反应条件
1: 15 percent / Et3N / acetonitrile / RT, 2 h, then reflux, 10 h 2: 60 percent / nitromethane / 12 h / 60 - 70 °C 3: 40 percent / acetonitrile / RT, 2 h, then reflux, 8 h 4: HCl gas / diethyl ether / 0.17 h 5: 80 percent / acetonitrile / RT, 2 h, then reflux, 4 h View Scheme
参考文献
Tetrahedron, , vol. 42, # 5 p. 1449 - 1460
