{"knowledge_schema": {"broad_category": "Organic Chemistry \u2192 Reaction Mechanisms \u2192 Product Prediction", "refinement": "This problem involves predicting the major products of two organic reactions based on steric hindrance and product stability.", "specific_scope": "The focus is on the reactions of a ketone with an acrylate and a nitro compound with a nitrile, considering the influence of sterics and stability on the final products.", "goal": "Identify the correct major products for the given reactions based on the provided candidates."}, "summary": "In this problem, we are tasked with predicting the major products of two organic reactions while considering steric hindrance and product stability. The first reaction involves a ketone reacting with an acrylate in the presence of a strong base, leading to a product that reflects the steric environment of the starting material. The second reaction involves a nitro compound reacting with a nitrile, where the stability of the resulting product is key. The goal is to select the correct major products from the provided candidates based on these considerations."}