1: 2-iodo-2',4',6'-triisopropyl-3,6-dimethoxybiphenyl With tert.-butyl lithium in toluene; pentane T=-78°C; 0.666667 h; Inert atmosphere; 2: chlorodi-1-adamantylphosphine With copper(l) chloride in toluene; pentane T=-78 - 140°C; 24 h; Inert atmosphere;

1.1: magnesium / diethyl ether / 15 h / Inert atmosphere; Reflux 1.2: 4 h / -40 °C / Inert atmosphere; Reflux 2.1: tert.-butyl lithium / toluene; pentane / 0.67 h / -78 °C / Inert atmosphere 2.2: 24 h / -78 - 140 °C / Inert atmosphere View Scheme