1: Ph2SiH; AIBN / dioxane / 18 h / Heating 2: 16.36 g / H2O; AcOH / 16 h / 20 °C 3: 71.1 percent / H2O; HCl / 72 h / 20 °C 4: 81 percent / HCl / 1 h / 20 °C View Scheme

1: Ph2SiH; AIBN / dioxane / 18 h / Heating 2: 16.36 g / H2O; AcOH / 16 h / 20 °C 3: 71.1 percent / H2O; HCl / 72 h / 20 °C 4: 81 percent / HCl / 1 h / 20 °C 5: pyridine / 16 h / 20 °C View Scheme

2,2'-azo-bisisobutyronitrile; tri-n-butyl-tin hydride in xylene Reduction; 3 h; Product distribution;