反应详情

Preparation according to Example 51: Enantiomer E1 of 3-(3,5-difluorophenyl)-pyrrolidin-3-ol (0.18 g, 0.92 mmol), acetonitrile (6 mL), potassium carbonate (0.25 g, 1.84 mmol) and allyl bromide (0.077 mL, 0.92 mmol). Flash chromatography on silica gel (ethyl acetate/methanol, 10:1). Yield: 0.1 g. [α]D=+22.4° (methanol). The amine was converted to the oxalic acid salt and recrystallized from methanol/diisopropyl ether: M.p. 104-105° C.; MS m/z (relative intensity, 70 eV) 239 (M+, 40), 83 (bp), 198 (84), 82 (13), 14 (33), 127 (31).

1. customPreparation
2. customrecrystallized from methanol/diisopropyl ether