1: 75 percent / 1) LAH / diethyl ether / Ambient temperature 2: 75 percent / LAH / diethyl ether 3: 50 percent / mercuric acetate / 10 h / Heating 4: 0.5 h / 185 - 190 °C 5: 70 percent / 1.) r. t. overnight 2.) 3 h 50 deg C 6: 74 percent / PTS / benzene / 6 h / Heating 7: H2O / PTS / acetone / 24 h / Ambient temperature 8: 79 percent / diethyl ether / 1.) 8 h 2.) reflux 2 h View Scheme

1: 75 percent / 1) LAH / diethyl ether / Ambient temperature 2: 75 percent / LAH / diethyl ether 3: 50 percent / mercuric acetate / 10 h / Heating View Scheme