1: 94 percent / (TMS)3SiH, AIBN / toluene / 2 h / 80 °C 2: 37 percent / tetrahydrofuran / 0.08 h / -78 °C 3: 90 percent / NH4F / methanol / 24 h / 60 °C 4: H2O, air / 6 h / Ambient temperature; Irradiation View Scheme

1: 94 percent / (TMS)3SiH, AIBN / toluene / 2 h / 80 °C 2: 37 percent / tetrahydrofuran / 0.08 h / -78 °C 3: 90 percent / NH4F / methanol / 24 h / 60 °C 4: 1.) H2O, air, 2.) imidazole / 1.) r.t., irradiation, 6 h, 2.) DMF View Scheme