This organic chemistry video tutorial provides the mechanism of the reductive amination reaction of ketones and aldehydes. It discusses the use of reducing agents such as sodium cyanoborohydride NaBH3CN and sodium borohydride NaBH4 to reduce ketones into amines. The intermediates of this reaction involve a carbinol amine, imine, and an iminium ion. This video contains a few examples and practice problems of ketones with ammonia and a primary amine.