Nitriles can be prepared by reacting haloalkanes with sodium cyanide. The reduction of nitriles with LiAlH 4 produces amines.

Step 1. Obtaining nitrile from primary or secondary haloalkanes.
sintesis-aminas-reduccion-nitrilos
Step 2. Reduction of the nitrile to amine
sintesis-aminas-reduccion-nitrilos
Note that the final amine has one more carbon than the starting haloalkane.