反应条件
1: 1.) ethylmagnesium bromide / 1.) THF, 0 deg C, 30 min; 2.) THF, 20 min, 0 deg C then 2 h, 20 deg C
2: 74 percent / pyridine / 1.) 2.5 h, 20 deg C; 2.) 6 h, 60 deg C
3: 53 percent / (CH3)2CuLi / diethyl ether / 5.5 h / -70 °C
4: 100 percent / p-toluenesulfonic acid / methanol / 3 h / 55 °C
5: 95 percent / AgNO3 (1.2 equiv.) / acetone; H2O / 24 h / 20 °C / exclusion of light
View Scheme
参考文献
Audin, Patrick; Doutheau, Alain; Gore, Jacques
Bulletin de la Societe Chimique de France, 1984 , vol. 2, # 7-8 p. 297 - 306
