tetrakis(triphenylphosphine) palladium(0); triethylamine in 1,4-dioxane T=80°C; 4 h; Inert atmosphereSchlenk technique;

1: potassium hydroxide / N,N-dimethyl-formamide / 3 h / 20 °C 2: tetrakis(triphenylphosphine) palladium(0); triethylamine / 1,4-dioxane / 4 h / 80 °C / |Inert atmosphere; |Schlenk technique View Scheme

1: iodine; potassium hydroxide / N,N-dimethyl-formamide / 0.75 h / 20 °C 2: potassium hydroxide / N,N-dimethyl-formamide / 3 h / 20 °C 3: tetrakis(triphenylphosphine) palladium(0); triethylamine / 1,4-dioxane / 4 h / 80 °C / |Inert atmosphere; |Schlenk technique View Scheme

1: tetrakis(triphenylphosphine) palladium(0); triethylamine; caesium carbonate / 1,4-dioxane; methanol / 20 h / 100 °C / |Inert atmosphere; |Schlenk technique 2: potassium hydroxide / 1,4-dioxane; methanol / 3 h / 100 °C View Scheme