1: 77 percent / 20 h / 155 °C 2: 1.) BuLi / 1.) THF, hexane, 2 h, -20 deg C, 2.) 30 min, -78 degC 3: LiAlH4 / diethyl ether / 1 h / 0 °C View Scheme

1: 1.) BuLi / 1.) THF, hexane, 2 h, -20 deg C, 2.) 30 min, -78 degC 2: LiAlH4 / diethyl ether / 1 h / 0 °C View Scheme

1: 94 percent / Et3N / CH2Cl2 / 0.5 h / 0 °C 2: 2. H2O / 1. benzene, DMF, 16h reflux 3: 60 percent / NaOH / methanol / a) 24h b) H2O, 0 deg C, HCl 4: 90 percent / hexamethylphosphoric acid triamide / 3 h / 180 °C 5: 90 percent / LiAlH4 / diethyl ether / a. reflux while adding reagent b. overnight room temperature c. reflux, 3h 6: 70 percent / pyridinium chlorochromate, NaOAc / CH2Cl2 / 3 h / Ambient temperature 7: 70 percent / Mg / tetrahydrofuran / a. ice-cooled solution, 10 min b. overnight room temperature c. 3h reflux 8: 50 percent / mercuric acetate / 16 h / Heating 9: 80 percent / 0.58 h / 180 °C / sealed tube 10: 90 percent / LiAlH4 / diethyl ether / a. reflux while adding reagent b. overnight room temperature c. 1h reflux 11: Et3N / CH2Cl2 / 0 °C 12: 1.) cuprous iodide / 1.) Et2O, -10 deg C, 1o min 2. 4h, 0 deg C View Scheme

1: 70 percent / Mg / tetrahydrofuran / a. ice-cooled solution, 10 min b. overnight room temperature c. 3h reflux 2: 50 percent / mercuric acetate / 16 h / Heating 3: 80 percent / 0.58 h / 180 °C / sealed tube 4: 90 percent / LiAlH4 / diethyl ether / a. reflux while adding reagent b. overnight room temperature c. 1h reflux 5: Et3N / CH2Cl2 / 0 °C 6: 1.) cuprous iodide / 1.) Et2O, -10 deg C, 1o min 2. 4h, 0 deg C View Scheme

1: 50 percent / mercuric acetate / 16 h / Heating 2: 80 percent / 0.58 h / 180 °C / sealed tube 3: 90 percent / LiAlH4 / diethyl ether / a. reflux while adding reagent b. overnight room temperature c. 1h reflux 4: Et3N / CH2Cl2 / 0 °C 5: 1.) cuprous iodide / 1.) Et2O, -10 deg C, 1o min 2. 4h, 0 deg C View Scheme

1: 80 percent / 0.58 h / 180 °C / sealed tube 2: 90 percent / LiAlH4 / diethyl ether / a. reflux while adding reagent b. overnight room temperature c. 1h reflux 3: Et3N / CH2Cl2 / 0 °C 4: 1.) cuprous iodide / 1.) Et2O, -10 deg C, 1o min 2. 4h, 0 deg C View Scheme

1: Et3N / CH2Cl2 / 0 °C 2: 1.) cuprous iodide / 1.) Et2O, -10 deg C, 1o min 2. 4h, 0 deg C View Scheme

1: 90 percent / LiAlH4 / diethyl ether / a. reflux while adding reagent b. overnight room temperature c. 1h reflux 2: Et3N / CH2Cl2 / 0 °C 3: 1.) cuprous iodide / 1.) Et2O, -10 deg C, 1o min 2. 4h, 0 deg C View Scheme

1: 90 percent / LiAlH4 / diethyl ether / a. reflux while adding reagent b. overnight room temperature c. reflux, 3h 2: 70 percent / pyridinium chlorochromate, NaOAc / CH2Cl2 / 3 h / Ambient temperature 3: 70 percent / Mg / tetrahydrofuran / a. ice-cooled solution, 10 min b. overnight room temperature c. 3h reflux 4: 50 percent / mercuric acetate / 16 h / Heating 5: 80 percent / 0.58 h / 180 °C / sealed tube 6: 90 percent / LiAlH4 / diethyl ether / a. reflux while adding reagent b. overnight room temperature c. 1h reflux 7: Et3N / CH2Cl2 / 0 °C 8: 1.) cuprous iodide / 1.) Et2O, -10 deg C, 1o min 2. 4h, 0 deg C View Scheme

1: 2. H2O / 1. benzene, DMF, 16h reflux 2: 60 percent / NaOH / methanol / a) 24h b) H2O, 0 deg C, HCl 3: 90 percent / hexamethylphosphoric acid triamide / 3 h / 180 °C 4: 90 percent / LiAlH4 / diethyl ether / a. reflux while adding reagent b. overnight room temperature c. reflux, 3h 5: 70 percent / pyridinium chlorochromate, NaOAc / CH2Cl2 / 3 h / Ambient temperature 6: 70 percent / Mg / tetrahydrofuran / a. ice-cooled solution, 10 min b. overnight room temperature c. 3h reflux 7: 50 percent / mercuric acetate / 16 h / Heating 8: 80 percent / 0.58 h / 180 °C / sealed tube 9: 90 percent / LiAlH4 / diethyl ether / a. reflux while adding reagent b. overnight room temperature c. 1h reflux 10: Et3N / CH2Cl2 / 0 °C 11: 1.) cuprous iodide / 1.) Et2O, -10 deg C, 1o min 2. 4h, 0 deg C View Scheme