1: 70 percent / LiAlH4 / tetrahydrofuran / 4 h / 0 - 5 °C 2: 65 percent / conc. H2SO4, KNO3 / acetic acid / 1.) 0 deg C, 2.) 20 deg C, 90 min 3: 1.) H2 / 1.) Raney nickel / 1.) ethanol, room temperature, 60 min, 2.) room temperature View Scheme

lithium aluminium tetrahydride in tetrahydrofuran T=0 - 5°C; 4 h;