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The main product obtained from phenol with $\mathrm{PCl}_5$ is
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The correct answer is:
triphenyl phosphate
The reaction of phenol with $\mathrm{PCl}_5$ is as follows
$\begin{aligned}
& 3 \mathrm{C}_6 \mathrm{H}_5 \mathrm{OH}+\mathrm{POCl}_3 \longrightarrow \underset{\text { Triphenyl phosphate }}{\left(\mathrm{C}_6 \mathrm{H}_5\right)_3 \mathrm{PO}_4+3 \mathrm{HCl}} \\
&
\end{aligned}$
The yield of chlorobenzene in the above reaction is very poor. Thus, the main product of the reaction is triphenyl phosphate $\left(\mathrm{C}_6 \mathrm{H}_5\right)_3 \mathrm{PO}_4$.
$\begin{aligned}
& 3 \mathrm{C}_6 \mathrm{H}_5 \mathrm{OH}+\mathrm{POCl}_3 \longrightarrow \underset{\text { Triphenyl phosphate }}{\left(\mathrm{C}_6 \mathrm{H}_5\right)_3 \mathrm{PO}_4+3 \mathrm{HCl}} \\
&
\end{aligned}$
The yield of chlorobenzene in the above reaction is very poor. Thus, the main product of the reaction is triphenyl phosphate $\left(\mathrm{C}_6 \mathrm{H}_5\right)_3 \mathrm{PO}_4$.
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