{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Tautomerism", "refinement": "Tautomerism is a specific type of isomerism where compounds can readily interconvert between two or more structural forms, typically involving the relocation of a hydrogen atom and a switch of a double bond.", "specific_scope": "The focus is on identifying which of the given compounds can undergo tautomeric shifts, particularly looking for compounds with keto-enol forms or similar structural features that allow for such interconversion.", "goal": "Determine which compound among the candidates can exhibit tautomerism based on its structural characteristics."}, "summary": "Tautomerism is a form of isomerism where compounds can interconvert between different structural forms, often involving the movement of a hydrogen atom and a change in bonding. In this context, the question asks which of the provided compounds can exhibit this behavior. Among the candidates, acetylacetone is the only compound that can undergo tautomerism, specifically between its keto and enol forms, while the others do not have the structural features necessary for such interconversion."}