1: BuLi / tetrahydrofuran; hexane / -78 °C
2: 1.) t-BuLi, ZnCl2 / 2.) Pd(PPh3)4 / 1.) pentane, -70 deg C, 1.5 h; -70 deg C to r.t., 2 h, 2.) THF, reflux, 18 h
View Scheme
参考文献
Sakamoto, Takao; Kondo, Yoshinori; Takazawa, Nobuo; Yamanaka, Hiroshi
Journal of the Chemical Society - Perkin Transactions 1, 1996 , # 16 p. 1927 - 1934