Consider the following sequence of reactions: | vedclass

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(A) The oxidation of alkylbenzenes with alkaline $KMnO_4$ followed by acidification results in the oxidation of the benzylic carbon to a carboxylic ac

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(A) The oxidation of alkylbenzenes with alkaline $KMnO_4$ followed by acidification results in the oxidation of the benzylic carbon to a carboxylic acid group $(-COOH)$, provided that the benzylic carbon has at least one hydrogen atom attached to it.In $tert$-butylbenzene, the benzylic carbon is bonded to three methyl groups and no hydrogen atoms.Therefore, $tert$-butylbenzene does not undergo oxidation with alkaline $KMnO_4$ under these conditions.The starting material remains unchanged, and no reaction occurs. However, if the question implies a reaction where the side chain is cleaved or modified, it is chemically incorrect for this specific substrate. Given the options provided, none represent the correct outcome (no reaction). If we assume the question intended to test the requirement of a benzylic hydrogen, the correct answer is that no reaction occurs.

Consider the following sequence of reactions: $tert$-butylbenzene $\xrightarrow[\text{2. } H_3O^+]{\text{1. } KMnO_4, \Delta, OH^-} P$. The major product $P$ is:

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