1: 12.7 g / liq. NH3, 2-propanol, Na / tetrahydrofuran 2: 1.) ethereal HCl, 2.) H2NOH*HCl, pyridine, 3.) HBr, CH3COOH 3: 1.76 g / 2 N HCl / 2 h / Heating 4: 4.78 g / aq. HCl, H2NOH*HCl, Na2SO4 / 1 h / Heating 5: 2.78 percent / aq. H2SO4 / a) 0 deg C, 1 h, b) 0 deg C to 75 deg C, 0.5 h 6: 595 mg / LiAlH4 / tetrahydrofuran / 2 h / Ambient temperature View Scheme