{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Reaction Mechanisms", "refinement": "This problem involves electrophilic addition reactions and subsequent nucleophilic substitution reactions in organic compounds.", "specific_scope": "The focus is on the reaction of 2-methyl-1,3-butadiene with bromine in the presence of water, followed by treatment with sodium methoxide.", "goal": "Identify the final product formed after the complete reaction sequence involving bromination and methoxylation."}, "summary": "This problem explores the reaction sequence of 2-methyl-1,3-butadiene when treated with bromine and water, leading to the formation of a bromohydrin. The subsequent treatment with sodium methoxide results in a nucleophilic substitution reaction. The goal is to determine the final product of this sequence, which is identified as 2-bromo-3-methoxy-2-methylbutane. Understanding the mechanisms of electrophilic addition and nucleophilic substitution is key to solving this problem."}