The best and most reliable method for the creation of a carbon-nitrogen stereocenter is to add an organometallic reagent across the carbon-nitrogen double bond of an enantiopure sulfinimine (RS(O)N=CR¹,R²). Recent applications of sulfinimine chemistry for the asymmetric synthesis of 2,3-diaminoesters, the first enantiopure examples of 2H-azirine 3-carboxylates, and a new method for the synthesis of functionalized trans-2,5-disubstituted pyrrolidines will be presented.