反应条件
1: 95 percent / Pd(PPh3)4 / tetrahydrofuran / 10 h / Heating 2: 85 percent / Br2, NaOMe / CH2Cl2; methanol / 2 h / -78 - 20 °C 3: 84 percent / Pd(PPh3)4 / tetrahydrofuran / 12 h / Heating 4: 93 percent / NaH, C2H5SH / dimethylformamide / 10 h / Heating 5: 60 percent / NaOEt / ethanol / 24 h / Heating View Scheme
参考文献
Journal of Organic Chemistry, , vol. 50, # 12 p. 2121 - 2123