SEARCH

SEARCH BY CITATION

Keywords:

  • cyclization;
  • oxidation;
  • chalcones;
  • silica gel;
  • 3-methyl-flavanones

Abstract

A series of 2-phenyl-2,3-dihydrochromon-4-one derivatives (flavanone derivatives) were synthesized by silica gel assisted isomerization of several α-methyl-2′-hydroxy chalcones in 74%–88% yield. These flavanones were further oxidized to 3-methyl flavones by using iodine in dimethyl sulphoxide at 60°C in presence of acid. The newly synthesized derivatives were evaluated for in vitro study against Staphylococcus aureus, Micrococcus luteus and Staphylococcus epidermis.