1: 85 percent / sodium hydride / dimethylformamide 2: 76 percent / LiAlH4 3: 93 percent 4: 76 percent / Li / liquid ammonia View Scheme

1: 85 percent / sodium hydride / dimethylformamide 2: 76 percent / LiAlH4 3: 93 percent 4: 76 percent / Li / liquid ammonia 6: 1.) LDA, phenylselenyl bromide; 2.) 30percent H2O2 / 2.) CH2Cl2/pyridine, O degC to RT 7: 44 percent / DiBAH / toluene / 4 h / -78 °C View Scheme