1: 84 percent / n-BuLi / diethyl ether; hexane / 1.) -78 deg C, 10 min, 2.) 1 h 2: 84 percent / diethylamine, CuI, bis<triphenylphosphine>palladium(II) acetate / dimethylformamide / 1.5 h / Ambient temperature 3: 70 percent / tetrabutylammonium fluoride / tetrahydrofuran / 21 h / Ambient temperature 4: 90 percent / H2, quinoline / Lindlar catalyst / methanol; hexane / 0.33 h 5: acetone-d6 / 80.3 °C / var. temp.; kinetics, E(a), ΔG(excit.), ΔH(excit.), ΔS(excit.) View Scheme