hydrogenchloride; methanol in water T=0 - 50°C; 6 h; Inert atmosphere;

carbon tetrabromide in methanol 8 h; Reflux;

1: sodium hydride / dichloromethane / 2 h / 0 °C / |Inert atmosphere 2: N-iodo-succinimide / N,N-dimethyl-formamide / 10 h / 70 °C / |Inert atmosphere 3: ethanol; water / 12 h / 0 - 20 °C / |Inert atmosphere 4: caesium carbonate; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / N,N-dimethyl-formamide / 2 h / 70 °C / |Inert atmosphere; |Microwave irradiation 5: hydrogenchloride; methanol / water / 6 h / 0 - 50 °C / |Inert atmosphere View Scheme

1: N-iodo-succinimide / N,N-dimethyl-formamide / 10 h / 70 °C / |Inert atmosphere 2: ethanol; water / 12 h / 0 - 20 °C / |Inert atmosphere 3: caesium carbonate; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / N,N-dimethyl-formamide / 2 h / 70 °C / |Inert atmosphere; |Microwave irradiation 4: hydrogenchloride; methanol / water / 6 h / 0 - 50 °C / |Inert atmosphere View Scheme

1: ethanol; water / 12 h / 0 - 20 °C / |Inert atmosphere 2: caesium carbonate; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / N,N-dimethyl-formamide / 2 h / 70 °C / |Inert atmosphere; |Microwave irradiation 3: hydrogenchloride; methanol / water / 6 h / 0 - 50 °C / |Inert atmosphere View Scheme

1: caesium carbonate; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / N,N-dimethyl-formamide / 2 h / 70 °C / |Inert atmosphere; |Microwave irradiation 2: hydrogenchloride; methanol / water / 6 h / 0 - 50 °C / |Inert atmosphere View Scheme

1: montmorillonite K10 / dichloromethane / 1.5 h / 0 °C 2: hydrogenchloride / methanol; water / 3 h / Reflux View Scheme

1: potassium carbonate / acetone / 24 h / Reflux 2: sodium hydroxide / ethanol / 12 h / 0 - 20 °C 3: montmorillonite K10 / dichloromethane / 1.5 h / 0 °C 4: hydrogenchloride / methanol; water / 3 h / Reflux View Scheme

1: sodium hydroxide / ethanol / 12 h / 0 - 20 °C 2: montmorillonite K10 / dichloromethane / 1.5 h / 0 °C 3: hydrogenchloride / methanol; water / 3 h / Reflux View Scheme

1: sodium hydroxide / ethanol / 12 h / 0 - 20 °C 2: montmorillonite K10 / dichloromethane / 1.5 h / 0 °C 3: hydrogenchloride / methanol; water / 3 h / Reflux View Scheme