反应条件
n-butyllithium; ethylmagnesium bromide 1.) THF, hexane, -40 to -15 deg C, 4 min then -30 deg C, 15 min, 2.) THF, hexane, -30 to -5 deg C, 15 min then -5 deg C, 30 min then 40 deg C, 1 h, 3.) THF, hexane, 0 deg C, 15 min then 40 deg C, 2 h; Yield given. Multistep reaction;
参考文献
Bock,H.; Seidl,H.
Journal of the Chemical Society [Section] B: Physical Organic, 1968 , p. 1158 - 1163