1: 52 percent / potassium tert-butoxide / tetrahydrofuran / 13 h / Heating 2: 89 percent / pyridine / CH2Cl2 / 13 h / Ambient temperature 3: 81 percent / toluene / 12 h / Heating 4: 87 percent / H2, conc. HCl / 10percent Pd/C / ethanol / 12 h / 3102.9 Torr 5: 72 percent / pyridine / CH2Cl2 / 13 h / Ambient temperature 6: 90 percent / H2 / 10percent Pd/C / ethanol / 8 h / 2585.7 Torr 7: 48percent HBF4, NaNO2 / H2O / 0.17 h / 0 °C 8: NaOAc / 1,1,2-trichloro-1,2,2-trifluoro-ethane / 24 h View Scheme

1: 72 percent / pyridine / CH2Cl2 / 13 h / Ambient temperature 2: 90 percent / H2 / 10percent Pd/C / ethanol / 8 h / 2585.7 Torr 3: 48percent HBF4, NaNO2 / H2O / 0.17 h / 0 °C 4: NaOAc / 1,1,2-trichloro-1,2,2-trifluoro-ethane / 24 h View Scheme

1: 81 percent / toluene / 12 h / Heating 2: 87 percent / H2, conc. HCl / 10percent Pd/C / ethanol / 12 h / 3102.9 Torr 3: 72 percent / pyridine / CH2Cl2 / 13 h / Ambient temperature 4: 90 percent / H2 / 10percent Pd/C / ethanol / 8 h / 2585.7 Torr 5: 48percent HBF4, NaNO2 / H2O / 0.17 h / 0 °C 6: NaOAc / 1,1,2-trichloro-1,2,2-trifluoro-ethane / 24 h View Scheme

1: 89 percent / pyridine / CH2Cl2 / 13 h / Ambient temperature 2: 81 percent / toluene / 12 h / Heating 3: 87 percent / H2, conc. HCl / 10percent Pd/C / ethanol / 12 h / 3102.9 Torr 4: 72 percent / pyridine / CH2Cl2 / 13 h / Ambient temperature 5: 90 percent / H2 / 10percent Pd/C / ethanol / 8 h / 2585.7 Torr 6: 48percent HBF4, NaNO2 / H2O / 0.17 h / 0 °C 7: NaOAc / 1,1,2-trichloro-1,2,2-trifluoro-ethane / 24 h View Scheme

1: 81 percent / toluene / 12 h / Heating 2: 87 percent / H2, conc. HCl / 10percent Pd/C / ethanol / 12 h / 3102.9 Torr 3: 72 percent / pyridine / CH2Cl2 / 13 h / Ambient temperature 4: 90 percent / H2 / 10percent Pd/C / ethanol / 8 h / 2585.7 Torr 5: 48percent HBF4, NaNO2 / H2O / 0.17 h / 0 °C 6: NaOAc / 1,1,2-trichloro-1,2,2-trifluoro-ethane / 24 h View Scheme

1: 87 percent / H2, conc. HCl / 10percent Pd/C / ethanol / 12 h / 3102.9 Torr 2: 72 percent / pyridine / CH2Cl2 / 13 h / Ambient temperature 3: 90 percent / H2 / 10percent Pd/C / ethanol / 8 h / 2585.7 Torr 4: 48percent HBF4, NaNO2 / H2O / 0.17 h / 0 °C 5: NaOAc / 1,1,2-trichloro-1,2,2-trifluoro-ethane / 24 h View Scheme

1: 90 percent / H2 / 10percent Pd/C / ethanol / 8 h / 2585.7 Torr 2: 48percent HBF4, NaNO2 / H2O / 0.17 h / 0 °C 3: NaOAc / 1,1,2-trichloro-1,2,2-trifluoro-ethane / 24 h View Scheme

1: 72 percent / pyridine / CH2Cl2 / 13 h / Ambient temperature 2: 90 percent / H2 / 10percent Pd/C / ethanol / 8 h / 2585.7 Torr 3: 48percent HBF4, NaNO2 / H2O / 0.17 h / 0 °C 4: NaOAc / 1,1,2-trichloro-1,2,2-trifluoro-ethane / 24 h View Scheme

sodium acetate in 1,2,2-trifluoro-trichloroethane 24 h;

1: 48percent HBF4, NaNO2 / H2O / 0.17 h / 0 °C 2: NaOAc / 1,1,2-trichloro-1,2,2-trifluoro-ethane / 24 h View Scheme