1: ethyl α-phenylhexanoate With lithium diisopropyl amide in tetrahydrofuran T=45°C; 1 h; Inert atmosphereCooling with ice; 2: 1-bromo-butane T=0 - 20°C;

1.1: lithium diisopropyl amide / tetrahydrofuran / 1 h / 45 °C / |Inert atmosphere; |Cooling with ice 1.2: 0 - 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran / 1 h / 45 °C / |Inert atmosphere; |Cooling with ice 2.2: 0 - 20 °C View Scheme

aluminum oxide 1.) hexane, RT, 3 h, 2.) hexane, RT, 3 h; Yield given. Multistep reaction. Yields of byproduct given;

(i) potassium graphite, THF, (ii) /BRN= 1098260/; Multistep reaction;