反应条件
1: 81 percent / PBr3, Py / diethyl ether / -15 deg C to -10 deg C, 2 h, rt, 2 d 2: 1.) CuI, 2,2'-bipyridyl, Mg, 2.) TsOH / 1.) THF, HF, 20 deg C, 2 h, 20 deg C, 16 h, reflux, 4 h, 2.) EtOH, rt, 24 h 3: 81 percent / Py / 48 h / Ambient temperature View Scheme
参考文献
Odinokov; Vakhidov; Shakhmaev; Zorin
Chemistry of Natural Compounds, 1996 , vol. 32, # 6 p. 912 - 914