反应条件
1: 82 percent / Ethyl orthoformate, p-toluenesulfonic acid / benzene / 3 h / Heating
2: n-BuLi, HMPTA / tetrahydrofuran / 3 h / -78 °C
3: p-Toluenesulfonic acid / acetone
View Scheme
参考文献
Mussatto, Maria Cristina; Savoia, Diego; Trombini, Claudio; Umani-Ronchi, Achille
Journal of Organic Chemistry, 1980 , vol. 45, # 20 p. 4002 - 4005
