The major products P and Q formed in the following reactions respectively, are:
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When using methoxide (NaOMe) in nucleophilic substitution, the products often include oxygenated carbon atoms and can lead to cyclic or open-chain structures depending on the reaction conditions.
In this question, the reactions given include nucleophilic substitution and formation of products where the alkyl group gets transferred. The key mechanism here involves the use of methoxide (NaOMe) as a nucleophile, attacking electrophilic carbon centers. The substitution leads to the formation of oxygen-containing products. By analyzing the reaction, we find that the resulting products are similar in structure, featuring the same oxygen group bonded to the carbon atoms, forming a similar structure for both products. Therefore, the correct answer is (B).
