In the classical Dow process for the industrial synthesis of phenol from chlorobenzene, extreme pressure is required to overcome the partial double bond character of the bond. According to the textboo

Question

In the classical Dow process for the industrial synthesis of phenol from chlorobenzene, extreme pressure is required to overcome the partial double bond character of the $C-Cl$ bond. According to the textbook reference, what is the exact pressure applied in atmospheres ($	ext{atm}$)?

Prashant Kotian · Accepted Answer

Correct answer: 300. To force the extremely difficult nucleophilic aromatic substitution () of the firmly held chlorine atom in chlorobenzene, the Dow process utilizes molten/aqueous at a high temperature of and an immense pressure of exactly .

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