acetone; sodium iodide

lithium aluminium tetrahydride; hydrogen iodide 1.) Et2O, reflux, 1 h; 2.) -30 deg C, 5 min; room temp., 0.5 h; Yield given. Multistep reaction;

hydrogen iodide in diethyl ether 1.) -30 deg C, 5 min; 2.) room temp., 0.5 h; Yield given;