{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Rearrangement Reactions", "refinement": "This problem focuses on identifying specific types of rearrangement reactions, particularly those classified as [2,3]-sigmatropic rearrangements.", "specific_scope": "The task is to evaluate different reactions and determine which one fits the criteria of a [2,3]-sigmatropic rearrangement.", "goal": "Identify the reaction that involves a [2,3]-sigmatropic rearrangement from the given options."}, "summary": "This question pertains to organic chemistry, specifically the classification of rearrangement reactions. The goal is to identify which of the provided reactions is a [2,3]-sigmatropic rearrangement. Among the options, the reaction of allylic sulfoxide to allylic alcohol is the correct answer, as it involves the migration of a group across a double bond, characteristic of [2,3]-sigmatropic rearrangements."}