A series of new 4-(chromon-3-yl)-3-ethoxylcarbonyl-1,4,5,6,7,8-hexahydro-5-oxo-2,7,7- trimethylquinoline derivatives were synthesized from substituted 3-formylchromones,5,5-dimethyl-1,3- cyclohexadione,ammonium acetate,and ethyl acetoacetate in a one-pot reaction.

Three novel Schiff bases were synthesized using the reaction of 4-aminoatipyrine with 3-formylchromone,cinnamaldehyde and anisaldehyde.

Study of Inclusion Compounds of β-Cyclodextrin with 3-Formylchromones;

5-(chromon-3-ylmethylidene)meldrum's acid are synthesized by Knoevenagel condensation of substituted-3-formylchromone and Meldrum's acid under the solid state condition of heating without organic solvent and catalyst,the yield was 70%～87%,the products were indentified by 1H NMR and IR.

A series of 3 (3′ aryl 5′ thione 1′,2′,4′ triazole 4′ yl) aminocarbonyl chromones have been prepared by the oxidation of 3 formylchromone by the Jones' reagent, followed by reacting with 3 aryl 4 amino 5 thione 1,2,4 triazole in the presence of POCl 3.

Solid Phase Condensation between Substituted3-formylchromone and Barbituric Acid or Thiobarbituric Acid;