1: 59 percent / LiAlH4 / tetrahydrofuran / 2 h / Ambient temperature 2: hydrogen / 5percent Pd-C, PdCl2 / ethanol 3: 98 percent / NaIO4 / 2-methyl-propan-2-ol; H2O / 2 h / Ambient temperature 4: 89 percent / CrO3, pyridine / CH2Cl2 / 0.33 h / Ambient temperature View Scheme