反应条件
1: 70 percent / pyridine; CH2Cl2 / 4 h / Temperature: from -20 deg C to 0 deg C
2: 97 percent / hexamethylphosphoric acid triamide; dimethylformamide / 20 h / Ambient temperature
3: 1.) NH3, 2.) aq. acetic acid / 1.) methanol, room temp., 2.) room temp.
View Scheme
参考文献
Mao, David T.; Marquez, Victor E.
Tetrahedron Letters, 1984 , vol. 25, # 20 p. 2111 - 2114
