1: 91 percent / Pd(PPh3)4 / tetrahydrofuran / 2 h / Ambient temperature 2: 1 N NaOH / dioxane 3: 1.) diisobutylaluminum hydride, 2.) 1 N HCl / 1.) hexane, ether, -10 deg C, 1 h; 2.) ether, 2 h, room temp. View Scheme