反应条件
1: 53 percent / NaH / dimethylformamide / 1.) 0 deg C, 10 min, 2.) RT, 1.75 h 2: 1.) LDA / 1.) THF, hexane, -78 deg C, 1.5 h, 2.) THF, hexane, a) -78 deg C, 15 min, b) from -78 deg C to RT, 2h, c) RT, overnight 3: 1.) n-BuLi, 2.) Mg, 1,2-dibromoethane 4: 40 percent / acetonitrile / 2.75 h / Irradiation View Scheme
参考文献
Johnson, A. Peter; Dutton, Jonathan K.; Pleynet, David P. M.
Heterocycles, 1994 , vol. 37, # 3 p. 1913 - 1932
