In the commercial Dow's process, chlorobenzene is converted to phenol. What specific reactive interm — Alcohols 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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