反应条件
1: SOCl2 / toluene / 1.) 70 deg C, 1 h; 2.) reflux, 4 h 2: NH3(g) / toluene / below 30 deg C 3: 93 percent / NaOH, Br2 / H2O / 1.) 5 deg C; 2.) 75 deg C, 90 min View Scheme
参考文献
Zhang; Stout; Keay; Scriven; Toomey; Goe
Tetrahedron, 1995 , vol. 51, # 48 p. 13177 - 13184