lithium aluminium tetrahydride in diethyl ether T=0°C; 2 h;

lithium aluminium tetrahydride in diethyl ether T=0°C; 2 h;

in diethyl ether

1H-imidazole in N,N-dimethyl-formamide 6 h; Ambient temperature; Yield given;

1.1: iPr2NH; n-BuLi / tetrahydrofuran; hexane / 1 h / -78 °C 1.2: 93 percent / tetrahydrofuran; hexane / -78 - 20 °C 2.1: 57 percent / n-BuLi / tetrahydrofuran; hexane / 0.75 h / -78 °C View Scheme