1: 1) Hg(II) trifluoroacetate, N(C2H5)3, 2) NaBH4, NaOMe / 1) THF, -78 deg C, 1 h, 2) THF - MeOH, -78 deg C, 1 h 2: 74 percent / tetrabutylammoniumfluoride / tetrahydrofuran / 15 h / 15 °C 3: alkaline hydrolysis View Scheme

1: 81 percent / hydrogen / Lindlar catalyst / benzene; cyclohexane / 12 h / 23 °C 2: 85 percent / acetic acid / tetrahydrofuran; H2O / 1.5 h / 55 °C View Scheme