sulfuric acid
T=20°C; 18 h; Title compound not separated from byproducts;
参考文献
Koren', A. O.; Gaponik, P. N.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1991 , vol. 27, # 9 p. 1035
Khimiya Geterotsiklicheskikh Soedinenii, 1991 , # 9 p. 1280