1,4-diaza-bicyclo[2.2.2]octane; n-butyllithium in tetrahydrofuran T=-78°C;

1,4-diaza-bicyclo[2.2.2]octane; n-butyllithium 1.) hexane, THF, -78 deg C, 23 min; 2.) -78 deg C, 5 min, from -78 deg C to room temperature, 15 min; Yield given. Multistep reaction;