1: 75 percent / triethylamine / benzene / 1.) 8 deg C to room temp., 1 h, 2.) 0.5 h, reflux 2: 84 percent / iodine / methanol / 3 h / Irradiation View Scheme

1: With trichlorosilane in chloroform T=-10°C; 24 h; 2: With hydrogen; palladium on activated charcoal in methanol T=20°C; 2 h; Further stages. Title compound not separated from byproducts.;

1: With trichlorosilane in chloroform T=-10°C; 24 h; 2: With hydrogen; palladium on activated charcoal in methanol T=20°C; 2 h; Further stages. Title compound not separated from byproducts.;

1: With trichlorosilane in chloroform T=-10°C; 24 h; 2: With hydrogen; palladium on activated charcoal in methanol T=20°C; 2 h; Further stages. Title compound not separated from byproducts.;