1: 1.) n-BuLi / 1.) THF, hexane, -60 deg C, 5 h, 2.) THF, 15 h 2: Raney nickel / aq. ethanol / 1 h / Heating View Scheme

potassium carbonate in N,N-dimethyl-formamide T=60°C;

1: 1-[(Methylethyl)thio]-4-fluorobenzene With n-butyllithium in tetrahydrofuran; hexane T=-85°C; Metallation; 6 h; 2: methyl iodide in tetrahydrofuran; hexane T=20°C; Methylation; 3 h; Title compound not separated from byproducts;