69.
a) Treat toluene with 3 moles of chlorine in the presence of a catalyst. Act on the chlorinated product with 3 moles of ethyl chloride in the presence of metallic sodium (Wurtz reaction). Indicate the names of all organic substances obtained in the process of synthesis.
b) Treat α-naphthol with dilute alkali and then with butyric acid chloride.

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