1: H2 / 5percent palladium on charcoal / ethanol / 16 h / Ambient temperature 2: tert-butyl hypochlorite / diethyl ether / 0.5 h / 0 °C 3: sodium ethoxide / ethanol / 1 h / 40 °C 4: 5percent sulfuric acid / H2O / 2 h / Ambient temperature 5: 86 percent / 10percent NaOH / H2O / 2 h / 0 °C View Scheme