trifluoroacetic anhydride in dichloromethane T=25°C; 2 h; Yields of byproduct given;

gallium trifluoromethanesulfonate; 1-dodecyloxy-4-(heptadecafluorooctyl)benzene in carbon dioxide T=50°C; P=60004.8 Torr; 1 h;

2: AlCl3 View Scheme

aluminium trichloride Title compound not separated from byproducts;

sodium hydroxide in methanol 3.5 h; Heating;

1: toluene-4-sulfonic acid / toluene / 18 h / |Molecular sieve; |Dean-Stark; |Inert atmosphere; |Reflux 2: palladium diacetate; triphenylphosphine; silver carbonate / 1,4-dioxane / 10 h / 120 °C / |Sealed tube 3: potassium carbonate / methanol / 1 h / |Reflux; |Inert atmosphere View Scheme