1.1: 97 percent / Cl2(Cy3P2)Ru=CHPh / CH2Cl2 / 2 h / 20 °C 2.1: 45 percent / Na2EDTA; CF3COCH3; NaHCO3 / Oxone / acetonitrile / 1.5 h / 0 °C 3.1: 78 percent / Super-Hydride / tetrahydrofuran / 3 h / 0 °C 4.1: HCl / methanol; H2O / 2 h / 60 °C 4.2: 83 percent / DOWEX-50wX8 View Scheme

1.1: 97 percent / Cl2(Cy3P2)Ru=CHPh / CH2Cl2 / 2 h / 20 °C 2.1: 45 percent / Na2EDTA; CF3COCH3; NaHCO3 / Oxone / acetonitrile / 1.5 h / 0 °C 3.1: KOH / dioxane; H2O / Heating 3.2: HCl / H2O; methanol / 1 h / 60 °C 3.3: 33 percent / DOWEX-1X2 (OH(1-) form) / H2O View Scheme