1: 2-chloro-1,1,2-trifluorotriethylamine / CH2Cl2 / 16.5 h / Ambient temperature 2: 62.5 percent / ruthenium tetraoxide / ethyl acetate; H2O / 62.5 h 3: 16.1 percent / conc. HCl / 4 h / Heating View Scheme

1: pyridine 2: aqueous methanol. NaOH / 0 °C 3: aqueous NaOH 4: aqueous HCl View Scheme