反应条件
1: 94 percent / tert-BuOK / 42 h / 50 - 60 °C 2: 1) Ac2O, conc. H2SO4, 2) aq. NaOH / 1) 100-120 deg C, 5 h, 2) MeOH, rt, 3 h 3: 1) SOCl2, 2) MeONa / 1) CHCl3, reflux, 20 min, 2) MeOH, reflux, 1 h 4: 45 percent / m-chloroperbenzoic acid / CHCl3 / ice-cooling View Scheme
参考文献
Chemical and Pharmaceutical Bulletin, , vol. 38, # 10 p. 2853 - 2858