1: 1.96 g / n-butyl lithium, boron trifluoride etherate / hexane; tetrahydrofuran / 0.5 h / -78 °C 2: 0.75 g / hydrogen, quinoline / Pd-CaCO3 / hexane 3: triethylamine / CH2Cl2 4: 0.9 g / NaI / acetone / 3 h View Scheme

1: 0.75 g / hydrogen, quinoline / Pd-CaCO3 / hexane 2: triethylamine / CH2Cl2 3: 0.9 g / NaI / acetone / 3 h View Scheme