nickel in ethanol 2 h; Heating;

1: BF3*Et2O 2: 56 percent / acetone / 0.42 h / Ambient temperature; Irradiation 3: 49 percent / Raney Ni / ethanol / Heating View Scheme

1: 78 percent / K2CO3 / dimethylsulfoxide / Heating; 25 deg C, overnight; 55 deg C, 6 h 2: 82 percent / CrO3, pyridine / CH2Cl2 / 0.5 h / 25 °C 3: 68 percent / BF3-etherate / diethyl ether / 25 °C 4: 56 percent / acetone / 0.42 h / 10 - 20 °C / Irradiation 5: 49 percent / Raney Ni / ethanol / 2 h / Heating View Scheme

1: 78 percent / K2CO3 / dimethylsulfoxide / Heating; 25 deg C, overnight; 55 deg C, 6 h 2: 82 percent / CrO3, pyridine / CH2Cl2 / 0.5 h / 25 °C 3: 68 percent / BF3-etherate / diethyl ether / 25 °C 4: 56 percent / acetone / 0.42 h / 10 - 20 °C / Irradiation 5: 49 percent / Raney Ni / ethanol / 2 h / Heating View Scheme

1: 82 percent / CrO3, pyridine / CH2Cl2 / 0.5 h / 25 °C 2: 68 percent / BF3-etherate / diethyl ether / 25 °C 3: 56 percent / acetone / 0.42 h / 10 - 20 °C / Irradiation 4: 49 percent / Raney Ni / ethanol / 2 h / Heating View Scheme

1: 56 percent / acetone / 0.42 h / Ambient temperature; Irradiation 2: 49 percent / Raney Ni / ethanol / Heating View Scheme