Two major classes of compounds of hydroacridinones and hydroxanthenones have been synthesized in a satisfactory yield via three component condensation reaction of amino alcohols, dimedone and aromatic aldehydes. The applied amino alcohols acted as reactant in one reaction to afford 3,6,6-tetramethyl-,2,3,4,5,6,7,8,9,10-decahydroacridine- 1,8-diones and acted as catalyst in the other reaction to afford 1,8-dioxooctahydroxanthenones. The structure of products has been characterized by X-ray crystal structural analyses, 13C-NMR, 1H-NMR, IR and Mass spectra.