1: PPh3 gold(I) chloro complex; silver hexafluoroantimonate / dichloromethane / 2 h / 20 °C / Inert atmosphere 2: N-bromosuccinmide; hexafluoroisopropyl alcohol / dichloromethane / 0.17 h 3: Ba(OH)2·8H2O; palladium diacetate; tris-(o-tolyl)phosphine / ethylene glycol dimethyl ether; water / 3 h / 50 °C / Inert atmosphere View Scheme

1: PPh3 gold(I) chloro complex; silver hexafluoroantimonate / dichloromethane / 2 h / 20 °C / Inert atmosphere 2: N-bromosuccinmide; hexafluoroisopropyl alcohol / dichloromethane / 0.17 h View Scheme