1: 92 percent / iodotrimethylsilane / CH2Cl2 / 24 h / Ambient temperature 2: 19 percent Chromat. / Me3SnLi / tetrahydrofuran / 0.5 h / Ambient temperature; other (trimethylstannyl)alkali reagent; also in the presence of tert-butylamine or dicyclohexylphosphine View Scheme

1: 92 percent / iodotrimethylsilane / CH2Cl2 / 24 h / Ambient temperature 2: 63 percent Chromat. / Me3SnLi / tetrahydrofuran / 0.5 h / Ambient temperature; other (trimethylstannyl)alkali reagent; also in the presence of tert-butylamine or dicyclohexylphosphine View Scheme

1: 92 percent / iodotrimethylsilane / CH2Cl2 / 24 h / Ambient temperature 2: 4 percent Chromat. / Me3SnLi / tetrahydrofuran / 0.5 h / Ambient temperature; other (trimethylstannyl)alkali reagent; also in the presence of tert-butylamine or dicyclohexylphosphine View Scheme