反应条件
1: 50 percent / benzene / 4 h / Heating 2: NaH / 1.) benzene, RT, 1 h, 2.) benzene, RT, 4 h 3: 80 percent / potassium carbonate / ethanol / 22 h / 45 °C 4: 85 percent / dimethylformamide / 22 h / 65 °C 5: 100 percent / aluminum hydride / tetrahydrofuran / 2.5 h / 0 °C 6: 90 percent / CBr4, ethylenebis(diphenylphosphine) / CH2Cl2 / 2.5 h / -35 °C 7: 153 mg / acetonitrile / 1.5 h / 20 °C 8: 1.) n-BuLi, 2.) HMPA / 1.) THF, hexane, -100 deg C, 2 min, 2.) THF, hexane, from -100 deg C to RT 9: 61 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 15 h / Ambient temperature 10: potassium carbonate / methanol; H2O / 7.5 h / Ambient temperature 11: AcOH / H2O View Scheme
参考文献
Journal of Organic Chemistry, , vol. 54, # 10 p. 2409 - 2416
