sodium hydride; sodium iodide 1.) DMF, THF, light petroleum, reflux, 30 min, 2.) reflux, 24 h; Yield given. Multistep reaction;

lithium aluminium tetrahydride in diethyl ether 4 h; Heating;

1: 92 percent / LiAlH4 / diethyl ether / 4 h / Heating 2: tetrahydrofuran; CCl4 / -40 deg C -> 20 deg C 3: 8.84 g / NaOMe / methanol / 1.) 20 deg C, 16 h, 2.) reflux, 4 h View Scheme