pyridinium p-toluenesulfonate; (S)-pyrrolidine-2-carboxamide in acetonitrile T=50°C; Hajos-Parrish reaction; 144 h; enantioselective reaction;

(i) pyrrolidine, benzene, (ii) /BRN= 506021/, aq. NaOAc, AcOH; Multistep reaction;