反应条件
1.1: phosphorous oxychloride / 2 h / 20 °C
1.2: 73 percent / dimethylformamide / 20 h / 20 °C
2.1: 20 percent / DABCO / benzene / 20 h / Heating
3.1: phosphorous oxychloride / 2 h / 20 °C
3.2: 57 percent / dimethylformamide / 20 h / 20 °C
4.1: 100 percent / trifluoroacetic acid / CH2Cl2 / 1.5 h / 20 °C
View Scheme
参考文献
Feuster, Ellen K.; Glass, Timothy E.
Journal of the American Chemical Society, 2003 , vol. 125, # 52 p. 16174 - 16175