{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Reaction Mechanisms", "refinement": "This problem specifically deals with the Michael addition reaction, which involves the nucleophilic addition of a compound to an \u03b1,\u03b2-unsaturated carbonyl compound.", "specific_scope": "The focus is on identifying the reactants (ethyl acetoacetate and (E)-3-phenylprop-2-enal) and determining the major product formed after the reaction in the presence of a base (NaOMe) and solvent (MeOH).", "goal": "To correctly identify the structure of the major product formed from the Michael addition reaction of the given reactants."}, "summary": "In this problem, we are analyzing a Michael addition reaction involving ethyl acetoacetate and (E)-3-phenylprop-2-enal, catalyzed by sodium methoxide in methanol. The goal is to determine the major product formed from this reaction. The correct answer is that the major product is ethyl 3-(3-phenylpropyl)-3-oxobutanoate, which results from the nucleophilic addition of the enolate from ethyl acetoacetate to the \u03b1,\u03b2-unsaturated carbonyl compound."}