{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Diels-Alder Reactions", "refinement": "This problem involves the reaction between a diene (5-chlorocyclopenta-1,3-diene) and a dienophile (maleic anhydride) in a Diels-Alder reaction.", "specific_scope": "The focus is on predicting the major product of the Diels-Alder reaction, considering stereochemistry and regioselectivity.", "goal": "Identify the correct stereochemical configuration of the major product formed from the reaction."}, "summary": "This problem pertains to organic chemistry, specifically the Diels-Alder reaction, where a diene reacts with a dienophile to form a cyclohexene derivative. The task is to determine the major product of the reaction between 5-chlorocyclopenta-1,3-diene and maleic anhydride, taking into account the stereochemistry of the resulting compound. The correct answer is the compound with the configuration (3aR,4R,7S,7aS,8r)-8-chloro-3a,4,7,7a-tetrahydro-4,7-methanoisobenzofuran-1,3-dione."}