\(CHC{{l}_{3}}\xrightarrow{HN{{O}_{3}}}CC{{l}_{3}}N{{O}_{2}}\)
or \(C{{H}_{3}}N{{O}_{2}}\xrightarrow[NaOH]{C{{l}_{2}}}\underset{chloropicrin}{\mathop{CC{{l}_{3}}N{{O}_{2}}}}\,\)




$ 3 \mathrm{ROH}+\mathrm{PCl}_3 \rightarrow 3 \mathrm{RCl}+\mathrm{A} $
$ \mathrm{ROH}+\mathrm{PCl}_5 \rightarrow \mathrm{RCl}+\mathrm{HCl}+\mathrm{B}$
$\begin{array}{*{20}{c}}
{C{H_3}}\\
{|\,\,\,\,\,}\\
{{C_6}{H_5}C{H_2} - C - C{H_2} - C{H_3}}\\
{|\,\,\,\,\,}\\
{Br\,\,\,}
\end{array}$ $\xrightarrow[{{C_2}{H_5}OH}]{{{C_2}{H_5}ONa}}$