


$\begin{array}{*{20}{c}}
{\,\,\,\,\,\,CHO} \\
{|\,\,\,} \\
{H - C - OH} \\
{|\,\,\,\,} \\
{\,\,\,\,\,\,\,\,\,C{H_2}OH}
\end{array}$



$C{H_3} - C{H_2} - C{H_2} - CN$ અને $C{H_3} - \mathop {CH}\limits_{\mathop |\limits_{CN} } \,\, - \,\,C{H_3}$