Fig. 3: Asymmetric N-oxidation of cyclic tertiary amines.
From: Asymmetric N-oxidation catalyzed by bisguanidinium dinuclear oxodiperoxomolybdosulfate
aReaction conditions: 3 (0.05 mmol), BG1 (8 mol%), Ag2MoO4 (8 mol%), KHSO4 (1.0 equiv.) and 35% aqueous H2O2 (4.0 equiv.) in 0.5 mL iPr2O at 0 °C for 48–72 h, The isolated yields were given, The er values were determined by HPLC analysis on a chiral stationary phase. bBG1 (4 mol%), Ag2MoO4 (2 mol%) and H2O2 (2.0 equiv.) were used.
