sulfuric acid 66 h; Heating;

1: methanol With iodobenzene; toluene-4-sulfonic acid; sodium sulfate; 3-chloro-benzenecarboperoxoic acid T=0°C; 0.166667 h; Inert atmosphere; 2: 3-fluorophthalimide With 1,8-diazabicyclo[5.4.0]undec-7-ene T=0 - 20°C; Hofmann-type rearrangement; 4 h; Inert atmosphere; regioselective reaction;