Alcohols Phenols and EthersmediumMCQ SINGLE⭐ Must-Do

In the commercial Dow's process, chlorobenzene is converted to phenol. What specific reactive intermAlcohols Phenols and Ethers Chemistry Question

Question

In the commercial Dow's process, chlorobenzene is converted to phenol. What specific reactive intermediate is formed during this drastic nucleophilic aromatic substitution?

Answer: C

💡 Solution & Explanation

Dow's process ($NaOH$ at $623 \text{ K}$, $300 \text{ atm}$) forces substitution on the unreactive chlorobenzene via an elimination-addition mechanism. The strong base removes an ortho-proton and chloride is expelled, forming the highly unstable triple-bonded benzyne intermediate.

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