1: 70 percent / bromine / CCl4 / 15 °C / Irradiation 2: 83 percent / mercuric oxide, HClO4 / 1,2-dimethoxy-ethane / Heating 3: TsOH, nitrooxide / CH2Cl2 / 1 h / 0 °C 4: 90 percent / piperidine, pyridine / 0.17 h / 100 °C 5: 100 percent / H2 / PtO2 / methanol / 3 h 6: 86 percent / polyphosphonic acid / 0.17 h / 80 - 90 °C 7: 96 percent / H2, sodium acetate / 5percent Pd/C / acetic acid / 2 h View Scheme