1: 1-bromo-2-((phenylsulfonyl)methyl)benzene With sulfur; potassium tert-butylate in tetrahydrofuran T=20°C; 6 h; 2: methyl iodide in tetrahydrofuran T=20°C; 1 h;

1: CH2Cl2 / 1 h / 20 °C 2: 318 mg / Lawesson's reagent / toluene / 24 h / Heating View Scheme