Pierfrancesco Bravo, Giancarlo Cavicchio, Marcello Crucianelli, Andrea Poggiali, Alessandro Volonterio and Matteo Zanda
Azidation of (2S,RS)-1–(p-tolysulfinyl)butan-2-ol under Mitsunobu conditions is the key step for a highly stereoselective preparation of enantiomerically pure amino compounds via chiral sulfoxide chemistry.