1: tetrahydrofuran / 2 h / Ambient temperature 2: 2 M aq. NaN3 / tetrahydrofuran; H2O / 2 h / Ambient temperature 3: toluene / 0.5 h / Heating 4: toluene / 2 h / 60 °C 5: 100 percent / hydrogen / 10percent Pd-C / ethanol / 2 h 6: acetonitrile / 1 h 7: NaBH3CN / acetonitrile / 12 h / 50 °C 8: 85 percent / molecular sieves 3 Angstroem / ethanol / 72 h / Heating 9: hydrogen, 60percent HClO4 / Pd-black / acetic acid / 20 h / Ambient temperature 10: 5 M KOH / methanol / 3 h / Ambient temperature 11: DCC / tetrahydrofuran 12: BH3*SMe2 / tetrahydrofuran / 3 h / Ambient temperature 13: CAN / acetonitrile; H2O / 0.08 h / Ambient temperature 14: 74 percent / Na2CO3 / ethanol / 3 h / Ambient temperature 15: 24 percent / LiClO4 / acetonitrile / 1 h / electrolysis View Scheme