sulfuric acid 24 h; Heating;

1: 90 percent / NaHCO3 / Pd(0) / 1,2-dimethoxy-ethane; H2O / 4 h / Heating 2: 93 percent / 20percent H2SO4 / 24 h / Heating View Scheme

1: 90 percent / NaHCO3 / Pd(0) / 1,2-dimethoxy-ethane; H2O / 4 h / Heating 2: 93 percent / 20percent H2SO4 / 24 h / Heating View Scheme

potassium hydroxide; tetrakis(triphenylphosphine) palladium(0); tetrabutylammomium bromide in tetrahydrofuran 8 h; Heating;

Ba(OH)2·8H2O in 1,4-dioxane; water T=100°C; Suzuki coupling; 4 h; Inert atmosphere;

1: palladium diacetate; triethylamine; 2-dicyclohexylphosphino-1,1'-biphenyl / 1,4-dioxane / 1 h / 80 °C / Inert atmosphere 2: Ba(OH)2·8H2O / 1,4-dioxane; water / 4 h / 100 °C / Inert atmosphere View Scheme

1.1: acetic acid; sodium nitrite / water / 1.5 h / 0 °C / Inert atmosphere 1.2: 0.5 h / 20 °C / Inert atmosphere 2.1: dichloromethane / 20 °C / Inert atmosphere 3.1: Rh2(esp)2 / 1,2-dichloro-ethane / 15 h / 80 °C / Inert atmosphere; Molecular sieve 4.1: sodium carbonate / chloroform; water / Inert atmosphere View Scheme

1: 1.) cc.HCl, NaNO2; 2.) NaN3 / 1.) 0 deg C, 1 h; 2.) 0 deg C, 1 h 2: 75 percent / o-dichlorobenzene / 5 h / 180 °C View Scheme