N-bromosuccinmide; silver nitrate in acetone T=20°C;

1: tetrahydrofuran / 2.17 h / -10 - 20 °C 2: triethylamine; trichlorophosphate / dichloromethane / 3.33 h / 0 - 20 °C 3: N-bromosuccinmide; silver nitrate / acetone / 1 h / 28 °C View Scheme

1: triethylamine; trichlorophosphate / dichloromethane / 3.33 h / 0 - 20 °C 2: N-bromosuccinmide; silver nitrate / acetone / 1 h / 28 °C View Scheme

2-(dicyclohexylphosphino)-2',4',6'-triisopropylbiphenyl Au bis(trifluoromethylsulfonyl)imide; water in 1,2-dichloro-ethane T=20°C; 14 h;