1: With ammonium chloride in methanol; water 1 h; Reflux; 2: With phosphoric acid in methanol; water 4 h; Reflux; 3: With potassium hydroxide in methanol; water pH=9;
参考文献
Schulz, Tobias; Ahrens, Sebastian; Meyer, Dirk; Allolio, Christoph; Peritz, Anke; Strassner, Thomas
Chemistry - An Asian Journal, 2011 , vol. 6, # 3 p. 863 - 867
