反应条件
1: 59 percent / tetrahydrofuran / 1 h / 5 - 10 °C
2: 60 percent / acetic anhydride, cc. H2SO4 / 4 h / Heating
3: 1.) magnesium, 1,2-dibromoethane, iodine; 2.) NiCl2 / 1.) THF, 100-110 deg C, 2 h; 2.) THF, r.t., 4.5 h
4: 90 percent / NaOH / ethanol; H2O / 6 h / Ambient temperature
View Scheme
参考文献
Amano; Yoshikawa; Ogawa; Sano; Ohuchi; Tanami; Ota; Hatayama; Higuchi; Amanuma
Chemical and Pharmaceutical Bulletin, 1986 , vol. 34, # 11 p. 4653 - 4662
