1: 92 percent / m-chloroperoxybenzoic acid / CHCl3 / 1 h / Ambient temperature; excess of reagent 2: 68 percent / triethylamine / acetonitrile / 0.5 h / Heating View Scheme

With  3-chloro-benzenecarboperoxoic acid in  chloroform 1 h;  Ambient temperatureexcess of reagent;   

With  sodium hydroxide in  1,4-dioxane 1 h;  Heating;   

Multi-step reaction with 4 steps 1: 91 percent / NaH, ethanol / toluene / 2 h / Ambient temperature2: 90 percent / conc. HCl / ethanol / 1 h / 80 °C3: 94 percent / chloranil / toluene / 1.5 h / Heating4: 89 percent / 1N-NaOH / dioxane / 1 h / Heating