反应条件
1: 85 percent / pyridine, thionylchloride / diethyl ether / 3 h / Ambient temperature
2: 82 percent
3: 49 percent / 10 percent sodium methanolate / methanol / 0.5 h / Ambient temperature
4: 78 percent / triethylphosphite / 20 h / Heating
View Scheme
