1: phenol With potassium hydroxide in toluene T=50°C; 0.166667 h; 2: With carbon dioxide T=190°C; P=19001.3 Torr; 2 h; Inert atmosphereAutoclave; 3: [4-iodophenyl]methanone With PEPPSI-IPr catalyst; acetic acid; silver carbonate T=130°C; P=19001.3 Torr; 16 h; Inert atmosphereAutoclave; Reagent/catalyst; regioselective reaction;