反应条件
1: 1) 20percent aq. NaOH, 2) conc. HCl / 1) heating, 2 h, 2) heating 2: 50 percent / POCl3 / 3 h / Heating View Scheme
参考文献
Barker, John M.; Huddleston, Patrick R.; Chadwick, Nigel; Keenan, Guy J.
Journal of Chemical Research, Miniprint, 1980 , # 1 p. 113 - 126