反应条件
1: 1) NaH / 1) THF, 30 min, r.t., 2) THF, 12 h, r.t. 2: 1) sec-BuLi / 1) cyclohexane, THF, -105 deg C, 1 h, 2) THF, -105 deg C, 1 h 3: 54 percent / 90percent formic acid / 1 h / Heating View Scheme
参考文献
Watanabe; Date; Kawanishi; Akiyoshi; Furukawa
Journal of Heterocyclic Chemistry, 1991 , vol. 28, # 1 p. 173 - 176