1.1: triethylamine; titanium tetrachloride / dichloromethane / 0.5 h / |Inert atmosphere; |Cooling with ice 1.2: 5 h / 20 - 40 °C / |Inert atmosphere 2.1: trichlorosilane; N,N-dimethyl-formamide / dichloromethane / -10 °C View Scheme

ammonia; water T=175°C;

T=200°C;