反应条件
1: 1.) sec-BuLi, Tetramethylethylenediamine / 1.) THF, a) 1 h, -78 deg C, b) 1 h, to 40 deg C, 2.) THF, a) 0,5 h, -78 eg C, b) 2 h, to 0 deg C 2: 78 percent / 10percent HBF4 / tetrahydrofuran / Ambient temperature 3: 60 percent / Dimethyl(methylthio)sulfonium fluoroborate / acetonitrile / 20 h / Ambient temperature View Scheme
参考文献
Dieter; Lin
Journal of Organic Chemistry, 1984 , vol. 49, # 17 p. 3183 - 3195
