反应条件
1: 82 percent / TiCl4 / pentane / 72 h / 0 - 20 °C 2: 2.) aq. AcOH / 1.) THF, room temperature, 2.) 0.5 h 3: 51 percent / MeONa / methanol / 6 h / Ambient temperature View Scheme
参考文献
Rieck, Angela; Buelow, Nils; Koenig, Wilfried A.
Phytochemistry (Elsevier), 1995 , vol. 40, # 3 p. 847 - 852
