反应条件
1: P2O5 / ethanol 2: 2.) conc. HCl, 3.) HCl-gas / 1.) THF, toluene, 65 deg C, 2 h, 2.) 1 h, 3.) 75 deg C, 1.5 h, ethanol View Scheme
参考文献
Jalander, Lars; Oksanen, Lasse; Taehtinen, Johanna
Synthetic Communications, 1989 , vol. 19, # 19 p. 3349 - 3352
