1: 4-(tert-butylsulfanyl)bromobenzene With magnesium in tetrahydrofuran 6 h; Heating; 2: 2-Iodothiophene With [1,3-bis(diphenylphosphino) propane] dichloronickel(II) in tetrahydrofuran 12 h; Heating;

1.1: 82 percent / aq. HClO4; acetic anhydride / acetic acid / 3 h / cooling 2.1: Mg / tetrahydrofuran / 6 h / Heating 2.2: 58 percent / Ni(dppp)Cl2 / tetrahydrofuran / 12 h / Heating View Scheme

tetrakis(triphenylphosphine) palladium(0) in toluene Stille cross-coupling; Heating;