反应条件
1: 1.) n-BuLi / 1.) THF, hexane, -23 deg C, 30 min, 2.) 6 deg C, 17 h
2: 1.) n-BuLi, 2.) HMPA / 1.) THF, hexane, 15 min, 2.) -78 deg C, 4 h
3: 92 percent / NaI / butan-2-one / 46 h / 4 °C
4: 1.) n-BuLi / 1.) THF, hexane, -23 deg C, 20 min, 2.) -23 deg C, 30 min
5: sec-BuLi, TMEDA / tetrahydrofuran; cyclohexane / 0.5 h / -78 °C / single and double ring-closure reactions of dianions of bis(diphenyl thioacetals), carbene generation and intramolecular capture, mechanistic study
View Scheme
参考文献
Cohen,T.; Ritter,R.H.; Oulette,D.
Journal of the American Chemical Society, 1982 , vol. 104, p. 7142
