How is N-Methylethanamine (CAS: 624-78-2) typically synthesized?

N-Methylethanamine is typically synthesized by the reaction of methylamine with ethanal (acetaldehyde). The synthesis involves the nucleophilic addition of methylamine to the carbonyl group of ethanal, followed by reduction to form N-methylethanamine. Common catalysts include palladium on carbon, and the reaction is carried out in the presence of a base like sodium hydroxide to ensure high yield and selectivity.