1: 86 percent / diisobutylaluminum hydride, 2,6-di-tert-butyl-4-methylphenol / toluene / -78 deg C to -20 deg C for 2h and then -20 deg C 1.7h 2: 96 percent / H2 / Lindlar / benzene; cyclohexane; cyclohexene / 13 h / 26 °C / 760 Torr 3: 100 percent 4: 95 percent / (n-C4H9)4NF / tetrahydrofuran / 3 h / 26 °C 5: 20percent NaOH-H2O / 18.3 h / 16 °C 6: Jones reagent / 0.33 h / -30 °C 7: CH3COOH / H2O; tetrahydrofuran / 16 deg C for 1h and 27 deg C for 29h View Scheme