\(C{H_3} - \mathop {\mathop {C{\mkern 1mu} {\mkern 1mu} }\limits_{|{\kern 1pt} {\kern 1pt} {\kern 1pt} } = }\limits_{OH{\kern 1pt} {\kern 1pt} \,\,\,\,} {\mkern 1mu} {\mkern 1mu} C{H_2}\xrightarrow{{{\text{Rearrangem ent}}}}\mathop {C{H_3} - \mathop {\mathop {{\text{ }}C}\limits_{||} }\limits_O - C{H_3}}\limits_{{\text{Acetone}}} \)
$\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,OH} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\
{C{H_3}{\text{ }} - {\text{ }}CH{\text{ }} = {\text{ }}CH{\text{ }} - {\text{ }}C{H_3}\xrightarrow{{{H_3}{O^ + }}}\,C{H_3} - C{H_2} - CH - C{H_3}}
\end{array}$
$2,7-$ડાયમિથાઈલ$-2,6-$ઓકટાડાઈન $\stackrel{ H ^{+}}{\longrightarrow}$ $'A'$(મુખ્ય નીપજ)




$(1)\,CH_3C \equiv C - CH_3$ $(2)\,CH_3CH_2 -CH_2 -CH_3$
$(3)\, CH_3CH_2C \equiv CH$ $(4)\, CH_3CH = CH_2$