1: bromine / dichloromethane / 1 h / 25 - 30 °C 2: AlCl3, aluminium chloride / dichloromethane / 15 - 20 °C 3: triethylamine / dichloromethane / 2 h / 25 - 30 °C 4: sodium tetrahydroborate / methanol / 0.5 h / 0 - 5 °C 5: hydrogenchloride / methanol; water / 5 h / 90 - 95 °C 6: AlCl3, aluminium chloride / dichloromethane / 5.08 h / 0 - 30 °C View Scheme

1: AlCl3, aluminium chloride / dichloromethane / 15 - 20 °C 2: triethylamine / dichloromethane / 2 h / 25 - 30 °C 3: sodium tetrahydroborate / methanol / 0.5 h / 0 - 5 °C 4: hydrogenchloride / methanol; water / 5 h / 90 - 95 °C 5: AlCl3, aluminium chloride / dichloromethane / 5.08 h / 0 - 30 °C View Scheme

1: triethylamine / dichloromethane / 2 h / 25 - 30 °C 2: sodium tetrahydroborate / methanol / 0.5 h / 0 - 5 °C 3: hydrogenchloride / methanol; water / 5 h / 90 - 95 °C 4: AlCl3, aluminium chloride / dichloromethane / 5.08 h / 0 - 30 °C View Scheme

1: triethylamine / dichloromethane / 1 h / 0 - 5 °C / |Inert atmosphere 2: AlCl3, aluminium chloride / nitrobenzene / 5 h / 140 °C 3: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 2 h / 25 - 30 °C 4: bromine / dichloromethane / 1 h / 25 - 30 °C 5: AlCl3, aluminium chloride / dichloromethane / 15 - 20 °C 6: triethylamine / dichloromethane / 2 h / 25 - 30 °C 7: sodium tetrahydroborate / methanol / 0.5 h / 0 - 5 °C 8: hydrogenchloride / methanol; water / 5 h / 90 - 95 °C 9: AlCl3, aluminium chloride / dichloromethane / 5.08 h / 0 - 30 °C View Scheme

1.1: AlCl3, aluminium chloride / chlorobenzene / 2 h / 75 °C 1.2: 0.5 h / 5 - 65 °C 2.1: potassium carbonate / butanone / 20 h / 85 °C 2.3: 0.5 h / 25 - 65 °C 3.1: potassium carbonate / toluene; water 4.1: hydrogen / Raney Nickel / methanol / 8 h / 55 °C / 3677.86 Torr 4.2: 0.5 h / 25 - 65 °C 5.1: potassium carbonate / toluene; water / 1 h / 35 °C 6.1: toluene / 3.5 h / 108 °C 6.2: 0.5 h / 60 °C View Scheme

1: With AlCl3, aluminium chloride in chlorobenzene T=85°C; 4 h; 2: With water in chlorobenzene T=35 - 60°C;

1: With AlCl3, aluminium chloride in chlorobenzene T=60°C; 7 h; 2: With water in chlorobenzene T=60°C;

1.1: AlCl3, aluminium chloride / chlorobenzene / 2 h / 75 °C 1.2: 0.5 h / 5 - 65 °C 2.1: potassium carbonate / butanone / 20 h / 85 °C 2.3: 0.5 h / 25 - 65 °C 3.1: potassium carbonate / toluene; water 4.1: hydrogen / Raney Nickel / methanol / 8 h / 55 °C / 3677.86 Torr 4.2: 0.5 h / 25 - 65 °C 5.1: potassium carbonate / toluene; water / 1 h / 35 °C View Scheme

1.1: AlCl3, aluminium chloride / chlorobenzene / 2 h / 75 °C 1.2: 0.5 h / 5 - 65 °C 2.1: potassium carbonate / butanone / 20 h / 85 °C 2.3: 0.5 h / 25 - 65 °C 3.1: potassium carbonate / toluene; water View Scheme