反应条件
1: 71 percent / anodic oxidation in tetraethylammonium p-toluenesulfonate 2: 86 percent / NH4Cl / 5 h / 50 Torr / Heating 3: 1.) POCl3, 2.) AcONa / 1.) ethylene dichloride, 0-5 deg C, 2.5 h -> room temperature, 2.) H2O, reflux, 15 min 4: 1.) Et3N / 2.) palladium-on-carbon / 1.) methanol, reflux, 4 h, 2.) xylene, reflux, 3 h View Scheme
参考文献
Shono, Tatsuya; Matsumura, Yoshihiro; Tsubata, Kenji; Sugihara, Yoshihiro; Yamane, Shin-ichiro; et. al.
Journal of the American Chemical Society, 1982 , vol. 104, # 24 p. 6697 - 6703