1: sodium dichromate dihydrate, conc. H2SO4 / diethyl ether / 2 h / 20 - 25 °C 2: 10 h / Irradiation 3: zinc iodide / 0.17 h 4: 77 percent / LiAlH4 / diethyl ether / 4 h / Ambient temperature View Scheme

1: 10 h / Irradiation 2: zinc iodide / 0.17 h 3: 77 percent / LiAlH4 / diethyl ether / 4 h / Ambient temperature View Scheme

1: zinc iodide / 0.17 h 2: 77 percent / LiAlH4 / diethyl ether / 4 h / Ambient temperature View Scheme

1: LiAlH4 / diethyl ether / 4 h / Ambient temperature 2: sodium nitrite, 10percent aq. acetic acid / Ambient temperature 3: 77 percent / LiAlH4 / diethyl ether / 4 h / Ambient temperature View Scheme

1: sodium nitrite, 10percent aq. acetic acid / Ambient temperature 2: 77 percent / LiAlH4 / diethyl ether / 4 h / Ambient temperature View Scheme