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Organic chemistry 2 Lab:Preparation of an a,B unsaturated ketone via michael and aldol condensation

1) why is it possible to separate product from sodium hydroxide using acetone?

2) a white solid remains in centrifuge tube after acetone extraction-it fizzes when hydrochloric acid is added suggesting sodium carbonate was formed-

How did it form? balanced equation for formation?

need balanced equation for rxn of sodium carbonate with hydrochloric acid

3) draw 3 main mechanism steps in preparation of 6-ethoxycarbonyl-3,5-diphenyl-2-cyclohexanone.using NAOH as base and ethanol as proton source

4) how could you synthesize trans- chalcone?

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