1: 99 percent / K2CO3 / dimethylformamide / 20 °C 2: 98 percent / 2,6-lutidine / CH2Cl2 / 20 °C 3: 98 percent / Cl2(PCy3)2RuCHPh; ethylene; Pb(OAc)4 / CH2Cl2 / 14 h / 20 °C 4: tetrahydrofuran / 8 h / 0 - 55 °C 5: 2.19 g / aq. NaOH; aq. H2O2 / ethanol / 1 h / Heating 6: K2HPO4*3H2O; Na/Hg / methanol / 2 h / Heating 7: 2.35 g / aq. NaOH / CH2Cl2 / 1 h 8: 98 percent / Et3N / CH2Cl2 / 2 h / 0 - 20 °C 9: 95 percent / Pd(OAc)2; polymer-bound triphenylphosphine; Et3N / dimedone / tetrahydrofuran / 6 h / 20 - 50 °C 10: AD-mix-α; MeSO2NH2; H2O / 2-methyl-propan-2-ol / 168000 h / 3 - 6 °C 11: TBAF / tetrahydrofuran / 24 h / 20 °C 12: 291 mg / DMAP / CH2Cl2 / 20 °C 13: 96 percent / Amberlite IRA-401(OH) / methanol / 2 h / 20 °C View Scheme