\[\ce{\underset{Ethanoic acid}{CH3COOH} ->[SOCl2] \underset{Ethanoyl chloride}{CH3COCl} ->[NH3 (excess)] \underset{Ethanamide}{CH3CONH2} ->[Br2/KOH][Hofmann bromamide reaction] \underset{Methylamine}{CH3NH2}}\]