反应条件
1: diethyl ether / 4 h / Ambient temperature
2: 1.) sec-BuLi, TMEDA, trimethylborate; 2.) Br2 / 1.) THF, -78 deg C, 20 min; -78 deg C to 0 deg C, 1 h; 2.) THF, 0.5 h, RT
View Scheme
参考文献
Beak,P.; Kempf,D.J.; Wilson,K.D.
Journal of the American Chemical Society, 1985 , vol. 107, p. 4745