1: PBr3 / 1.) pyridine, hexane, 3-5 deg C, 3h; 2.) 20 deg C, 12 h 2: 1.) Mg / 1.) ether; 2.) ether; HCl 3: 89 percent / LiAlH4 / diethyl ether View Scheme

1: PBr3 / 1.) pyridine, hexane, 3-5 deg C, 3h; 2.) 20 deg C, 12 h 2: 1.) Mg / 2.) Li2CuCl4 / 1.) THF; 2.) 0 deg C, 3 h, 20 deg C, 1 h 3: 89 percent / potassium iodide / acetic acid / 24 h / Heating View Scheme