+2 + +

Acetic anhydride (ethanoic anhydride) reacts with methylamine to give N-methylacetamide and methylammonium acetate.

This acylation reaction involves nucleophilic addition to the carbonyl function followed by elimination. The overall effect is nucleophilic substitution.

Reaction defined as:
British A-Level Chemistry: A2
Substitution: Addition-followed-by Elimination
Substitution: Nucleophilic @ Acyl-Nfg