2: calcium carbonate; water View Scheme

1: 1 h / 180 °C / 10 Torr 2: 83 percent / H2, Ca(OH)2 / 10percent Pd/C / dioxane / 48 h / 2068.6 Torr 3: 1.) NBS, benzoyl peroxide, 2.) H2O / 1.) CCl4, reflux, 1 h, 2.) reflux View Scheme

1: 1 h / 180 °C / 10 Torr 2: 83 percent / H2, Ca(OH)2 / 10percent Pd/C / dioxane / 48 h / 2068.6 Torr View Scheme