1: 65 percent / 1.) BuLi / tetrahydrofuran / 1.) from -78 deg C to room temp.; 2.) from -30 deg C to room temp. 2: 72 percent / diethyl ether / 1.5 h / Irradiation 3: 80 percent / LiAlH4 / diethyl ether / 1 h / 0 °C View Scheme

1: 65 percent / 1.) BuLi / tetrahydrofuran / 1.) from -78 deg C to room temp.; 2.) from -30 deg C to room temp. 2: 72 percent / diethyl ether / 1.5 h / Irradiation View Scheme