反应条件
1: 1.) n-BuLi / 1.) hexane, THF, RT, overnight, 2.) THF, reflux, 1 h
2: 89 percent / 85percent phosphoric acid / 2 h / Heating
3: 65 percent / bromine / CH2Cl2 / 0.5 h / 0 °C
View Scheme
参考文献
Kitamura, Tsugio; Kobayashi, Shinjiro; Taniguchi, Hiroshi; Hori, Kenji
Journal of the American Chemical Society, 1991 , vol. 113, # 16 p. 6240 - 6245