water; calcium carbonate

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

calcium hydroxide powder; hydrogen; palladium on activated charcoal in 1,4-dioxane P=2068.6 Torr; 48 h;