Question
How is phenol prepared from cumene?
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Answer
Preparation of phenol from cumene:
$a.$ When an alkaline solution of cumene $($isopropyl benzene or $2-$Phenylpropane$)$ in sodium carbonate is oxidised by passing air or oxygen in the presence of cobalt naphthenate as a catalyst at $423 K,$ cumene hydroperoxide is obtained.
$b.$ Auto oxidation: Cumene hydroperoxide on heating with dilute $H_2SO_4$ decomposes forming phenol and acetone. In this method, acetone is obtained as an important byproduct which is separated by distillation.
$a.$ When an alkaline solution of cumene $($isopropyl benzene or $2-$Phenylpropane$)$ in sodium carbonate is oxidised by passing air or oxygen in the presence of cobalt naphthenate as a catalyst at $423 K,$ cumene hydroperoxide is obtained.
$b.$ Auto oxidation: Cumene hydroperoxide on heating with dilute $H_2SO_4$ decomposes forming phenol and acetone. In this method, acetone is obtained as an important byproduct which is separated by distillation.
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