2,2'-azo-bisisobutyronitrile; tri-n-butyl-tin hydride in toluene T=80°C; 0.833333 h;

1: 90 percent / tri-n-butyltin hydride, AIBN / toluene / 0.83 h / 80 °C 2: LiAlH4 / tetrahydrofuran / 1.) 1 h, 2.) room temp., 1 h View Scheme