反应条件
1: pyridine 2: boron trifluoride diethyl etherate / dichloromethane / 1 h / |Reflux 3: sodium methylate / methanol / 3 h / 20 °C 4: toluene-4-sulfonic acid / N,N-dimethyl-formamide / 1.5 h / 70 °C View Scheme
参考文献
Gu, Guofeng; Adabala, Pal John Pal; Szczepina, Monica G.; Borrelli, Silvia; Pinto, B. Mario
Journal of Organic Chemistry, 2013 , vol. 78, # 16 p. 8004 - 8019