反应条件
N,N,N',N,-tetramethylethylenediamine; sec.-butyllithium; ethylene dibromide 1.) cyclohexane, ether, -78 deg C, 1 h, 2.) cyclohexane, ether, a) -78 deg C, 30 min, b) 1 h; Yield given. Multistep reaction;
参考文献
Meyers; Hutchings
Tetrahedron Letters, 1993 , vol. 34, # 39 p. 6185 - 6188
