C_6H_6 + CH_3-CH=CH_2 xrightarrow{H_3PO_4} A | vedclass

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(B) The reaction sequence is the industrial preparation of phenol from cumene (cumene process).$1$. Benzene reacts with propene in the presence of $H_

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(B) The reaction sequence is the industrial preparation of phenol from cumene (cumene process).$1$. Benzene reacts with propene in the presence of $H_3PO_4$ to form cumene (isopropylbenzene) as $A$.$2$. Cumene $(A)$ is oxidized by $O_2$ under heat to form cumene hydroperoxide $(B)$.$3$. Cumene hydroperoxide $(B)$ on treatment with dilute $H_2SO_4$ undergoes rearrangement to yield phenol $(C)$ and acetone $(D)$.

$C_6H_6 + CH_3-CH=CH_2$ $\xrightarrow{H_3PO_4} A$ $\xrightarrow{O_2, \text{heat}} B$ $\xrightarrow{\text{dil. } H_2SO_4} C + D$. $A, C$ and $D$ are:

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