反应条件
1: 81 percent / TiCl4 / benzene; pentane / 1) 1 h, ice-bath, 2) 1.5 h, rt
2: 1) LDA / 1) THF, hexane, 20 min, 0 deg C, 2) 0 deg C, 1 h; then rt, 2 h
3: 90 percent / aq. 2N HCl / CH2Cl2 / 2 h / Heating
View Scheme
参考文献
Kimpe, Norbert De; Coppens, Wim; Welch, John; Corte, Bart De
Synthesis, 1990 , # 8 p. 675 - 677