$\underset{\begin{smallmatrix}
2\,-\,oc\tan ol \\
(optically\,\,active)
\end{smallmatrix}}{\mathop{\begin{matrix}
C{{H}_{3}}-\overset{*}{\mathop{C}}\,H-{{(C{{H}_{2}})}_{5}}-C{{H}_{3}} \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
:\underset{\scriptscriptstyle\centerdot\centerdot}{O}H\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
\end{matrix}}}\,$$\xrightarrow{{dil\,.\,acid}}\,C{H_3} - CH = CH - {(C{H_2})_4} - C{H_3}$
$(I)$ $C{H_2} = CH - C{H_3} + {H_2}O\xrightarrow{{{H^ + }}}$
$(II)$ $C{H_3}CHO\xrightarrow[{(ii)\,{H_2}O}]{{(i)\,\,C{H_3}MgI}}$
$(III)$ $CH_2O\xrightarrow[{(ii)\,{H_2}O}]{{(i)\,\,C{_2}H_5MgI}}$
$(IV)$ $C{H_2} = CH - C{H_3}\xrightarrow{{nutral \,KMn{O_4}}}$
$C{H_2} = C{H_2}\, \xrightarrow{{HOCl}} \,A\xrightarrow{{_R}}\begin{array}{*{20}{c}}
{C{H_2}OH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_2}OH}
\end{array}$
વિધાન $R:$ ઈથેનોલ એ ફિનોલ કરતાં પ્રબળ એસીડ છે.
$\begin{array}{*{20}{c}}
{OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - CH - C{H_2} - C{H_2} - OH}
\end{array}\,$ ${\xrightarrow[{Pyridine{\kern 1pt} cold}]{{Cr{O_3}}}}$ નીપજ