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An efficient synthesis of chalcones (1-7) was achived by condensation of substituted benzaldehyde with substituted acetophenone in ethanolic sodium hydroxide (50%).The chalcones were reacted with urea and thiourea to give the pyrimidinones(8-14) and pyrimidinethiones(15-21) respectively. All the prepared compounds were confirmed by the available physical and spectral methods.doi:10.33899/rjs.2013.67577 fatcat:3pc4zee2sfghbg36djiz2tctcy