1: (2-Methoxymethoxy-phenyl)-trimethyl-silane With n-butyllithium in tetrahydrofuran; hexane T=0°C; 2 h; 2: N,N-dimethyl-formamide in tetrahydrofuran; hexane T=-78 - 20°C;

1.1: N,N,N',N'-tetramethylethylenediamine; n-BuLi / hexane; diethyl ether / 1 h / 0 °C 1.2: hexane; diethyl ether / 0.5 h / 0 °C 2.1: N,N,N',N'-tetramethylethylenediamine; n-BuLi / hexane; diethyl ether / 1 h / 0 °C 2.2: 1.1 g / hexane; diethyl ether / 0.25 h / -78 °C View Scheme

1.1: NaH / tetrahydrofuran; various solvent(s) / 0 °C 2.1: N,N,N',N'-tetramethylethylenediamine; n-BuLi / hexane; diethyl ether / 1 h / 0 °C 2.2: hexane; diethyl ether / 0.5 h / 0 °C 3.1: N,N,N',N'-tetramethylethylenediamine; n-BuLi / hexane; diethyl ether / 1 h / 0 °C 3.2: 1.1 g / hexane; diethyl ether / 0.25 h / -78 °C View Scheme

hydrogenchloride; sodium iodide in water; acetone T=55°C; 0.75 h;