\(\begin{matrix} C{{H}_{3}}-C=C{{H}_{2}} \\ |\, \\ \,\,\,OH \\ \end{matrix}\xrightarrow{\operatorname{Re}arrangement}\underset{Acetone}{\mathop{\begin{matrix} C{{H}_{3}}-C-C{{H}_{3}} \\ || \\ O \\ \end{matrix}}}\,\)