反应条件
1: 8 percent / ZnCl2 / ethyl acetate / 12 h / 0 °C 2: 1) BuLi, HMPT / 1) THF, hexane, -78 deg C, 30 min.; 2) THF, a) -78 deg C, 1 h, b) 0 deg C, 14 h, c) room temperature, 1 h 3: 95 percent / chromatography, hydrolysis 4: 77 percent / MeONa / methanol / 12 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
