反应条件
1: 79 percent / unfused ZnCl2 with 5percent water, POCl3 / 5 h / 50 °C 2: 80 percent / K2CO3, KI / dimethylformamide / 2 h / 80 °C 3: 88 percent / K2CO3 / dimethylformamide / 15 h / 80 °C 4: 1.) NaBH4; 2.) 4 M HCl / 1.) methanol, 25 deg C, 2 h; 2.) THF, 25 deg C, 1.5 h View Scheme
参考文献
Timar, Tibor; Jaszberenyi, J. Csaba
Journal of Heterocyclic Chemistry, 1988 , vol. 25, p. 871 - 877
