1: acetic anhydride; 2-methoxy-phenol With sulfuric acid in acetic anhydride Acetylation; 0.5 h; refluxing; 2: 1-acetoxy-2-methoxybenzene With sulfuryl dichloride in chloroform T=20°C; Chlorination; 24 h; 3: 2-acetoxy-4-chloro-1-methoxybenzene With aluminium trichloride T=100°C; Fries rearrangement; 1 h; heating on boiling water bath;

caesium carbonate in 2,2,2-trifluoroethanol 18 h; Irradiation;