1: 90 percent / tetrahydrofuran / 2 h / sonication 2: 97 percent / hydrogen / Pd-CaCO3 / ethanol / 24 h / 20 °C 3: 85 percent / PCC; silica gel / CH2Cl2 / 30 h / 20 °C 4: 75 percent / sodium borohydride / methanol / 1.5 h / cooling 5: 28 percent / propionic acid / 48 h / 180 °C 6: 80 percent / Cl2(PCy3)2Ru=CHPh / CH2Cl2 / 6 h / 20 °C 7: 99 percent / hydrogen / Pd on activated C / ethanol / 3 h / 20 °C / 760 Torr 8: 98 percent / LiAlH4 / diethyl ether / 1 h / 0 °C 9: 89 percent / PCC; silica gel / CH2Cl2 / 0.5 h / 20 °C 10: 77 percent Turnov. / (Ph3P)3RhCl / benzene / 20 h / 120 - 130 °C View Scheme