1: 25 percent / K2CO3 / acetone / 2 h / 60 °C 2: 100 percent / [RuClH(CO)(PPh3)3] / CH2Cl2 / 14 h / 65 °C 3: 20 percent / ((Mes)2C3H5N2)Cl2Ru=CHPh / toluene / 3 h / 90 °C View Scheme

1.1: potassium carbonate / acetone / 0.5 h 1.2: 4 h / 20 °C 2.1: n-butyllithium; tri-isopropoxy-borane / tetrahydrofuran; hexane / 2 h / -78 - 20 °C 2.2: 0.5 h / 20 °C 3.1: palladium diacetate; potassium carbonate; dicyclohexyl(2',6'-diisopropoxy-[1,1'-biphenyl]-2-yl)phosphine / ethylene glycol dimethyl ether; water / 0.17 h / 130 °C / Microwave irradiation View Scheme

1: m-chloroperbenzoic acid / CH2Cl2 / 24 h / 10 - 20 °C 2: Kieselgel 60 / CH2Cl2 / 24 h / Ambient temperature 3: Jones' reagent / acetone / 48 h / Ambient temperature View Scheme

copper diacetate; lithium chloride; palladium dichloride in N,N-dimethyl-formamide T=25°C; 0.5 h;