{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Reactions of Aromatic Compounds", "refinement": "This problem involves the nucleophilic substitution reactions of aromatic compounds, specifically focusing on the reactivity of halogenated benzene derivatives with strong bases.", "specific_scope": "The reaction of 1-bromo-2-chlorobenzene with sodium amide (NaNH2) in liquid ammonia, leading to the formation of aniline derivatives through nucleophilic substitution.", "goal": "Identify the distinct aniline derivatives that can be synthesized from the given starting material under the specified reaction conditions."}, "summary": "This problem pertains to organic chemistry, specifically the reactions of aromatic compounds. It examines the treatment of 1-bromo-2-chlorobenzene with NaNH2 in liquid ammonia, which can lead to the formation of distinct aniline derivatives through nucleophilic substitution. The goal is to determine how many unique aniline derivatives can be produced from this reaction. The answer is three distinct derivatives."}