Synthesis and Characterization of C(8)-Methyl Flavones

A series of four C(8)-methylated flavones were synthesized from their corresponding C-methyl chalcone intermediates. In the cyclisation of chalcones catalytic amount of Iodine was used in presence of DMSO. The yields of all the compounds obtained were good (62-75%). The compound with methoxy group at (m-) and (p-) positions had obtained with maximum yield (75%) and the compound with methoxy at m-position was obtained with low yield (62%).