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

N-bromosuccinmide; hexafluoroisopropyl alcohol in dichloromethane 0.166667 h;