Treatment of benzene with $\mathrm{CO} / \mathrm{HCl}$ in the presence of anhydrous $\mathrm{AlCl}_3

Question

Treatment of benzene with $\mathrm{CO} / \mathrm{HCl}$ in the presence of anhydrous $\mathrm{AlCl}_3 / \mathrm{CuCl}$ followed by reaction with $\mathrm{Ac}_2 \mathrm{O} / \mathrm{NaOAc}$ gives compound $X$ as the major product. Compound $X$ upon reaction with $\mathrm{Br}_2 / \mathrm{Na}_2 \mathrm{CO}_3$, followed by heating at 473 K with moist KOH furnishes $Y$ as the major product. Reaction of $X$ with $\mathrm{H}_2 / \mathrm{Pd}-\mathrm{C}$, followed by $\mathrm{H}_3 \mathrm{PO}_4$ treatment gives $Z$ as the major product.

Professor PC Thomas Classes · Answer

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