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Phenols can be prepared by

$\begin{array}{1 1}(a)\;\text{Schotten-Baumann reaction}&(b)\;\text{Kolbe reaction}\\(c)\;\text{Reimer-Tiemann reaction}&(d)\;\text{Dow process}\end{array}$

1 Answer

Solution :
From haloarenes: Dows process.
When chlorobenzene is heated with caustic soda at $300^{\circ}\;C$ and $200\; atm$ pressure, sodium phenoxide is formed which on acidification produces phenol.
answered Feb 26, 2014 by sreemathi.v
edited Nov 20 by meena.p