Strecker Synthesis is one of the first laboratory methods for synthesizing an alpha amino acid.
Strecker synthesis starts out with a nucleophilic addition of nitrogen to an aldehyde followed by a SECOND nucleophilic addition of cyanide (nitrile group) to the imine intermediate.
This video walks you through the overall reaction followed by a step by step breakdown of the Strecker reaction and mechanism.
(Watch on YouTube: Strecker Synthesis. Click cc on the bottom right for video transcript)