One-Pot Stereoselective Synthesis of anti 3-Alkyl and 3-Aryl-N-p-tosyl-aziridine-2-ketones and 3-Aryl-N-p-tosyl-aziridine-2-carboxylates - Chen, Dianjun; Timmons, Cody; Guo, Li; Xu, Xin; Li, Guigen (Synthesis, 2004)