Two chalcone derivatives of acetylnaphthalene and 3-hidroxybenzaldehyde have been synthesized by aldol condensation with base catalyst. Compound of 3-(3-hydroxyphenyl)-1-(naphthalene-1-il)prop-2-en-1-on (KM1) has been synthesized using stirring method with NaOH catalyst and has been obtained was in 75,52 %. Compound of 3-(3-hydroxyphenyl)-1-(naphthalene-2-il)prop-2-en-1-on (KM2) has been synthe…