反应条件
1: 63 percent / Ti(OMe)4, TiCl4 / CH2Cl2 / 10 h / -40 °C 2: MeONa / methanol / 0.17 h / Ambient temperature 3: CDCl3; methanol 4: 1) BuLi, HMPT / 1) THF, hexane, -78 deg C, 10 min.; 2) THF, a) -78 deg C, 3 h, b) -30 deg C, 20 h 5: 90 percent / MeONa / methanol; tetrahydrofuran / 240 h / Ambient temperature View Scheme
参考文献
Bulletin de la Societe Chimique de France, , vol. 130, # 2 p. 200 - 205
