反应条件
1: 76 percent / 4-(N,N-dimethylamino)pyridine, N,N'-dicyclohexylcarbodiimide / CHCl3 / 0.25 h / Ambient temperature
2: 85 percent / 20 percent H2SO4, silica gel (Merck 60, 70-230 mesh) / CH2Cl2 / 6 h / Ambient temperature
3: 2.) conc. H2SO4 / 1.) irradiation, hexane, 6 h, r. t., 2.) acetic acid, reflux, 30 min
View Scheme
参考文献
Tamura, Kazushige; Ishihara, Takashi; Yamanaka, Hiroki
Journal of Fluorine Chemistry, 1994 , vol. 68, # 1 p. 25 - 32