perchloric acid in trifluoroacetic acid; benzene
T=20°C; 216 h;
参考文献
Kharchenko, V. G.; Drevko, B. I.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 12 p. 1345 - 1348
Khimiya Geterotsiklicheskikh Soedinenii, 1984 , # 12 p. 1634 - 1637
