in tetrahydrofuran

1: n-butyllithium 2: methanol / Acidic conditions 3: tetrahydrofuran View Scheme

1: hydrogenchloride / water / 20 °C 2: n-butyllithium 3: methanol / Acidic conditions 4: tetrahydrofuran View Scheme

1: C15H17ClOSi With n-butyllithium in tetrahydrofuran; hexane T=0°C; 0.5 h; Inert atmosphere; 2: 3-chloro-2-methyl-propene With copper(l) iodide; triethyl phosphite in N,N-dimethyl-formamide T=50°C; 16 h; Inert atmosphere;

copper(l) iodide; biphenyl-2-yl-di-tert-butyl-phosphane; lithium tert-butylate in 1,4-dioxane T=20°C; 4 h; Inert atmosphereSchlenk technique;