1: 79 percent / H2 / 10percent Pd/C / acetic acid / 2 h / 1216 Torr / Ambient temperature 2: 74 percent / conc. HCl, H2 / 10percent Pd/C / methanol / 4.5 h / 1216 Torr / Ambient temperature 3: 1.) NaH / 1.) DME, RT, 20 min, 2.) RT, 1 h 4: 32 percent / 30percent aq. H2O2 / CH2Cl2 / 2.5 h / Ambient temperature 5: 1.) NaH / 1.) DME, RT, 30 min, 2.) DME, reflux, 1 h View Scheme