1: n-butyllithium 2: anhydrous iron chloride / 1,2-dichloro-ethane / 1 h / 80 °C / |Inert atmosphere View Scheme

[MeCNAu((1,1′-biphenyl-2-yl)-di-tert-butylphosphine)]+SbF6− in dichloromethane T=18 - 40°C; Inert atmosphere;

1: copper(l) iodide / N,N-dimethyl-formamide / 4 h / 25 °C / |Inert atmosphere 2: trifluorormethanesulfonic acid / dichloromethane / 0.08 h / 20 °C 3: [1,3-bis(diphenylphosphino) propane] dichloronickel(II) / tetrahydrofuran / 1 h / 20 - 70 °C View Scheme