sulfuric acid; nitric acid in acetic anhydride
T=20°C; 192 h;
参考文献
Sokolov,S.D. et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1974 , vol. 10, p. 516 - 520
Khimiya Geterotsiklicheskikh Soedinenii, 1974 , vol. 10, p. 597 - 601