BCl3*Me2S in dichloromethane; 1,2-dichloro-ethane 18 h; Reflux;

diethylaluminium chloride in hexane T=20°C; 2 h; Inert atmosphere;

1.1: boron tribromide / dichloromethane / -78 °C 2.1: potassium hydroxide 2.2: Microwave irradiation View Scheme

1: diethyl ether / 36 h / Ambient temperature 2: 2 mg / CF3COOH / benzene / 10 h / Ambient temperature View Scheme

1: Honokiol With potassium carbonate in N,N-dimethyl-formamide T=20 - 25°C; Williamson synthesis; 2: methyl iodide in N,N-dimethyl-formamide T=30°C; Williamson synthesis; 6 h;

1.1: osmium(VIII) oxide; 4-methylmorpholine N-oxide / water; acetone; tert-butyl alcohol / 24 h / 20 °C / Inert atmosphere 2.1: dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II) dichloromethane adduct; sodium carbonate / ethylene glycol dimethyl ether; water / 18 h / 80 °C / Inert atmosphere 3.1: triethylamine / dichloromethane / 0.5 h / Inert atmosphere; Cooling with ice 3.2: 2.08 h / 20 °C / Inert atmosphere 3.3: 18 h / 140 °C / Inert atmosphere 4.1: sodium iodide; zinc / N,N-dimethyl-formamide / 18 h / 140 °C / Inert atmosphere 5.1: potassium carbonate / acetone / 20 °C / Inert atmosphere 6.1: diethylaluminium chloride / hexane / 2 h / 20 °C / Inert atmosphere View Scheme

1: potassium carbonate / acetone / 20 °C / Inert atmosphere 2: diethylaluminium chloride / hexane / 2 h / 20 °C / Inert atmosphere View Scheme

1.1: dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II) dichloromethane adduct; sodium carbonate / ethylene glycol dimethyl ether; water / 18 h / 80 °C / Inert atmosphere 2.1: triethylamine / dichloromethane / 0.5 h / Inert atmosphere; Cooling with ice 2.2: 2.08 h / 20 °C / Inert atmosphere 2.3: 18 h / 140 °C / Inert atmosphere 3.1: sodium iodide; zinc / N,N-dimethyl-formamide / 18 h / 140 °C / Inert atmosphere 4.1: potassium carbonate / acetone / 20 °C / Inert atmosphere 5.1: diethylaluminium chloride / hexane / 2 h / 20 °C / Inert atmosphere View Scheme

1.1: triethylamine / dichloromethane / 0.5 h / Inert atmosphere; Cooling with ice 1.2: 2.08 h / 20 °C / Inert atmosphere 1.3: 18 h / 140 °C / Inert atmosphere 2.1: sodium iodide; zinc / N,N-dimethyl-formamide / 18 h / 140 °C / Inert atmosphere 3.1: potassium carbonate / acetone / 20 °C / Inert atmosphere 4.1: diethylaluminium chloride / hexane / 2 h / 20 °C / Inert atmosphere View Scheme

in methanol