1: 98 percent / tert-butylhydroperoxide / vanadyl acetylacetonate / benzene / 24 h / 40 °C 2: 82 percent / CrO3 / CH2Cl2 / 2 h / Ambient temperature 3: 1.) lithium diisopropylamide / 1.) THF, -78 deg C, 1 h, 2.) THF, from -78 deg C to r.t., 6 h 4: 99 percent / LiAlH4 / diethyl ether / 2 h / Ambient temperature 5: 91 percent / N,N-diisopropyloethylamine / CH2Cl2 / 12 h / Ambient temperature 6: 56 percent / CuSO4 / benzene / 12 h / Ambient temperature 7: 95 percent / Et3NHF / tetrahydrofuran / 3 h / Ambient temperature 8: 80 percent / lithium perhydro-9b-boraphenalyl hydride / tetrahydrofuran / 1.) -78 deg C, 30 min, 2.) room temp., 12 h 9: 1.) 47-52percent aq. HF, 2.) 5percent aq. HCl / 1.) acetonitrile, room temp., 30 min, 2.) THF, reflux, 20 h View Scheme