1.1: 1 h / 190 °C / |Microwave irradiation 2.1: triethylamine / dichloromethane / 0.5 h / -20 °C 3.1: 9-bora-bicyclo[3.3.1]nonane / tetrahydrofuran / 2 h / 0 - 20 °C 3.2: 20 h / 0 - 20 °C 4.1: triethylamine / dichloromethane / 24 h / 20 °C 5.1: hydrogenchloride / water; ethanol / 18 h / 80 °C 6.1: bis(dibenzylideneacetone)-palladium(0); sodium carbonate; tri-cyclo-hexyl-phosphine; Aliquatreg; 336 / water; ethylene glycol dimethyl ether / 0.5 h / 130 °C / |Microwave irradiation; |Inert atmosphere View Scheme

1.1: 1 h / 190 °C / |Microwave irradiation 2.1: triethylamine / dichloromethane / 0.5 h / -20 °C 3.1: 9-bora-bicyclo[3.3.1]nonane / tetrahydrofuran / 2 h / 0 - 20 °C 3.2: 20 h / 0 - 20 °C 4.1: triethylamine / dichloromethane / 24 h / 20 °C 5.1: hydrogenchloride / water; ethanol / 18 h / 80 °C 6.1: sodium carbonate; palladium diacetate; triphenylphosphine / water; ethylene glycol dimethyl ether / 24 h / 100 °C View Scheme