar, H N|
Randhavane, P V
Karale, B K
|Abstract:||Esterification of 2-(4-fluorophenyl)-4-methylthiazole-5-carboxylic acid 4 with 2-hydroxyacetophenones 5 yields compounds 6 which have been converted to β-diketones 7 by Baker-Venkataraman transformation. A series of 2-substituted chromones 8 have been obtained by acid catalysed intramolecular cyclization of β-diketones. Substituted pyrazoles 9 have been obtained from β-diketones 7. Formation of all the synthesized compounds have been confirmed by the spectroscopic techniques.|
|Appears in Collections:||IJC-B Vol.56B(04) [April 2017]|
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