1: 90 percent / tert-BuOK / 50 - 60 °C 2: 0.5 h / 110 - 120 °C 3: ammonium persulfate / methanol; H2O / Heating 4: 1) SOCl2, 2) MeONa / 1) CHCl3, reflux, 2) MeOH, reflux View Scheme

1: 0.5 h / 110 - 120 °C 2: ammonium persulfate / methanol; H2O / Heating 3: 1) SOCl2, 2) MeONa / 1) CHCl3, reflux, 2) MeOH, reflux View Scheme

thionyl chloride; sodium methylate 1) CHCl3, reflux, 2) MeOH, reflux; Yield given. Multistep reaction;

3-chloro-benzenecarboperoxoic acid in chloroform ice-cooling;