反应条件
1: 1.)LDA, ZnBr2 / 1.)THF, -78 deg C, 60 min; 2.)THF, -15 deg C, 24 h 2: 92 percent / LiBr, DBU / tetrahydrofuran / 4 h / Ambient temperature View Scheme
参考文献
Gibson, Colin L.; Gillon, Karen; Cook, Stuart
Tetrahedron Letters, 1998 , vol. 39, # 37 p. 6733 - 6736
