nickel in ethanol 2 h; Heating;

1: BF3*Et2O 2: 12 percent / acetone / 1 h / Ambient temperature; Irradiation 3: 53 percent / Raney Ni / ethanol / Heating View Scheme

1: 63 percent / Na2CO3 / H2O / 1 h / 25 °C 2: SOCl2 / dimethylformamide; CHCl3 / 2 h / Heating 3: Et3N / dimethylformamide; CH2Cl2 / 1.) -35 deg C, 30 min, 2.) 25 deg C, 3 h 4: 87 percent / BF3-etherate / tetrahydrofuran; ethyl acetate / 25 °C 5: 12 percent / acetone / 1 h / 10 - 20 °C / Irradiation 6: 53 percent / Raney Ni / ethanol / 2 h / Heating View Scheme

1: 63 percent / Na2CO3 / H2O / 1 h / 25 °C 2: SOCl2 / dimethylformamide; CHCl3 / 2 h / Heating 3: Et3N / dimethylformamide; CH2Cl2 / 1.) -35 deg C, 30 min, 2.) 25 deg C, 3 h 4: 87 percent / BF3-etherate / tetrahydrofuran; ethyl acetate / 25 °C 5: 12 percent / acetone / 1 h / 10 - 20 °C / Irradiation 6: 53 percent / Raney Ni / ethanol / 2 h / Heating View Scheme

1: Et3N / dimethylformamide; CH2Cl2 / 1.) -35 deg C, 30 min, 2.) 25 deg C, 3 h 2: 87 percent / BF3-etherate / tetrahydrofuran; ethyl acetate / 25 °C 3: 12 percent / acetone / 1 h / 10 - 20 °C / Irradiation 4: 53 percent / Raney Ni / ethanol / 2 h / Heating View Scheme

1: SOCl2 / dimethylformamide; CHCl3 / 2 h / Heating 2: Et3N / dimethylformamide; CH2Cl2 / 1.) -35 deg C, 30 min, 2.) 25 deg C, 3 h 3: 87 percent / BF3-etherate / tetrahydrofuran; ethyl acetate / 25 °C 4: 12 percent / acetone / 1 h / 10 - 20 °C / Irradiation 5: 53 percent / Raney Ni / ethanol / 2 h / Heating View Scheme

1: 12 percent / acetone / 1 h / Ambient temperature; Irradiation 2: 53 percent / Raney Ni / ethanol / Heating View Scheme