反应条件
1: 87 percent / TiCl4, Ti(OiPr)4 / CH2Cl2 / 4 h / -78 °C
2: 94 percent / p-toluenesulphonic acid / benzene / Heating
3: 86 percent / CuI / diethyl ether / 1 h / Ambient temperature
4: 69 percent / Br2 / acetic acid / 30 h / Ambient temperature; 1) 1 h, 0 deg C, 2) r.t., 30 min
5: 78 percent / CaCO3 / dimethylformamide / Heating
View Scheme
参考文献
Hagenbruch, Bernd; Huenig, Siegfried
Chemische Berichte, 1983 , vol. 116, # 12 p. 3884 - 3894
