The major product of the following reaction i | vedclass

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(C) The reaction proceeds in two steps: $1$. Treatment with $t-BuOK$ (a strong base) causes an intramolecular elimination reaction (specifically an $E

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(C) The reaction proceeds in two steps: $1$. Treatment with $t-BuOK$ (a strong base) causes an intramolecular elimination reaction (specifically an $E2$ mechanism) to form an $\alpha,\beta$-unsaturated ketone. The base abstracts an $\alpha$-hydrogen,and the resulting enolate displaces the chloride ion to form a vinyl ketone derivative. $2$. Treatment with concentrated $H_2SO_4$ and heat induces a Friedel-Crafts type cyclization. The acid protonates the carbonyl oxygen,increasing the electrophilicity of the $\beta$-carbon,which then undergoes an intramolecular electrophilic aromatic substitution (cyclization) onto the benzene ring. Given the structure,the cyclization occurs at the ortho position relative to the alkyl chain,leading to the formation of a six-membered ring fused to the benzene ring,resulting in $7$-isopropyl-$3,4$-dihydronaphthalen-$2(1H)$-one (or a related isomer depending on the specific substitution pattern). Based on the provided options,the product is represented by option $C$.

The major product of the following reaction is:

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