1.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 15 h / 20 °C 1.2: 2 h / 20 °C 2.1: potassium hydroxide / methanol / 48 h / 20 °C 3.1: tin(IV) chloride / dichloromethane / 20 °C 4.1: sodium hydroxide / methanol / 12 h / 20 °C 5.1: triethylsilane; trifluoroacetic acid / 4 h / 20 °C 6.1: boron trichloride / dichloromethane / 0 °C View Scheme

1.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 15 h / 20 °C 1.2: 2 h / 20 °C 2.1: potassium hydroxide / methanol / 48 h / 20 °C 3.1: tin(IV) chloride / dichloromethane / 20 °C View Scheme