1: 32.6 percent / LiAlH4 / diethyl ether / 1) 0 deg C, 10 min, 2) reflux, 6.5 h 2: potassium hydride / hexamethylphosphoric acid triamide / 1.5 h / 102 °C 3: 71 percent / H2 / PtO2 / diethyl ether / 3 h View Scheme

Multi-step reaction with 2 steps 1: 32.6 percent / LiAlH4 / diethyl ether / 1) 0 deg C, 10 min, 2) reflux, 6.5 h2: potassium hydride / hexamethylphosphoric acid triamide / 1.5 h / 102 °C