1: SOCl2 2: 75 percent / pyridine / 1 h / 10 °C 3: 63 percent / 0.25 h / Heating 4: 53 percent / N2H4*H2O / Raney nickel / ethanol / 12 h / Heating 5: 68 percent / benzene / 4 h / Heating 6: 60 percent / NaOAc, glacial AcOH / 6 h / Heating View Scheme

1: 63 percent / 0.25 h / Heating 2: 53 percent / N2H4*H2O / Raney nickel / ethanol / 12 h / Heating 3: 68 percent / benzene / 4 h / Heating 4: 60 percent / NaOAc, glacial AcOH / 6 h / Heating View Scheme

1: 53 percent / N2H4*H2O / Raney nickel / ethanol / 12 h / Heating 2: 68 percent / benzene / 4 h / Heating 3: 60 percent / NaOAc, glacial AcOH / 6 h / Heating View Scheme

1: 75 percent / pyridine / 1 h / 10 °C 2: 63 percent / 0.25 h / Heating 3: 53 percent / N2H4*H2O / Raney nickel / ethanol / 12 h / Heating 4: 68 percent / benzene / 4 h / Heating 5: 60 percent / NaOAc, glacial AcOH / 6 h / Heating View Scheme

sodium acetate; acetic acid 6 h; Heating;

1: 68 percent / benzene / 4 h / Heating 2: 60 percent / NaOAc, glacial AcOH / 6 h / Heating View Scheme