反应条件
1: 91 percent / PBr3, pyridine / diethyl ether / 6 h / -5 °C 2: 78 percent / dimethylformamide / 24 h / Ambient temperature 3: 1.) n-BuLi, 3.) H2O, KOH 4: 63 percent / Li, ethylamine / diethyl ether / 1 h / -78 °C 5: 1.) PBr3, pyridine / 1.) ether, 2.) DMF, ambient temperature 6: 1.) n-BuLi, 3.) H2O, KOH 7: 70 percent / Li, ethylamine / diethyl ether 8: 1.) n-BuLi / 1.) THF, HMPA, 2.) -78 deg C 9: 50 percent / Li, ethylamine / diethyl ether / -78 °C View Scheme
参考文献
Sato, Kikumasa; Inoue, Seiichi; Onishi, Akira; Uchida, Nobuhiko; Minowa, Nobuto
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1981 , p. 761 - 769
