Chalkones - the condensation of aromatic aldehydes with resacetophenone

Previous statements that resacetophenone does not react with benzaldehyde and protocatechualdehyde in presence of alkali to yield the corresponding chalkones, 2 : 4- dihydroxyphenyl styryl ketone and butein respectively, are incorrect. The use of dilute alkali solution provides a convenient method for transforming these chalkones into the corresponding hydroxyflavnones