ammonium hydroxide in ethanol 20 h; Heating;

1: 90 percent / BaMnO4 / benzene / 3 h / Heating 2: 78 percent / aq. NH4OH / ethanol / 20 h / Heating View Scheme

1: 68 percent / lithium aluminum hydride / tetrahydrofuran / 1.) 0 deg C, 2.) room temperature 2: 53 percent / potassium dichromate, Adogen-464 / ethyl acetate / 18 h / Heating 3: 51 percent / aq. ammonium hydroxide / ethanol / Heating View Scheme