反应条件
1.1: bromine; acetic acid / 16 h / 0 - 20 °C / Inert atmosphere
2.1: toluene-4-sulfonic acid / toluene / 24 h / Reflux; Inert atmosphere
3.1: tetrahydrofuran / 0.33 h / -78 °C / Inert atmosphere
3.2: -78 - 0 °C / Inert atmosphere
3.3: 20 °C / Inert atmosphere; Saturated solution
4.1: FeCl3·6H2O / acetone / 1.67 h / Inert atmosphere
View Scheme
参考文献
Sanchez-Larios, Eduardo; Holmes, Janice M.; Daschner, Crystal L.; Gravel, Michel
Organic Letters, 2010 , vol. 12, # 24 p. 5772 - 5775