Which one of the following reactions will not yield propionic acid?

$\displaystyle \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_3+\mathrm{KMnO}_4 \text { (Heat) }, \mathrm{OH}^{-} / \mathrm{H}_3 \mathrm{O}^{+}$

$\displaystyle \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CCl}_3+\mathrm{OH}^{-} / \mathrm{H}_3 \mathrm{O}^{+}$

$\displaystyle \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COCH}_3+\mathrm{OI}^{-} / \mathrm{H}_3 \mathrm{O}^{+}$

$\displaystyle \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Br}+\mathrm{Mg}, \mathrm{CO}_2 \text { dry ether } / \mathrm{H}_3 \mathrm{O}^{+}$