反应条件
1: 1.) BF3*Et2O, 2.) pyridine, POCl3 / 1.) a) 60 deg C, 2 h, b) 90 deg C, 2 h, 2.) heating 2: sulfur, 5percent Pd/C / 2 h / 190 - 200 °C 3: 75 percent / NaCN / dimethylsulfoxide / 12 h / 160 - 170 °C View Scheme
参考文献
Tolbert, Laren M.; Haubrich, Jeanne E.
Journal of the American Chemical Society, 1994 , vol. 116, # 23 p. 10593 - 10600