反应条件
1: 1.) 48 percent HBr, Br2; 2.) NaNO2 / 1) 30-40 deg C; 2) -5 deg C, H2O; 10-15 Deg C, 90 min.; 3) 40 deg C. 15 min 2: dimethylsulfoxide / 0.08 h / 180 °C 3: 54 percent / HCl / 1.5 h / Heating 4: 70 percent / H2S, 25 percent NH3 5: 1) 24 percent HBr, NaNO2, urea; 2) CuBr, 48 percent HBr, H2S / 1) H2O, 0 deg C, 5 min; 0 deg C, 10 min; 2) 0 deg C, 10 min; reflux View Scheme
参考文献
Pharmazie, , vol. 38, # 9 p. 591 - 596
