1: 2-bromo-4-chloro-toluene With magnesium in tetrahydrofuran 2: acetyl chloride in tetrahydrofuran T=0 - 20°C;

1: methyl iodide With iodine; magnesium in diethyl ether 0.5 h; Heating / reflux; 2: 2-methyl-5-chlorobenzonitrile in diethyl ether T=20°C; Heating / reflux; 3: With sulfuric acid in diethyl ether; water T=40°C; 1 h;

hydrogenchloride 1) benzene, 3h, reflux 2) 6-8h, reflux; Multistep reaction;