1: 1,8-diazabicyclo[5.4.0]undec-7-ene / dichloromethane / 2 h / 0 - 20 °C 2: potassium carbonate / toluene / 1 h / 180 °C / Microwave irradiation; Passive heating element; Inert atmosphere View Scheme

1: 1,8-diazabicyclo[5.4.0]undec-7-ene / dichloromethane / 2 h / 0 - 20 °C 2: potassium carbonate / toluene / 1 h / 180 °C / Microwave irradiation; Passive heating element; Inert atmosphere 3: RuCl2(tricyclohexylphosphine)2(benzylidene) / toluene / 0.25 h / 60 °C / Microwave irradiation; Passive heating element; Inert atmosphere View Scheme