1: 70 percent / tetrabutylammonium fluoride / tetrahydrofuran / 21 h / Ambient temperature 2: 90 percent / H2, quinoline / Lindlar catalyst / methanol; hexane / 0.33 h 3: acetone-d6 / 80.3 °C / var. temp.; kinetics, E(a), ΔG(excit.), ΔH(excit.), ΔS(excit.) View Scheme